AIRWORTHINESS DIRECTIVE SUMMARY SUBJECT INDEX

D17S T C 649 48-51-1 Control wheel shaft inspection B - 5 D18C T C 765 47-33-6 Stabilizer spar replacement B - 3 47-33-7 Alternate static source - B - 3 47-34-1 Expansion type filler cap B-3 47-34-2 T a i l cone drain boles B - 3 47- 34-3 Fuel cell seal B-4 48- 13-1 Generator control box insulation B - 5 48-16-1 Wing spar fittings B - 5 48- 34-1 Stabilizer attachment fittings B - 5 49- 29-2 Budder spring bushings B - 6 53-26-1 B - 5 ignition switch AQ-13 D I S S T C 765 47-33-5 Horizontal stabilizer spar B - 2 47-33-6 Stabilizer spar replacement B - 3 47-33-7 Alternate static source B - 3 47-34-1 Expansion type filler cap B - 3 47-34-2 T a i l cone drain holes B - 3 47-34-3 F u e l cell seal B-4 48- 13-1 Generator control box Insulation B - 5 48-34-1 Stabilizer attachment fittings B - 5 49- 29-2 Eudder spring bushings B - 6 53-26-1 B - 5 ignition switch AQ-13 59-18-2 Fuel line modification B-10 61-15-1 Wing center section truss joints B - l l G-45G, TC-45G, T C 765 59-18-2 Fuel line modification B-10 C - 4 5 H , T C - 4 5 H 60-16-1 Emergency electrical switch and seat relocation B-10 D180-T T C 770 47-33-* Stabilizer spar replacement B - 3 47-33-7 Alternate static source B - 3 47-34-3 T a i l cone drain holes B - 3 47- 51-10 Birdproof windshield B-4 48-16-1 Wing spar fittings B - 5 48-34-1 Stabilizer attachment fittings B - 5 49-29-2 Rudder spring bushings B - 6 53-26-1 B - 5 ignition switch AQ-13 E18S T C 765 56-20-1 T a i l wheel axle B - 9 35 T O 777 47-47-7 Engine Identification plate B-4 47_47_8 Fuel line chafing B-4 48- 8-1 Starter rework B-4 49- 4-1 Aileron chain B - 6 49-26-1 Trailing antenna rework B - 6 49-31-1 Emergency fuel pump " O " rings B-7 49-48-1 Thompson fuel pump B - 7 50- 5-2 Shakespeare controls AQ-45 50-32-1 Oil pump rework A E - 1 1 50-42-1 Elevator tab replacement B-8 51- 14-1 Fuel booster pump removal B - 8 B E E C H A I R C R A F T CORP.—Continued 53-1-2 Fuel selector valve rework _. B~8 53-20-2 Fuel selector valve placard . B-8 55-22-1 Oil outlet check valve B-9 S7-18-1 Fuselage bulkhead cracks B-9 59-8-1 Landing gear limit switches B-10 62-2-1 Spar truss rework B - l l 62-8-3 White plastic rams born control wheels B-12 62-17-1 Beech propeller Model 278 A P - 3 45 T C 5A3 62-24-1 Stabilizer spar B-13 A45 T C 5A3 62-26-1 Oil pickup hoses B - l l 62-17-1 Beech propeller Model 278 A P - 3 62-24-1 Stabilizer spar B - 1 3 62-27-1 Aileron bellerank and rudder aileron bungee interconnect cable B-13 B-15 T C 5A3 62-17-1 Beech propeller Model 278 AP-3 62-24-1 Stabilizer spar B - w 62-27-1 Aileron bellcrank and rudder aileron bungee interconnect cable B-13 I M S T C 5A3 62-17-1 Beech propeller Model 278 A P - 3 50 T C 5A4 57-8-4 Hartzell propeller safety link bar AP-22 58-4-2 Split ring rep\aeement AP-22 58-13-2 Tail light assembly B-10 62-8-3 White plastic rams horn control wheels B-12 65 T C 3A20 62-8-3 White plastic rams horn control wheels B-12 95 T C 3A16 62-8-3 White plastic rams horn control wheels B-12 B E L L H E L I C O P T E R C O , D I V . O F B E L L A E R O S P A C E C O R P , Fort Worth, Tex, 47B H T C 1 47-32-1 Stabilizer damper frame clamp rework B-15 47-32-2 Ballast installation B-15 47-32-3 Tail rotor control pedal pawl stop B-15 47-32-4 Antitorque rotor blades placard B-15 47-32-5 Main rotor mast spinner B-15 47-32-6 Main rotor hub pillow blocks B-15 47-32-7 Intake manifold balance pipe chafing B-15 47-32-8 Stabilizer bar dampers B-16 47-32-9 Horizontal stabilizer brace B-16 47-32-10 Rotor mast assembly replacement B-16 47-32-11 Antenna mast support B-16 47-32-12 Lateral cyclic control disc links B-16 47-32-13 Tail rotor rivet replacement B-16 47-32-14 Engine mount clamps B-16 47-41-2 Oil line supports B-17 47_41_3 Fuel line replacement B-17 47-41-4 Main rotor mast plug retaining washer B-17 47-41-5 Gimbel ring bearing seals B-17 47-41-6 Main rotor blade butt plate screws B-17 47-41-7 Cyclic control bungee spring juniper B-17 47-41-* Stabilizer bar raising levers rework B-17 47- 51-11 Transmission pinion gear bearings B-18 48-2-1 T a i l rotor drive shaft bearing hanger reinforce- ment B-18 48-3-6 Bushings Installation B-18 48-10-2 Rotor blade rework B-18 48-11-5 Rotor drag brace replacement B-18 48-12-5 Shear screw replacement B-18 48-13-2 Fuel pump rocker pin _ B-19 48- 19-1 Damper support frames B-19 43-47-2 T a i l rotor drive shaft B-19 49-52-2 Main rotor hub inspection B-19 50-38-2 Cooling fan rework e~20 51-26-1 T a i l rotor reinforcement 2 - 2 0 51-27-1 Engine mount replacement B-21 51-29-1 Tail rotor gearbox shaft B-21 52-1-1 Blade grip adapter locks B-21 52-1-2 Equalizer horn and drag brace fitting B-21 52-1-3 Damper lever and link , . 5~S> 52-1-5 Rotor blade grip retaining bolt B-22 52-1-6 T a i l boom spoiler , B-22 Civil Model Approval No. Applicable Directives Page No. Added Directives B E L L H E L I C O P T E R CO.—Continued 52-4-3 52-21-1 52-28-3 52-28-4 54- 24-1 55- 5-1 55- 16-1 56- 15-2 56-20-3 56-25-2 57- 7-2 57-8-1 57- 12-4 58-23-1 58-26-2 59-5-1 60-10-1 61-22-1 62-23-2 62-27-2 47B3 H T C 1 47-32-8 47-42-9 47-32-10 47-32-11 47-32-12 47-32-13 47-41-2 47-41-3 47-41-4 47-41-5 47-41-* 47-41-7 47-41-8 47- ^51-11 48-2-1 48-3-6 48-10-2 48-11-5 48-12-5 48-13-2 48-19-1 49-47-2 49-52-2 50-38-2 51-26-1 51-27-1 51-29-1 52- 1-1 52-1-2 52-1-3 52-1-5 52-1-6 52-5-3 52-21-1 52-28-3 52-2M 54- 24-1 55-5-1 55- 16-1 56- 15-2 56-20-3 56-25-2 57- 7-2 57-8-1 57-8-2 57- 12-4 58-23-1 58-26-2 59- 5-1 60- 10-1 61-22-1 Engine mount safety strap B-22 Lord mount guards B-22 T a i l rotor gearbox shaft B-23 T a i l rotor pinion shaft B-23 Antitorque pedal stops B-23 Pitch control link _ - - B-23 T a i l rotor hub fillet B-24 Swashplate control ring B-25 Tail rotor hub bolts B-25 Tail rotor pitch bearings B-26 Rotor hub equalizer link B-27 T a i l rotor drive shaft B _ o o Tail rotor blade inspection B-28 T a l l rotor pitch change bearings B-29 Marvel-Schebler MA4-5AA carburetor B-30 T a i l rotor blade inspection B-31 Scissor level bolts B-31 Pitch link rod end bearing B-33 Main rotor mast thrust bearing B-34 Wood tail rotor blades B-35 Stabilizer bar dampers B-16 Horizontal stabilizer brace B-16 Rotor mast assembly replacement B-16 Antenna mast support B-16 Lateral cyclic control disc links B-16 T a i l rotor rivet replacement B-16 Oil line support B - l 7 Fuel line replacement . B-17 Main rotor mast plug retaining washer B-17 Gimbel ring bearing seals B-17 Main rotor blade butt plate screws B-17 Cyclic control bungee spring jumper B-17 Stabilizer bar mixing levers rework B-17 Transmission pinion gear bearings B-18 T a i l rotor drive shaft bearing hanger reinforce- ment B-18 Bushings installation B-18 Rotor blade rework B-18 Rotor drag brace replacement B-18 Shear screw replacement Fuel pump rocker pin B-19 Damper support frames B-19 T a i l rotor drive shaft B-19 Main rotor hub inspection B-19 Cooling fan rework B _ ^ 2 T a i l rotor reinforcement B _ o ? Engine mount replacement B-21 T a i l rotor gearbox shaft «i Blade grip adapter locks . B-21 Equalizer horn and drag brace fitting B-21 Damper lever and link B-21 Rotor blade grip retaining bolt B-22 T a i l boom spoiler — B-22 Engine mount safety strap B-22 Lord mount guards B-22 T a i l rotor gearbox shaft B _ 2 § T a i l rotor pinion shaft B-23 Antitorque pedal stops B-23 Pitch control link B-23 Tail rotor hub fillet . B-24 Swashplate control ring B-25 T a i l rotor hub bolts B-25 T a i l rotor pitch bearings B-26 Rotor hub equalizer link B-27 T a i l rotor drive shaft B-27 Parker check valve B-27 T a i l rotor blade inspection B-28 T a l l rotor pitch change bearings B-29 Marvel-Schebler MA4-5AA carburetor B-30 T a i l rotor blade inspection B-31 Scissor lever bolts B-31 Pitch link rod end bearing B-33 Civil Model Approval No. Applicable Directives Page No. Added Directives B E L L H E L I C O P T E R CO.—Continued 62-23-2 Main rotor mast thrust bearing B-34 62-27-2 Wood tail rotor blades B-35 47D H T C 1 48-10-2 Rotor blade rework B-18 48-12-5 Shear screw replacement B-18 48-13-2 Pnel pump rocker pin B-19 48- 19-1 Damper support frames B-19 43-47-2 Tail rotor drive shaft B-19 49-53-2 Main rotor hub Inspection B-19 50-38-2 Cooling fan rework B-20 51-26-1 T a i l rotor reinforcement B-20 51-27-1 Engine mount replacement B-21 51- 29-1 T a l l rotor gearbos shaft — B-21 52- 1-1 Blade grip adapter locks B-21 52-1-2 Equalizer horn and drag brace fitting B-21 52-1-3 Damper lever and link B-21 52-1-5 Rotor blade grip retaining bolt .- B-22 52-1-6 Tail boom spoiler B-22 52-5-3 Engine mount safety strap B-22 52-21-1 Lord mount guards B-22 52-28-4 Tail rotor gearbox shaft B-23 52-28-4 T a i l rotor pinion shaft B-23 54- 24-1 Antitorque pedal stops B-23 55-5-1 Pitch control link B-23 55-16-1 T a l l rotor hnb fillet B-24 56- 15-2 Swashplate control ring B-25 56-20-3 T a i l rotor hub bolts B-25 56-25-2 Tail rotor pitch bearings B-26 57- 7-2 Rotor hub equalizer link B-27 57-S-l T a i l rotor drive shaft B-27 57-8-2 Parker check valve , B-27 57- 12-4 Tail rotor blade inspection B-28 5&-23-1 T a i l rotor pitch change bearings B-29 58-26-2 Marvel-Schebler MA4-5AA carburetor B-30 59- 5-1 T a i l rotor blade inspection B - S l 60- 10-1 Scissor lever bolts B-31 61-22-1 Pitch link rod end bearing B-33 62-23-2 Main rotor mast thrust bearing B-34 62-27-2 Wood tail rotor blades B-35 47D1 H T C 1 49-34-5 Ventral fin inspection B-19 49-47-2 T a i l rotor drive shaft B-19 49-52-2 Main rotor hub inspection B-19 50- 5_l Ventral fin replacement _ B-20 50-38-2 Cooling fan rework B-20 51-26-1 T a i l rotor reinforcement B-20 51-27-1 Engine mount replacement B-21 51-29-1 T a i l rotor gearbos shaft B-21 52-1-1 Blade grip adapter locks B-21 52-1-6 Tail boom spoiler B-22 52-1-7 Engine cooling fan B-22 52-5-3 Engine mount safety strap B-22 52-7-1 Loading decal f - ^ 52-21-1 Lord mount guards B-22 52-28-3 T a i l rotor gearbox shaft B-23 52- 28-4 Tail rotor pinion shaft B-23 53- 1-1 Gearbox mounting sleeve . B-23 54-24-1 Antitorqne pedal stops B-23 55-5-1 Pitch control link B-23 56-5-1 T a l l rotor extension drive shafts B-24 56-15-2 Swashplate control ring B-25 56-20-3 Tail rotor hub bolts B-25 56-25-2 Tail rotor pitch bearings B-26 57- 7-2 Rotor hub equalizer link B-27 57-8-1 Tail rotor drive shaft B-27 57-8-2 Parker check valve B-27 57-12-4 T a i l rotor blade inspection B-28 58-23-1 Tail rotor pitch change bearings B-29 58-26-2 Marvel-Schebler MA4-5AA carburetor B-30 59-5-1 Tail rotor blade inspection B-81 60- 10-1 Srtssor lever bolts B-81 61-22-1 Pitch link rod end bearing B-83 62-23-2 Main rotor mast thrust bearing B-34 62-27-2 Wood tail rotor blades B-35 Civil Model Approval No. Applicable Directives Page No. Added Directives B E L L H E L I C O P T E R CO.—Continued 47E 47G 47G-2 47G-2A, 47G-3 T C 2H3 47H-1 H T C 1 54-24-1 Antitorque pedal stops B-23 55-5-1 Pitch control link - , - B-23 55- 16-1 Tail rotor hub fillet — B-24 56- 15-2 Swashplate control ring — B-25 56-25-2 T a i l rotor pitch bearings B-26 57- 7-2 Rotor hub equalizer link B-27 57- 8-1 T a l l rotor drive shaft ~- B-27 58-26-2 Marvel-Schebler MA4-5AA carburetor B-30 59-5-1 T a i l rotor blade inspection B-31 60- 10-1 Scissor lever bolts — B-31 61-22-1 Pitch link rod end bearing — B-33 62-23-2 Main rotor mast thrust bearing B-34 62-27-2 Wood tail rotor blades B-35 H T C 1 54-24-1 Antitorque pedal stops B-2S 55-5-1 Pitch control link B-23 55-14-1 Bearing hanger support bracket B-23 55-16-1 Tail rotor hub fillet , B-24 55-25-1 Bellcrank attachment bolt replacement B-24 56- 1-1 Ventral fin support angle braces B-24 56-5-1 Tail rotor extension drive shafts B-24 56-15-2 Swashplate control ring . B-25 56-20-3 T a i l rotor hub bolts B-25 56-21-1 Hydraulic boost cylinder barrels B-25 56-25-2 T a i l rotor pitch bearings B-26 57- 7-2 Rotor hub equalizer link B-27 57-8-1 T a i l rotor drive shaft B-27 57- 8-2 Parker check valve B-27 57_12-4 T a i l rotor blade inspection B-28 58- 23-1 T a i l rotor pitch change bearings B-29 58-26-2 Marvel-Schebler MA4-5AA carburetor B-30 59-5-1 T a i l rotor blade inspection B-31 60- 10-1 Scissor lever bolts B-31 61-22-1 Pitch link rod end bearing B-33 H T C 1 56-5-1 T a i l rotor extension drive shafts J B-24 56-15-2 Swashplate control ring B-25 56-20-3 T a i l rotor hub bolts B-25 56-21-1 Hydraulic boost cylinder barrels B-25 56-25-2 T a i l rotor pitch bearings B-26 57- 7-2 Botor hub equalizer link B-27 57-8-1 Tail rotor drive shaft B-27 57- 12-4 T a i l rotor blade inspection B-28 58-23-1 Tail rotor pitch change bearings B-29 58-26-1 Engine cooling fan index plate assembly B-30 58-26-2 Marvel-Schebler MA4-5AA carburetor B-30 59- 5-1 T a i l rotor blade inspection B - d l 60- 10-1 Scissor lever bolts *™L 61-22-1 Pitch link rod end bearing B-33 62-23-2 Main rotor mast thrust bearing B-34 62-27-2 Wood tail rotor blades B-35 61-14-2 Float cross tube B-32 61- 22-1 Pitch link rod end bearing B-33 62- 23-2 Main rotor mast thrust bearing B-34 62-27-2 Wood tail rotor Wades B-35 H T C 1 56-5-1 Tail rotor extension drive shafts B-24 56-15-1 Revised antitorque control system - — B-25 56-15-2 Swashplate control ring B-25 56-15-3 Synchronized elevator centering spring B-25 56-20-3 T a i l rotor hub bolts B-25 56-21-1 Hydraulic boost cylinder barrels B-25 56-25-2 T a l l rotor pitch bearings B-26 57- 7-1 Elevator inspection and rework B-26 57-7-2 Rotor hub equalizer link B-27 57-S-I Tail rotor drive shaft B-27 57-8-2 Parker check valve B-27 57-12-1 Elevator control alinement B-28 57-12-2 T a i l boom attach fittings B-28 57- 12-4 T a l l rotor blade inspection B-28 58-23-1 T a i l rotor pitch change bearings B-29 58-26-2 Marvel-Schebler MA4-5AA carburetor B-30 59-5-1 Tail rotor blade inspection B-31 60- 10-1 Scissor lever bolts B-31 CiTil Model Approval Applicable Directives Page No. Added Directives B E L L H E L I C O P T E R CO^-Continued 4TJ T C 2H1 47J-2 4 T K T C 2H1 T C 2H1 61-22-1 Pitch link red end bearing B-33 62-23-2 Main rotor mast thrust bearing B-34 62-27-2 Wood tail rotor blades B-35 57-7-2 Rotor bub equalizer link B-2T 5 7 - M Tail rotor drive shaft B-27 57-12-3 Engine sprag spindle B - 2 8 57-12-4 Tail rotor blade inspection B-28 58-2-1 Rotor blade bond separation B-29 58-9-1 Main rotor blade inspection B-29 58-17-1 Rotor counterweight bracket B-29 58-26-1 Engine cooling fan index plate assembly B-30 58-26-2 Marvel Schebler MA4-5AA carburetor B-30 53-5-1 Tail rotor blade inspection B-31 69-10-1 Scissor lever bolts B-31 61-14-2 Float cross tube B-32 61-22-1 Pitch link rod end bearing B-33 62— 10-1 Elevator modification B-33 62-23-2 Main rotor mast thrust bearing B-34 62-27-2 Wood tail rotor blades B-35 61-3-1 Pinion gear B-32 61-14-2 Float cross rnbe B-32 61-22-1 Pitch link rod end bearing B-^33 62- 10-1 Elevator modification B-33 62-23-2 Main rotor mast thrust bearing B-34 62-27-2 Wood tail rotor blades B-35 60- 10-1 Scissor lever bolts B-31 61-22-1 Pitch link rod end bearing B-33 62-23-2 Main rotor mast thrust bearing B-34 62-27-2 Wood tail rotor blades B-35 B E L L A N C A A I R C R A F T C O R P , New Castle, Del. (See D O W N E R A I R C R A F T for Model 14-19) 14-13.14-13-2, T C TT3 46-41-1 Rudder bellcrank replacement B-37 14-13-3 46-11-2 Aileron control bushing B-37 46- 41-3 Control wheel universal joints B-37 47- 7-1 Fuel selector valve Indexing B-37 47-14-1 Flap hinge bracket replacement B-37 47-25-9 F i n and stabilizer fittings B-37 47-32-17 Landing gear inspection covers . B-37 47-32-18 Aileron idler sprocket cotter pin B-38 47-50-13 Koppers propeller hub AP-29 47-51-13 Cabin beat control valve B-38 48-5-3 Trim tab bracket bolts B-38 48-13-6 Engine cowl brackets 5-38 48-21-1 Accelerator pamp linkage , B-38 48- 50-1 Franklin cylinder base flanges A E - 1 49- 13-2 Landing gear drag strut rework B-38 50- 47-1 Sensenich propeller blades AP-27 51- 16-1 Trim tab modification B-39 52- 17-1 Landing gear chain guard B-39 52-28-2 Fuel pump relief valve B-39 62-19-1 Kndder bellcrank B-40 B O E I N G A I R P L A N E C O , R e n t o n , Wash. 247-D A T C 558 44-52-1 17SRT spar cords B-41 46- 5-1 F u e l pump elbow i i ~ i A S-307 T C 719 44-20-2 24SRT tubing B-41 47- 14-2 Landing gear motor attachment keys B-43 SA-307B, T C 726 44-20-2 24SRT tubing B-41 SA-307B-1 47-14-2 Landing gear motor attachment keys n-ta 314, A-314 T C 704 45-4-1 24SRT tubing B-41 377 T C 812 49-6-4 Carburetor compensating bellows B—43 50- 40-1 Nose gear rework ?^?%s 51- 9-1 Engine power measurement AEj-25 51-27-2 Goodrich wheels 52- 12-1 Freon compressor motor S~t^ 52- 15-1 Propeller reversing rework 53-5-1 Curtiss propeller reversing circuits A F - 5 CivU Model Approval No. Applicable Directives Added Directives B O E I N G A I R P L A N E CO,—Continued 707 720 55-9-1 55-9-4 55-15-1 56-1-2 56-19-2 60-20-2 T C 4A21 59-8-2 & 4A26 59-10-1 59-14-1 59-16-5 59-17-2 59-20-4 59-21-1 60-2-1 60-2-2 60-2-3 60-2-4 60-3-1 60-4-2 60-6-1 60-6-2 60-10-3 60-11-1 60-16-2 60-23-1 61-6-1 61-18-1 61-24-1 62-2-2 62-2-3 62-8-4 62-8-5 62-9-1 62-12-1 62-12-2 62-13-2 62-16-1 62-17-2 62-24-2 62-25-1 T C 4A28 61-18-1 61-19-1 61-24-1 62-2-2 62-2-3 62-8-4 62-8-5 62-9-1 62-12-1 62-12-2 62-13-2 62-16-1 62-17-2 62-24-2 62-25-1 Propeller circuit breaker replacement B-46 Rework of Hamilton Standard 24260 propeller hubs A P - 1 2 F i r e resistant propeller feathering lines B ^ 6 Rear spar splice bolt holes 2J17 steel Hamilton Standard propeller blades _ AP-12 Hamilton Standard 34E60 propeller blades AP-19 Bendix compass system B-46 Cockpit lining trim strips B-47 Nose wheel well door tube B ^ 7 Hydraulic pump Purolator filter Turbocompressor flanges f Rudder feel spring B-48 Wing splice plates \tla Aileron balance panel end seals B-49 Water injection system A Mach and fire warning systems B-50 Foreflaps ^ 0 Foreflaps 5 « Nose gear cylinder i Flight recorder switch D~KO Aileron balance tab Engine nose dome Fuel dump chute B-53 Engine start lever Main gear outer cylinder B-54 Landing gear trunnion support B-55 P&W engine oil screen B-57 Engine compressor rotor disc 2 ~fo Secondary fuel seal Magnesium stabilizer skin S R O J6 electrical panel Control cable pressure seals B-59 Toilet flushing motors 5~S2 Cabin cove light £-&0 Autopilot trim servo wire bundle B - W Razor outlet deactivation TT!»T Landing gear truck beam o AO Hydraulic valves n ™ Flight control system B-63 Landing gear trunnion support B-55 Fuel dump safety switch B-56 P&W engine oil screen B-57 Engine compressor rotor disc B-57 Secondary fuel seal Magnesium stabilizer skin B-58 J 6 electrical panel B-59 Control cable pressure seals ~ B-59 Toilet flushing motors B-60 Cabin cove light B-jSO Autopilot trim servo wire bundle B-60 Razor outlet deactivation B-61 Landing gear truck beam B-61 Hydraulic valves B-62 Flight control system B _ 6 3 B O E I N G A I R P L A N E C O , Wichita Division, Wichita, Kans. A75L3,75, A-75, T C 743 46-24-1 Wing drain holes B-65 B-75, E-75, 49-23-1 Fuselage truss B-65 A75J-1, D75N1 50-6-2 Wing spar inspection B-65 60-8-2 Longeron cracks B-65 B R A N T L Y H E L I C O P T E R CORP., Frederick, Okla. B - 2 T C 2H2 60-6-3 T a i l rotor guard B-67 60-7-2 T a i l rotor drive shaft B-67 60-10-2 Rotor blade inspection and retirement B-67 60-26-3 Drive shaft coupling B-68 61- 4-1 Clutch bolts B-68 Civil Model A p p r o v a l A p p l i c a b l e Directives N o . B R A N T L Y H E L I C O P T E R CORP.—Continued 61—11—1 Landing gear drag brace rod end B-68 61-11-2 Oil srstem modification B-69 61-16-3 Seat"modification B-69 61-16-4 Transmission mount lug B-69 61-18-2 T a i l rotor modification B-70 61- 23-1 Rotor blade bond separation B-70 62-5-2 Fuel pump seals B-71 62-6-1 Seat back adjustment 1 1 - 7 1 A d d e d Directives C A L L A I R I N C , Afton, Wyo. S-1A T C 737 46-36-1 A . A - 2 . A - 3 , T C 758 47-40-2 A - 4 , A - 5 , A - 6 60-7-3 Continental piston pins Continental C75 and C85 piston pins Engine mount brace C A N A D A I R L T D . , Montreal Que, Canada CL-44D4 T C 1A20 61-21-1 T a i l pipe door C-3 61-22-2 Landing gear rotation lever C-3 61-22-3 Elevator hinge fittings C-i 61-23-2 Elevator tab tension rods C-4 61- 26-2 Tail heater inspection C-5 62- 8-6 Engine breather duct overheat detectors C-5 62-9-2 Scavenge oil line magnetic ping and filter C-5 62-21-1 Scavenge oil temperature indicating system C-5 C E S S N A A I R C R A F T C O R P , Wichita, Kans. T-50 T C 722 46-1-1 Flap chain C-7 46-1-2 Wing covering C-7 46-12-1 Fabric inspection C-7 46- 46-3 Aileron and flap hinge brackets C-S 47-5-1 Fuel shutoff valve handle C-8 47-30-2 Brake pedal link reinforcement C-10 47-30-3 Inspection of wings for identification C-10 47-30-4 Landing gear chains C-10 51-18-1 Rudder torque tube C-15 51-25-1 Horizontal stabilizer grommets C-15 53-6-1 Landing light motor circuit C-16 53-18-1 Goodrich wheel bearing C-16 56-21-2 Wing spar inspection C-16 58-4-2 Split ring replacement AP-22 120,140 T C 768 4S-44-1 Rudder stop bolts C-7 46-44-2 Safety belt bracket reinforcement C-7 46- 44-3 Windshield retaining channel C-7 45-44-4 Carburetor hot air ducts C-8 46 11-5 Engine mounting bolts C-8 47-6-10 Aileron carry-through bar C-9 47-6-11 Forward doorpost cracks C-9 47-26-2 Wing leading edge rework C-9 47-40-2 Continental C75 and C85 piston pins A E - 9 47-43-1 Primer line relocation C-10 47-43-2 Fuel selector valve handle C - l l 47-43-3 Seaplane spreader struts C ~ l l 47-43-4 Rudder control cable horns C - l l 47-43-5 Elevator spar web reinforcement C-12 47-43-6 Aileron support ribs C-12 47_43-8 Beech R003-201 propeller blades C-12 47-50-2 Fuselage bulkhead C-12 48-5-4 Operator limitations placard C-12 48-7-1 Stabilizer attaching bolts C-13 48-25-2 Welded exhaust muffler C-13 48-25-3 Wing drag wire system 0-13 48-48-1 Freedman propeller hubs A P - 9 50- 31-1 F i n spar reinforcement - C-13 51-21-1 Rudder rib flanges C-15 61-25-1 Met-Co-Aire landing gear C-19 62- 24-3 Cabin heat system - C-20 140A T C 5A2 61-25-1 Met-Co-Aire landing gear C-19 62-24-3 Cabin heat system O 2 0 150 T C 3A19 61-6-2 Cabin beat muffler C-18 62-22-1 Vacuum pump modification C-20 C i v i l Model A p p r o v a l N o . A p p l i c a b l e Directives Page N o . A d d e d Directives C E S S N A A I R C R A F T CORP.—Continued 150A T C 3A19 61-6-2 Cabin heat muffler C-18 170 T C 799 48-43-2 Continental C-145-2 engines A E - 1 0 54-2-2 Federal ski rigging AQ-29 172 T C 3A12 58-8-2 Exhaust heater inspection C-17 59-10-3 Flasher switch ^ C-17 175, 175A, T C 3A17 62-22-1 Vacuum pump modification C-20 175B, 175C 180 T C 5A6 53-15-3 Hartzell HC82X link screws AP-21 55_4-l Federal wheel skis AQ-29 58-9-2 Piston guide rod AP-23 59- 10-3 Flasher switch C-17 62-17-4 Float attachment struts AQ-27 180A T C 5A6 59-10-3 Flasher switch C-17 62_17_4 Float attachment struts AQ-27 182.182A T C 3A13 59-10-3 Flasher switch C-17 1&5 T C 3A24 62-17-4 Float attachment struts — AQ-27 190 T C 790 50-39-1 Rudder cable inspection C-14 51-10-4 Cowl mounting channels C-14 51-11-2 Elevator spar C-14 61-17-1 Wing spar inspection C-19 195 T C 790 50-39-1 Rudder cable inspection C-14 51-11-2 Elevator Spar C-14 61-17-1 Wing spar inspection C-19 310 T C 3A10 57-4-1 Aileron hinge — C ~ 1 7 CHAMPION A I R C R A F T CORP., Osceola, Wise. 7AC T C 759 46-36-1 Continental piston pins A E - 9 47-20-1 Gascolator bowl cleaning A-7 47-20-2 Oleo piston - A-7 47-30-1 Lift Strut wing attachment fittings A-7 47-30-5 Exhaust stack inspection . A - 7 48-4-2 Wing rib rework A-7 48-8-2 Cleveland wheel inspection AQ-17 48-39-1 Control stick rework C-23 49- 11-2 Wing attach fitting A - 8 S7AC T C 759 46-36-1 Continental piston pins A E - 9 47-20-1 Gascolator bowl cleaning A-7 47-30-1 Lift strut wing attachment fittings A-7 47-30-5 Exhaust stack inspection A-7 47-50-5 Float wirepull fitting AQ-27 48-4-2 Wing rib rework A - 7 48-8-2 Cleveland wheel inspection AQ-17 48- 39-1 Control stick rework C-23 49- 11-2 Wing attach fitting , A-8 7BCM T C 759 47-20-1 Gascolator bowl cleaning A-7 48-8-2 Cleveland wheel inspection AQ-17 48-39-1 Control stick rework C-23 49- 11-2 Wing attach fitting A-8 7EJC T C 759 48-8-2 Cleveland wheel inspection AQ-17 56- 4-1 Control stick socket C-23 7 F C T C 759 48-8-2 Cleveland wheel inspection AQ-17 57- 20-1 Fireproof steering link boot C-23 C O L O N I A L (See L A K E ) C O M M O N W E A L T H A I R C R A F T 1 , I N C . Rearwin 175, T C 729 46-36-1 Continental piston pins A E - 9 180,185 47-40-2 Continental C75 and C85 piston pins A E - 9 48-6-2 Jury struts - C-27 Rearwin 180F, T C 729 48-6-2 Jury struts C-27 190F C O N V A I R (See General Dynamics) C U L V E R (See S U P E R I O R ) 1 A p p r o v a l \ Page A d d e d Directives C i v i l Model N o . A p p l i c a b l e Directives N o . A d d e d Directives C U R T I S S - W R I G H T C O R P . C-16,C~46D T C 789 &772 C - i 6 E . C-46F T C 772. 786. 808. 789. &3A2 47-51-2 Elevator hinge bolts C-33 47-51-4 Propeller antineat shield C-34 47-51-7 Landing gear drag strut C-35 48-3-5 Hydraulic lines C-35 48-44-2 Wing attach bolts C-35 49- 12-1 Aileron trim tab motor support bracket C-35 49-18-1 Combustion heater fire protection C-35 49-25-1 Cargo compartment Are protection C-36 50- 22-1 Supercharger impeller thrust bearings A B-23 50-26-1 Landing gear side braces C-37 50-29-1 Wing center section rivets C-37 51-10-6 Control surface fittings C-38 51-20-1 Cockpit light rework C-38 51- 29-2 Inspection main landing gear side brace C-38 52- 10-1 Ammeter circuit protection C-39 52-12-2 Cabin door lock C-39 52-17-2 Tailwheel rework C-39 52-18-1 Carburetor gasket modification C-40 52- 19-1 Powerplant fire protection C-40 53-10-1 Vacuum system discharge line C-42 54- 5-1 Landing gear retraction cylinder head C-42 54- 14-1 Horizontal stabilizer ribs C-43 55-9-2 Control column inspection C-43 57-5-1 Hydraulic vent line C-44 57-11-1 Elevator spring tab cartridge C - H 57-13-5 Hamilton Standard propeller corrosion barrier - A p ~ 1 5 57- 15-2 Goodrich wheel inspection C-45 58- 17-2 Horizontal tail inspection C-46 58-17-3 Propeller feathering line rerouting C-46 5S-20-1 Tail wheel retract yoke C-46 60-3-2 Cargo fire protection C-47 60-23-2 Unapproved inspection openings C-47 60-25-1 Wing bolts C-47 61-22-4 Landing gear drag struts C-48 62- 10-2 Fire protection modification C-48 62-27-3 Rudder spring tab rod terminal C-50 47-51-2 Elevator hinge bolts C-33 47-51-3 Aileron rib rework C-33 47-51-4 Propeller antiheat shield C-34 47-51-5 Aileron horn C-35 47- 51-7 Landing gear drag strut C-35 48-3-5 Hydraulic lines C-35 48-44-2 Wing attach bolts C-35 49- 12-1 Aileron trim tab motor support bracket C-3o 49-18—1 Combustion heater fire protection C-3a 49-25-1 Cargo compartment fire protection C-36 50-22-1 Supercharger impeller thrust bearings AE4J3 50-26-1 Landing gear side braces C-37 50-29-1 Wing center section rivets C-37 51- 10-6 Control surface fittings C-38 51-20-1 Cockpit light rework C-38 51-29-2 Inspection main landing gear side brace C-38 52- 10-1 Ammeter circuit protection C-39 52-12-2 Cabin door lock C-39 52-17-2 Tailwheel rework '"""^n 52-18-1 Carburetor gasket modification < "'~^r! 52- 19-1 Powerplant fire protection C-40 53- 10-1 Vacuum system discharge line C-42 54-5-1 Landing gear retraction cylinder head C-42 54- 14-1 Horizontal stabilizer ribs C-43 55-9-2 Control column inspection C-43 57-5-1 Hydraolic vent line C-44 57-11-1 Elerator spring tab cartridge C-44 57-13-5 Hamilton Standard propeller corrosion barrier - AP-15 57- 15-2 Goodrich wheel inspection C-45 58- 17-2 Horizontal tail inspection C-46 58-17-3 Propeller feathering line rerouting C-46 58-20-1 Tail wheel retract yoke C-46 60-3-2 Cargo fire protection C-47 60-23-2 Unapproved inspection openings C-47 60-25-1 Wing bolts C-47 61- 22-5 Landing gear drag struts C-48 62- 10-2 F i r e protection modification C-48 C i v i l Model A p p r o v a l N o . A p p l i c a b l e Directives F a s e N o . A d d e d Directives C U R T I S S - W R I G H T CORP.—Continued 62-27-3 Rudder spring tab rod terminal C-50 CM6R T C 3A2 58-17-2 Horizontai tail inspection C-46 58-17-3 Propeller feathering line rerouting C-46 58-20-1 T a i l wheel retract yoke C-46 60-3-2 Cargo fire protection . C-47 60-23-2 Unapproved inspection openings C-47 60-25-1 Wing bolts C ^ 7 61-22-5 Landing gear drag struts C-47 62- 10-2 Fire protection modification C-48 62-27-3 Rudder spring tab rod terminal C-50 de H A V I L L A N D A I R C R A F T CO. L T D . , Hatfield, Herts, England 104 Dove T C 807 55-20-1 Engine mount pickup fittings D-4 55-25-2 Front fin attachment brackets D-4 55—25—3 Earth post corrosion D-4 56- 11-1 Oil pressure and temperature gage modifications D-5 56-15-4 Nose gear brackets D-5 56-15-5 Control surface fittings D-5 56- 19-1 Aileron pulley locking pin D-6 57-5-2 Wing spar joint inspection D-6 57- 20-2 Landing gear pistons D-7 58-20-2 F i r e extinguisher electrical circuit D-7 59- 1-2 Landing gear locking lever D-7 59-5-2 Oil dipstick modification D-7 59- 12-8 Fire extinguisher spray pipe D-8 60- 12-3 Wing root fitting D-8 61- 11-3 Wing center section spar D-9 61—11—4 Wing spar boom corrosion D-9 61- 18-3 Wing lower root joint fittings D-10 62- 14-2 Aileron lever D - l l 114 Heron T C 816 60-12-2 Wing root fitting D-8 61-23-3 Wing rear spar D-10 62- 14-2 Aileron lever • D-10 D H C - 2 T C 806 53-7-1 Elevator hinge attachment D - l 53-9-2 Fuselage skin cracks D - l 53-10-2 Wing skin cracks D-2 53-11-2 Engine oil sump chafing D-2 53-12-2 Hydraulic hand pump seals D-2 53-21-1 Wing rear spar attachment bolt D-2 53-23-2 Fuel tank filler neck D-3 54- 11-1 Tailplane attachment brackets D-3 54-15-1 Control cable turnbuckle threads D-3 57-13-2 Cabin heater inspection D-7 D H C - 3 T C 815 56-17-2 Flap control restriction D-6 D O U G L A S A I R C R A F T CO., INC., Santa Monica, Calif. A-26B, A-26C L T O 3 47-36-1 Wing fitting rework D-21 47-36-2 Oil screen replacement D-21 55-26-1 Fuselage fuel tank modification D-53 56- 18-3 Nose wheel cross beam D-55 61—11—5 Wing structure corrosion D-66 DC3 and D S T T C 669 39-24-1 Attach angles and doublers D-13 models with 41-47-1 Control surface rebalance D-14 Pratt & Whitney 43-12-1 Elevator hinge brackets D-14 engines 46-12-2 Engine mount fittings D-14 46-13-4 Landing gear brace strut fittings 46-13-5 Canvas control boot 46-43-1 Attach angle corrosion 46-43-2 Rudder pedal slide tube support bolt 47-2-10 Elevator rib inspection and reinforcement D-18 47-6-7 F i r e extinguisher trigger D-18 47-33-2 Cowl flap hydraulic lines D-20 47- 51-12 Carburetor airscoop D-28 48- 5-1 Oil shutoff valve " O " rings D-30 48—17—1 F i r e prevention modifications D-35 50- 46-1 Oil tank standpipe D-41 51-2^1 Ramp type door rework 52-22-3 Attach angles and doublers D ^ 5 52-25-1 Vacuum system rework D-46 C i v i l Model A p p r o v a l N o . Applii-ablft Directives Pase N o . A d d e d Directives D O U G L A S A I R C R A F T C O , INC.—Continued 55- 15-3 Fire resistant propeller feathering lines D-52 56- 14-2 Landing gear axle D-54 56-25-5 Propeller operating limits E>-55 58-4-1 " A i r s t a i r " door safetying D-57 58-8-3 C B fire extinguisher system D-57 58-12-1 Wing attachment tolerances D-58 60-16-3 Geared rudder tab D-62 DCS and D S T T C 618 "39-24-1 Attach angles and doublers D-13 models with *41-47-l Control surface rebalance D-14 Wright engines; 46-12-2 Engine mount fittings D-14 (Notes marked *46-13-4 Landing gear brace strut fittings D-15 also apply 46-13-5 Canvas control boot D-15 toAnnyB-18, * 46-43-1 Attach angle corrosion D-16 -18A, and -18B) 46-43-2 Rudder pedal slide tube support bolt D-16 47-6-7 Fire extinguisher trigger D-18 47-33-2 Cowl flap hydraulic lines D-20 48-5-1 Oil shutoff valve " O " rings D-30 48-17-1 F i r e prevention modifications D-35 50- 46-1 Oil tank standplpe D-41 51-2-1 Ramp type door rework D-42 52-22-3 Attach angles and doubters D-45 52-25-1 Vacuum system rework D-46 55-15-3 F i r e resistant propeller feathering lines D-52 56- 14-2 Landing gear axle D-54 56-20-5 Propeller operating limits D-55 58-4-1 " A i r s t a i r " door safetying D-57 58-8-3 C B fire extinguisher system D-57 58-12-1 Wing attachment tolerances D-58 60-16-3 Geared rudder tab D-62 C54-DC, T C 762 46-11-2 Oxygen regulator relocation D-14 C54A-DC, 46-11-3 Landing gear door stud D-14 C54B-DC and 46-24-2 Revision of magneto wires D-15 C54D-DC 46-27-1 Spar web reinforcements D-15 46-27-2 Xose wheel brace strut collar D-16 46-39-3 Magneto wires inspection D-16 46-39-4 Fuel tank valve rework D-16 46-39-5 Fuel line supporting brackets D-16 47-2-1 Eshanst collector ring bolts D-17 47-2-2 Stabilizer attach fittings and bolts D-17 47-2-3 Accumulator replacement D-17 47-2-4 Engine primer solenoid . D-17 47-2-5 Electrical system inspection D-17 47-2-6 Hydraulic hand pump shutoff valve D-17 47-12-1 Seal fuselage openings to prevent CO in cabin „ D-18 47-12-2 Center main bearings R-2000-11 engine D-18 47-16-1 Circuit breakers D-19 47-16-2 18-gage wire in oil dilution solenoid D-19 47-27-2 Spar web inspection—tank area D-19 47-27-4 Exhaust collector ring " T " outlet reinforcement D-20 47-33-1 Stabilizer binge brackets D-20 47-42-1 Gust lock rework D-22 47-42-2 Cowling fire seal D-.J2 47-42-3 F i r e prevention changes 2! 48- 1-1 Goodyear wheel rework D-29 4S-2-2 Fire detector clamp D-29 48-3-2 Emergency air brake D-|0 48-6-5 Control surface attachment rework ^~~t* 48-9-1 Fuel transfer placard D-31 48-9-2 Electrical distribution bus D-31 48-12-1 Fire prevention requirements D-rf4 48-12-2 Xose and cabin heater rework D-^4 48-14-4 Tailpipe shroud deflector 5 O R 48-15-3 Hydraulic pressure regulator rework D-35 48-17-4 Pesco vacuum pumps D-36 48-25-1 Fire warning system D-36 48-28-2 Cabin heater combustion ducts D-37 48-44-1 Xose gear orifice fitting D-37 49-27-3 Xose gear yoke end fittings D-38 49-38-2 Bolt replacement D-39 49-46-1 Vacuum system fusible plug D-39 51-9-2 Elevator and rudder hinge brackets and bolts — D-42 53M9-1 Generator cooling fan - D-49 C i v i l Model A p p r o v a l N o . A p p l i c a b l e Directives Page N o . A d d e d D i r e c t i v e ! D O U G L A S A I R C R A F T C O , INC.—Continued 55- 15-3 F i r e resistant propeller feathering lines D-52 56- 20-5 Propeller operating limits D-55 57- 16-1 Nose gear piston tube D-56 62-26-1 Engine-propeller operating restrictions D-78 C 5 4 E - D C T C 762 46-11-2 Oxygen regulator relocation D-14 46-24-2 Revision of magneto wires D-15 46-27-1 Spar web reinforcements D-15 46-27-2 Nose wheel brace strut collar D-16 46-39-3 Magneto wires inspection D-16 46-39-4 Fuel tank valve rework D-16 46- 39-5 Fuel line supporting brackets D-16 47-2-1 Exhaust collector ring bolts D-17 47-2-2 Stabilizer attach fittings and bolts D-17 47_2-3 Accumulator replacement D-17 47-2-4 Engine primer solenoid D-17 47-2-5 Electrical system inspection D-17 47-2-6 Hydraulic hand pump shutoff valve D-17 47-12-1 Seal fuselage openings to prevent CO in cabin __ D-18 47-12-2 Center main bearings R-2000-11 engine D-18 47-16-1 Circuit breakers D-19 47-16-2 18-gage wire in oil dilution solenoid D-19 47-27-2 Spar web inspection—tank areas D-19 47_27-4 Exhaust collector ring " Y " outlet reinforcement- D-20 47-33-1 Stabilizer hinge brackets D-20 47-42-1 Gust lock rework D-22 47-42-2 Cowling fire seal D-22 47-42-3 F i r e prevention changes D-22 48-1-1 Goodyear wheel rework D-29 48-2-2 F i r e detector clamp D-29 48-3-2 Emergency air brake D-30 48-6-5 Control surface attachment rework D-30 48-9-1 Fuel transfer placard D-31 48-9-2 Electrical distribution bus D-31 48-12-1 F i r e prevention requirements D-34 48-12-2 Nose and cabin heater rework D-34 48-14-4 Tailpipe shroud deflector D-35 48-15-3 Hydraulic pressure regulator rework D-35 48-17-4 Pesco vacuum pumps D-36 48-25-1 Fire warning system D-36 48-28-2 Cabin heater combustion ducts D-37 48- 44-1 Nose gear orifice fitting D-37 49-27-3 Nose gear yoke end fittings D-38 49-38-2 Bolt replacement D-39 49-46-1 Vacuum system fusible plug D-39 51-9-2 Elevator and rudder hinge brackets and bolts — D-42 53-19-1 Generator cooling fan D-49 55-15-3 Fire resistant propeller feathering lines D-52 56-20-5 Propeller operating limits D-55 57- 16-1 Nose gear piston tube D-56 62-26-1 Engine-propeller operating restrictions D-78 C54G-DC T C 762 46-24-2 Revision of magneto wires D-15 46-27-2 Nose wheel brace strut collar D-16 46-39-3 Magneto wires inspection D-16 46-39-4 Fuel tank valve rework D-16 46- 39-5 Fuel line supporting brackets D-16 47-2-1 Exhaust collector ring bolts D-17 47-2-2 Stabilizer attach fittings and bolts D-17 47-2-3 Accumulator replacement D-17 47-2-4 Engine primer solenoid D-17 47-2-5 Electrical system inspection D-17 47_2-6 Hydraulic hand pump shutoff valve D-17 47-12-1 Seal fuselage openings to prevent CO In cabin __ D-18 47-12-2 Center main bearings R-2000-11 engine D-18 47-16-1 Circuit breakers D-19 47-16-2 18-gage wire in oil dilution solenoid D-19 47-27-2 Spar web inspection—tank areas D-19 47_27_4 Exhaust collector ring " T " outlet reinforcement. D-20 47-33-1 Stabilizer hinge brackets D-20 47-42-1 Gust lock rework D-22 47-42-2 Cowling fire seal D-22 47- 42-3 F i r e prevention changes D-22 48-1-1 Goodyear wheel rework D-29 C i v i l Model A p p r o v a l N o . A p p l i c a b l e Directives Page N o . Added Directives D O U G L A S A I R C R A F T C O , IXC—Continued 48-2-2 Fire detector clamp D-29 48-3-2 Emergency air brake D-30 4S-6-5 Control surface attachment rework D-30 48-9-1 Fuel transfer placard D-31 48-9-2 Electrical distribution bus D-31 48-12-1 Fire prevention requirements D-34 48-12-2 Nose and cabin heater rework D-34 48-14-4 Tailpipe shroud deflector D-35 48-15-3 Hydraulic pressure regulator rework D-35 48-17-4 Pesco vacuum pumps D-36 48-25-1 Fire warning system D-36 48-28-2 Cabin beater combustion ducts D-37 48- 44-1 Nose gear orifice fitting D-37 49- 27-3 Nose gear yoke end fittings D-38 49-38-2 Bolt replacement D-39 49-46-1 Vacuum system fusible plug D-39 51-9-2 Elevator and rudder hinge brackets and bolts — D-42 53-19-1 Generator cooling fan D-49 55- 15-3 Fire resistant propeller feathering lines D-52 56- 20-5 Propeller operating limits D-55 57- 16-1 Nose gear piston tube D-56 62-26-1 Engine-propeller operating restrictions D-78 D C - i T C 762 46-27-2 Nose wheel brace strut collar D-16 46- 39-4 Fuel tank valve rework D-16 47-2-1 Exhaust collector ring bolts D-17 47-2-2 Stabilizer attach fittings and bolts D-17 47-2-3 Accumulator replacement D-17 47-2-4 Engine primer solenoid D-17 47-2-5 Electrical system inspection D-17 47-2-6 Hydraulic hand pump shutoff valve D-17 47-12-1 Seal fuselage openings to prevent CO in cabin D-18 47-12-2 Center main bearings R-2000-11 engine D-18 47-16-1 Circuit breakers D-19 47-16-2 18-gage wire in oil dilution solenoid D-19 47-27-2 Spar web inspection—tank areas D-19 47-27^4 Exhaust collector ring " Y " outlet reinforcement. D-20 47-33-1 Stabilizer hinge brackets D-20 47-42-1 Gust lock rework D-22 47-42-2 Cowling fire seal D-22 47-42-3 Fire prevention changes D-22 48- 1-1 Goodyear wheel rework D-29 48-2-2 Fire detector clamp D-29 48-3-2 Emergency air brake D-30 48-6-5 Control surface attachment rework D-30 48-9-1 Fuel transfer placard D-31 48-9-2 Electrical distribution bus D-31 48-12-1 Fire prevention requirements D-34 48-12-2 Nose and cabin heater rework D-34 48-15-3 Hydraulic pressure regulator rework D-35 4S-17-4 Pesco vacuum pumps D-36 48-25-1 Fire warning system D-36 48-28-2 Cabin beater combustion ducts 48- 44-1 Nose gear orifice fitting D-37 49- 27-3 Nose gear yoke end fittings D-38 49-38-2 Bolt replacement D-39 49-46-1 Vacuum system fusible plug D-39 51-9-2 ElevatoT and rudder hinge brackets and bolts __ D—12 53-19-1 Generator cooling fan D—19 55- 15-3 Fire resistant propeller feathering lines D-52 56- 20-5 Propeller operating limits D-55 57- 16-1 Nose gear piston tube D-56 62-26-1 Engine-propeller operating restrictions D-78 D C - 6 T C 781 47-42-5 Curtain hook replacements D-24 47-42-6 Fire extinguisher placard D-24 47_42-7 Windshield handle spring D-24 47-42-8 Horizontal stabilizer rivets D-25 47-42-9 Oversize aileron hinge plates D-25 47-42-10 Landing gear antiretract mechanism D-26 47-42-11 Horizontal stabilizer front spar cap cracks D-26 47-42-12 Astrodronie reinforcement D-27 47-42-13 Gust lock rework D-27 47-42-14 Voltage regulator bearings D-2i A p p r o v a l Page Added Directives C i v i l Model N o . A p p l i c a b l e Directives N o . Added Directives D O U G L A S A I R C R A F T CO., INC.—Continued 47-42-16 Combustion chamber inspection D-27 47-42-17 Wing center spar web cracks D-27 47-42-19 Horizontal stabilizer front spar cap inspection D-28 47-51-15 Brake relining D-28 47- 51-16 Flap support rework D-28 48-2-4 Brake adjusting pin replacement D-29 48-2-5 Outboard accessory cowling rework D-29 48-2-6 Inboard nacelle cover plates D-29 48-7-2 Engine supercharger control actuator D-30 48-7-3 Door rework D-30 48-10-1 Ungrounding modifications—Class A D-31 48-11-1 Ungrounding modifications—Class B D-33 48-11-2 Ungrounding modifications—Class C D-34 48-19-3 Elevator trim tab operating mechanism D-36 48-22-1 Water-alcohol injection system A E - 2 3 48-48-2 Vacuum pump line replacement D-37 48-49-3 Electrical circuit inspection D-37 48-52-1 Additional modification items D-38 49-6-2 Attachment bolt replacement D-38 49-30-1 Curtiss C632S-A propeller hubs A P - 5 49-33-1 Hamilton Standard propeller blades D-39 49-46-1 Vacuum system fusible plug D-39 50- 16-1 Propeller reverse mechanism D-40 50-18-2 Engine operation placard D-40 50-23-2 Nose gear yoke end fitting D-40 50-43-1 Goodyear L10HBMF wheel inspection D-41 50-52-1 Hamilton Standard 2H17 blades AP-11 51- 1-1 Front spar fittings and studs D-41 51-5-1 Engine power measurements A E - 2 4 51- 10-1 Wing flap operating link D-43 52- 14—1 Propeller reversing rework , D-43 52-18-2 Spar cap rework D-45 52-20-1 Overvoltage protection D-45 52-27-2 Outboard front spar splice plate D-47 52-28-5 Center wing lower access hole D-47 53-5-1 Curtiss propeller reversing circuit A P - 5 53-8-2 Center wing lower skin panel D-48 53-25-1 Aileron control system DH19 54- 6-4 Kidde CO* discharge valve D-50 54-23-1 Fuselage cracks D-50 54- 23-2 Nose gear torque link D-50 55-9-3 Propeller circuit breaker replacement D-51 55-11-1 Nose gear yoke end fitting D-51 55_15_4 F i r e resistant propeller feathering lines D-52 55- 18-2 Propeller reverse protective device D-53 56-8-1 Curtiss C632S, C634D, C634S propellers A P - 7 56-13-1 Wing skin and stringer inspection D-54 56-22-1 Hamilton Standard aluminum alloy blades AP-14 58-11-1 Nose wheel retract link D-58 58-15-1 Safety belt hook assembly D-59 58-23-2 Stabilizer spar fittings D-59 60-2-5 Spar cap D-61 60-3-4 Hamilton Standard 6895-8 blade failures AP-18 61- 4-2 Spar caps D-63 61-5-2 Emergency exit door hinges D-64 61-8-1 Fuel transfer D-66 61-23-4 Spar caps D-69 62-25-2 Main landing gear shock strut cylinder D-77 DC-6A D C - 6 B T C 6 A 3 52-14-1 Propeller reversing rework D-43 & 6A4 52-18-2 Spar cap rework D^45 52-20-1 Overvoltage protection D-45 52-27-2 Outboard front spar splice plate D-47 52-28-5 Center wing lower access hole D-47 53- 5-1 Curtiss propeller reversing circuit A P - 5 53-8-2 Center wing lower skin panel D ^ 8 53- 25-1 Aileron control system D-49 54_6-4 Kidde CO= discharge valve D-50 54- 23-1 Fuselage cracks D-50 54- 23-2 Nose gear torque link D-50 55- 9-3 Propeller circuit breaker replacement D-51 55-11-1 Nose gear yoke end fitting D-51 Civi] Model A p p r o v a l N o . A p p l i c a b l e Directives A d d e d Directives D O U G L A S A I R C R A F T CO„ INC—Continued 55-15-4 Fire resistant propeller feathering lines D-52 55- 18-2 Propeller reverse protective device D-53 56- S - l Curtiss C632S. C634D, C634S propellers AP-7 56- 13-1 Wing skin and stringer inspection D-64 SS—11-1 Nose wheel retract link D-58 58-15-1 Safety belt boob assembly D-59 58- 23-2 Stabilizer spar fittings D-59 59- 13-6 Lower front spar cap D-60 6Q-3-4 Hamilton Standard 6885-8 blade failure AP-18 61-4-2 Spar caps D-63 61-5-2 Emergency exit door hinges D-64 61-8-1 Fuel transfer D-66 61-23-4 Spar caps D-69 62-25-2 Main landing gear shock strut cylinder D-77 DC-7 T C 4A10 54-23-2 Nose gear torque link D-50 55-11-1 Nose gear yoke end fittings D-51 55-15-5 Fire resistant propeller feathering lines — D-52 55-20-2 Wing skin heat shields D-53 57-3-2 Fuel strainer screen — D-55 57-3-3 Micronic filter cover Dr55 57-16-2 Rudder tab push-pull tube D-56 57- 16-3 Elevator tab pushrod D-56 58-5-1 Goodvear outboard wheel halves D-57 58-11-1 Nose wheel retract link D-58 58- 15-1 Safety belt hook assembly D-59 59- 2-2 Engine cowling alining D-59 59- 6-2 Landing gear orifice check valve — D-60 60-20-2 Hamilton Standard 34E60 propeller blades AP-19 61-5-2 Emergency exit door hinges — D-64 61-6-3 Spar caps — D-65 61-8-1 Fuel transfer D-66 62-25-2 Main landing gear shock strut cylinder D-77 DC-8 T C 4A25 60-S-3 Wing inspection D-61 60- 13-1 Fuel dump chute D-62 61- 6-4 Rudder lockout cylinder clevis D-65 61-6-5 Rudder boost piston locknut D-66 61-12-1 Spoiler control system D-67 61-12-2 Gust lock modification D-67 61-21-2 Thrust reverse procedures D-67 61-21-3 Hydraulic fluid gage D-68 61-21-4 Hydraulic pump discharge hoses and clamps — D-68 61-24-1 P&W engine oil screen D-69 61-24-2 Hydraulic system modifications D-70 61-24-3 Throttle interlock modification D-70 61- 25-3 Wing flap actuating cylinders D-71 62-2^-2 Engine compressor rotor disc D-72 62-2-4 Aileron tab lockout bracket D-72 62-12-4 Wing flap rod-end bearings D-73 62-16-2 Outboard flap actuating cylinders D-73 62-17-3 Overwing emergency exits D-74 62-20-1 Flap cylinder hoses D-75 62-23-3 Main landing gear actuating cylinder upper attach brackets D-76 62-24-4 Midwing flap actuating cylinder barrels D-77 62-27-4 Outboard pylons spar cap structure D-78 D O W N E R A I R C R A F T I N D U S T R I E S I N C , Alexandria, Minn. Bellanea 14-19 T C 1A3 47-50-13 Koppers propeller hub AP-25 51-16-2 Trim tab modification D-75 53-16-1 Elevator trim tab looseness D-75 62-19-1 Rudder bellcrank D-86 Republic R C - 3 T C 769 47-21-11 Firewall stud bashings D - T l 47-21-12 "No Smoking" placard D-71 47-21-13 Elevator push-pull tube rivets D-71 47-21-14 Elevator control cable guide D-71 47-21-15 Radio filters D-71 47-21-16 Fuel strainer drain D-71 47-21-17 Backfire screen D-72 47-21-18 Mixture control support bracket D-72 47-21-19 Control clamps or brass ferrules D-72 A p p r o v a l Page Added Directives C i v i l Model N o . A p p l i c a b l e Directives N o . Added Directives D O W N E R A I R C R A F T I N D U S T R I E S INC.—Continued 47-21-20 Oil pressure gage line restrictor D-72 47-21-21 Tip float struts D-72 47-21-22 Engine mounting bolt lock washers D-72 47-21-23 Engine cooling fan D-73 47-47-10 Float strut rework D-73 47-47-11 Propeller reverse control spring D-73 47-47-12 Carburetor antiswirl vanes D-73 47-47-13 Hartzell propeller hub counterweight D-73 47-47-14 Oil screen inspection D-74 47- 51-8 Tailwhcel horns D-74 48- 1-3 Elevator trim tab bushing D-74 48- 11-4 Hydraulic pump handle D-74 49-3-1 Fuel pump diaphragms D-75 49-31-2 Fuel tank placard D-75 53-23-3 Strut fitting inspection D-75 56-17-3 Hartzell HC-12X20 propellers AP-17 E R C O (See A I R P R O D U C T S ) E M I G H A I R C R A F T CORP., Douglas, Ariz. Trojan A-2 T C 801 52-11-1 Elevator tube socket E - l E N G I N E E R I N G AND R E S E A R C H CORP. (See A I R P R O D U C T S ) F A I R C H I L D E N G I N E & A I R P L A N E CORP., Hagerstown, Md. 22C7F A T C 517 46-21-1 Landing gear universal joints - F - l 46-40-2 Oleo tube reinforcement „ F - l 22C7G A T C 564 46-21-1 Landing gear universal joints F - l 46-40-2 Oleo tube reinforcement F - l 24C8C A T C 535 46-21-1 Landing gear universal joints F - l 46-40-1 Fuel tank selector valve placard F - l 46-40-2 Oleo tube reinforcement . F - l 24C8CS A T C 535 46-40-1 Oleo tank selector valve placard F - l 24C8E A T C 600 46-21-1 Landing gear universal joints . F - l 46-40-1 Fuel tank selector valve placard F - l 46-40-2 . F - l 24C8ES A T C 600 46-40-1 Fuel tank selector valve placard F - l 24G A T C 633 46-21-1 Landing gear universal joints __ F - l 46-40-1 Fuel tank selector valve placard _ - _ F - l 46-40-2 Oleo tube reinforcement F - l 24GS A T C 633 46-40-1 Fuel tank selector valve placard F - l 24J T C 663 46-6-3 Kinner master rod knuckle pin - AE-21 46-21-1 Landing gear universal joints F - l 46-40-1 Fuel tank selector valve placard , - F - l 46-40-2 Oleo tube reinforcement — - F - l 24JS T C 663 46-6-3 Kinner master rod knuckle pin AE-21 46-40-1 Fuel tank selector valve placard F - l 24K T C 667 46-21-1 Landing gear universal joints F - l 46-40-1 Fuel tank selector valve placard _ F - l 46-40-2 Oleo tube reinforcement - - F - l 24KS T C 667 46-40-1 Fuel tank selector valve placard F - l 46-40-2 F - l 24R-9. 24R-40 T C 706 46-21-1 Landing gear universal joints F - l 46-40-1 Fuel tank selector valve placard - F - l 47-50-9 Landing gear fittings F - 3 24R-9S, T C 706 46-40-1 Fuel tank selector valve placard F - l 24R-40S 47-50-9 Landing gear fittings - _ F - 3 24R-46, T C 706 46-40-1 Fuel tank selector valve placard F - l 24R-16S 47-21-1 Starter relay terminal wire F - 2 47-21-2 20-ampere landing light fuse F - 2 47-21-3 Rudder cable tur.ibuckles F - 3 47-50-9 Landing gear fittings F - 3 F A I R C H I L D E N G I N E & A I R P L A N E CORP.—Continued 24R-46A T C 706 46-40-1 Fuel tank selector valve placard F - l 47-21-3 Rudder cable rurnbuckles F - 3 47-50-9 Landing gear fittings F - 3 24W-9,24W-40 T C 707 46-6-3 Kinner master rod knuckle ptn AE-21 24W-41 46-21-1 Landing gear universal joints F - l 46-40-1 Fuel tank selector valve placard F - l 47- S0-9 Landing gear fittings F - 3 24W-9S, T C 707 46-6-3 Kinner master rod knuckle pin AE-21 24W-40S, 46-40-1 Fuel tank selector valve placard F - l 24W-41S 47-50-9 Landing gear fittings F - 3 24W-41A T C "07 46-6-3 Kinner master rod knuckle pin AE-21 46-21-1 Landing gear universal joints F - l 46-40-1 Fuel tank selector valve placard F - l 47-21-3 Rudder cable rurnbuckles F - 3 47-50-9 Landing gear fittings F - 3 24W-46, T C 707 46-6-3 Kinner master rod knuckle pin AE-21 24W-46S 46-40-1 Fuel tank selector valve placard F - l 47-21-1 Starter relay terminal wire F - 2 47-21-2 20-ampere landing light fuse F - 2 47-21-3 Rudder cable turnbuckles F - 3 47-50-9 Landing gear fittings F - 3 M-62A, M-62B T C 724 43-7-1 Wing center section spars F - l 47-7-2 Elevator hinge attachments F - l 47-7-3 Wing inspection F - 2 47_7_4 Control stick safetying F - 2 47- 7-5 Torque tube cover F - 2 47_7_6 Vertical fin attachment F - 2 48-45-1 Wing spar inspection F - 3 M-62A3, -1 T C 724 43-7-1 Wing center section spars F - l 46- 14-2 Cockpit beat control valve F - l 47-7-2 Elevator hinge attachments . F - l 47-7-3 Wing inspection F - 2 47-7-4 Control stick safetying F - 2 47-7-5 Torque tube cover . F - 2 47-7-6 Vertical fin attachment F - 2 48- 45-1 Wing spar inspection F - 3 M-62C T C 724 43-7-1 Wing center section spars F - l 46- 14-1 Propeller indexing , F - l 47- 7-2 Elevator hinge attachments F - l 47-7-3 Wing inspection F - 2 47-7-4 Control stick safetying F - 2 47- 7-5 Torque tube cover - F - 2 47_7_S Vertical fin attachment F - 2 48- 45-1 Wing spar inspection F - 3 54-12-2 McCauley propeller failures AP-25 F-27 T C 7A1 58-25-3 Fuselage to wing fairing inspection F - 3 58- 26-3 Westinghouse deicing generator F - 3 59-5-3 Deicer valves F ^ 59-12-1 Combustion heater inspection F - 4 59-18-5 Combustion heater modification F - 4 59-23-3 Fire extinguisher cartridge F - 5 60- 1-4 Rudder balance tab F - 5 60-3-3 Elevator rivets F - 5 60-5-1 Rudder torque tube rivets F - 5 61-10-3 Dowty landing gear cylinder F - 5 61- 15-2 Flap gimbal nuts F - 6 62- 1-1 Chemical drier housing F - 7 62-4-1 Landing gear bolts F - 7 62-17-5 Elevator spar F - 9 62-27-5 Electrical distribution system F - 9 F O R N E Y (See A I R P R O D U C T S ) G E N E R A L D Y N A M I C S CORP., San Diego, Calif. Army BT-13, 2-571 46-6-4 Propeller spinner attaching lugs O 1 BT-13A (Navy 47-25-10 Elevator tab failure G - l S N F - 1 ) ; Army 49-7-3 Fuel system placard G-2 G E N E R A L D Y N A M I C S CORP.—Continued BT-13B (Navy 49-27-1 Fuel line rework G-2 SNV-2) ; 52-2-1 Bronze rear spar fittings G-6 Army BT-15 240 T C 793 48-22-1 Double Wasp engine—water-alcohol Injection __ AE-23 48-41-1 Wing bulkhead—fuel tank area G - l 48-50-4 Nose gear rework G - l 48-51-2 Horizontal tail surface inspection G - l 49- 30-1 Curtiss C632S-A propeller hub A P - 5 49-30-2 Augmenter vane rework G-2 49-34-1 Cockpit checklist G-3 49-38-1 Nose gear strut inspection G-3 49-43-1 Augmenter tube inspection G-3 49_44_2 Horizontal tail rework G-4 49- 45-2 Throttle reverse stop rework G-4 50- 13-1 Aileron hinge bracket G-5 50-19-2 Rudder tub bracket G-5 50-36-1 Nose strut cylinder G-5 50- 52-1 Hamilton Standard 2H17 blades A P " i 1 51- 5-1 Engine power measurement A E o 51-28-1 F i r e protection modifications G-6 52- 11-2 Steel nacelle facings G-7 52- 14-2 Propeller reversing rework G-7 53-5-1 Curtiss propeller reverse circuit A P - 5 53-23-1 Nose landing gear clutch plate G-8 54- 1-2 Hamilton Standard propeller reversing system __ AP-12 55- 15-2 Fire resistant propeller feathering lines G-8 55- 18-1 Propeller reverse protective device G-9 56- 4-2 Nacelle fire protection G-9 56-8-1 Curtiss C632S, C634D, C634S propellers AP-7 56-18-1 Electrical power system rework G-10 56-20-4 F i r e protection rework G-10 56-24-1 Propeller feathering line rerouting G-10 56- 24-2 Fuel mixture control G - l l 57- 3-1 Landing gear fitting inspection G-12 57_14_1 Landing gear pivot shaft sleeve G-12 58-6-1 Landing gear axle G-14 58-25-1 Elevator torque tube rivets G-14 59- 1-1 F i r e detector system rework G-14 59-2-1 F i r e protection modifications G-15 59-4-2 DV window stop G-16 340 T C 6A6 54-1-2 Hamilton Standard propeller reversing system AP-12 55-3-1 Elevator servo tab inspection G-8 55-15-2 Fire resistant propeller feathering lines G-8 55- 18-1 Propeller reverse protective device G-9 56- 4-2 Nacelle fire protection G-9 56-18-2 Hot weather oil flow G-10 56-20-4 Fire protection rework 56-24-1 Propeller feathering line rerouting G-10 56-24-2 Fuel mixture control G - l l 56- 27-1 Elevator tab rods G - l l 57- 12-5 Elevator spar cracks G-12 57_14_1 Landing gear pivot shaft sleeve G-12 58- 1-3 Fuel mixture control G-13 59- 1-1 Fire detector system rework G-14 59-2-1 Fire protection modifications G-15 59- 4-2 DV window stop G-16 60- 14-1 Landing gear actuating cylinder rod G-16 62-27-6 Rear service door G-22 440 T C 6A6 56-20-4 F i r e protection rework — G-10 56-24-1 Propeller feathering line rerouting G-10 56-24-2 Fuel mixture control G - l l 56-27-1 Elevator tab rods _ G - l l 58- 1-3 Fuel mixture control G-13 59- 1-1 Fire detector system rework G-14 59- 4-2 DV window stop G-16 60- 14-1 Landing gear actuating cylinder rod G-16 22 (880) T C 4A27 61-7-1 Foreflaps G-17 61- 10-2 Engine mount fitting G-17 61-13-1 Limiter replacement G-17 61-14-3 Rudder spring cartridge G-18 61-14-4 Rudder flight tab rod G-18 Civil Model A p p r o v a l N o . A p p l i c a b l e Directives A d d e d Directives G E N E R A L D Y N A M I C S CORP.—Continued 61-22-4 Cabin pressurization static system G-18 SI-23-2 Engine starter warning indicator G-19 62— 7-1 Rudder and elevator balance board trunnions G-19 62-12-3 Flap carriage support fittings G-20 62-18-1 Rudder tab balance weights G-20 62-20-2 Aileron override spring G-21 62-21-2 Rodder pedal adjustment G-21 22M (880) T C 4A27 61-25-2 Engine starter warning indicator G-19 62-7-1 Rudder and elevator balance board trunnions G-19 62-12-3 Flap carriage support fittings G-20 62-18-1 Rudder tab balance weights G-20 62-20-2 Aileron override spring G-21 62-21-2 Rudder pedal adjustment G-21 30 T C 4A30 62-18-1 Rudder tab balance weights G-20 62-18-2 Pylon forward engine thrust beacon channels -_ G-20 62-20-2 Aileron override spring G-21 62-23-4 Main landing gear door G-21 G L O B E (See U N I V E R S A L A I R C R A F T ) G O O D Y E A R A I R C R A F T C O R P , Akron, Ohio G A - 2 B T C 784 50-47-1 Sensenich propeller blades AP-27 GRUMMAN A I R C R A F T E N G I N E E R I N G C O R P , Bethpage, L I , N.Y. G-21, G-21A T C 654 G - 4 4 . G - 4 4 A G-73 T B F , T B M Series 159 164 T C 7 3 4 T C 783 L T C 8 T C 1A17 T C 1A16 46-38-1 Vacuum system tubing G-29 49- 16-1 Fnel tank baffles G-29 50- 15-1 Mixture control rework G-29 53-21-2 Horizontal stabilizer strut G-30 53- 24-1 Stabilizer strut terminals G-30 48-31-1 Stabilizer strut terminals G-29 54- 26-1 Landing gear valve placard G-30 58-4-2 Split ring replacement . AP-22 48-3-4 Landing gear hose guides G-29 58-19-1 Fire resistant hose G-30 62-26-2 Wing structure in the integral tanks G-31 62-8-7 Aileron control cable modification G-30 H E U O A I R C R A F T C O R P , Norwood, Mass. H-391B T C IAS 36-22-2 Wing attachment washers H - l 57-25-2 Fin spar inspection H - l 58- 1-4 Aileron bellcrank inspection H - l 58- 25-4 Fin hinge attachment H - l 59- 17-5 Horizontal tail spar fitting H - l 59-17-6 Pulley guards H-2 62-12-5 Engine oil breather tube H-2 H-395 T C 1A8 58-25-4 F i n hinge attachment H - l 59-17-5 Horizontal tail spar fitting H - l 59-17-6 Pulley guards H-2 62-12-5 Engine oil breather tube H-2 H I L L E R H E L I C O P T E R S , Palo Alto, Calif. UH-12, H T C 6H1 51-20-3 Collective pitch ballast system bracket H-3 UH-12A, 52-1-8 Collective pitch incidence arms H-3 UH-12B 52-29-1 T a i l rotor drive slip joint assembly inspection H-3 53-9^3 Outboard tension bar pins H-4 53-12-1 Horizontal stabilizer spar H-4 53-24-2 Tail rotor pitch change rod H-4 55- 19-1 Tail boom rear bulkhead H-5 56- 9-1 Tail rotor torsion bar H-5 56-27-2 Engine mount welds H-6 58-2-3 Carburetor mixture control removal H-6 5S-24-2 Tail rotor blade skin cracks H-7 C i v i l Model A p p r o v a l N o . A p p l i c a b l e D i r e c t i v e s Pag-e N o . A d d e d D i r e c t i v e s H I L L E R H E L I C O P T E R S — C o n t i n u e d 59-5-5 Cyclic control scissor casting H-7 59-25-3 Wobble plate screws H-7 62-3-1 Cam follower assembly H-9 UH-12C H T C 6H2 58-2-3 Carburetor mixture control removal H-6 58-24-2 T a i l rotor blade skin cracks H-7 59-5-5 Cyclic control scissor casting H-7 59-25-3 Wobble plate screws H-7 UH-12D H T C 4H10 59-5-5 Cyclic control scissor casting H-7 59-25-3 Wobble plate screws H-7 60- 7-5 Main rotor blade fork H-7 60- 17-2 Main rotor blade H-8 61- 5-4 Main transmission H-8 62-6-3 Transmission and lubrication system modifica- tion H-9 TJH-12E H T C 4H11 59-25-3 Wobble plate screws H - 7 60-7-5 Main rotor blade fork H-7 60- 17-2 Main rotor blade H-8 61- 5-4 Main transmission H-8 62- 6-3 Transmission and lubrication system modifica- tion H-9 HOWARD (See J O B M A S T E R ) H U G H E S T O O L CO., Aircraft Division, Culver City, Calif. 269A T C 4H12 62-11-4 Operating limitations H-13 62-14-3 T a i l rotor blade H-13 62-21-3 Modification H-13 J O B M A S T E R CO., Seattle 4, Wash. DGA-18K T C 739 46-6-2 Kinner master rod replacement AE-21 46-6-3 Kinner master rod knuckle pin AE-21 K A I S E R F L E E T W I N G S , INC., Bristol, Pa. F - 5 A T C 680 49-32-1 Engine support struts K - l F ^ O l 2-540 49-32-1 Engine support struts K - l K A M A N A I R C R A F T CORP., Bloomfield, Co n. K-240 T C 1H3 59-10-6 Wood cheek plate rotor blades K - 3 L A K E A I R C R A F T CORP., Sanford, Maine C - l T C 1A13 57-6-1 Landing gear lock L - l 57-13-1 Engine strut fittings L - l 59-12-5 Plastic control surface locks L - l 59-15-2 Throttle handle rivets L - l 59-17-4 Wing spar attaching bolts L - l C-2 T C 1A13 59-12-5 Plastic control surface locks L - l 59-15-2 Throttle handle rivets L - l 59- 17-4 Wing spar attaching bolts L - l 60-22-1 Engine mount L - 2 L O C K H E E D A I R C R A F T CORP., Burbank, Calif. 18 T C 723 46-13-1 Landing gear hose ferrules L - 3 46-13-2 Dual fuel system L - 3 46- 13-3 Hopper oil tanks L - 3 47- 43-10 Fire extinguisher bottle rework L-10 47- 43-H Elevator push-pull rod bolts L-10 48-42-2 F i r e prevention modification L-15 52-8-1 Fuel tank seal L-17 55-15-3 F i r e resistant propeller feathering lines L-21 57- 23-1 Vacuum system fusible plug L-24 58-8-3 C B fire extinguisher system L-26 58—11-2 Landing gear drag strut yoke L-26 58- 11-3 Rudder cable attachment L-27 59- 16-2 Stabilizer spar L-30 C i v i l Model A p p r o v a l N o . A p p l i c a b l e Directives A d d e d Directives L O C K H E E D A I R C R A F T CORP.—Continued 60- 21-2 Carburetor preheat modification L-39 61-22-6 Elevator control mast castings L-44 PV-1 L T C 13 58-8-3 C B fire extinguisher system L-26 58- 11-3 Rubber cable attachment L-27 59- 16-2 Stabilizer spar L-30 61-4-4 Landing gear drag stmt plates L-42 61-21-6 Landing gear lower drag strut L-44 61-22-6 Elevator control mast castings L—14 P V - 2 L T C 13 59-16-2 Stabilizer spar L-30 49-46 T C 763 47-10-2 Elevator tab control circuit breaker L - 4 47-10-3 Rudder and elevator circuit breakers L - 4 47-10-4 Engine autosyn transmitter jumpers L—4 47-10-5 Landing gear selector valve h-i 47-10-6 Fuel tank shutoff valves L - 4 47-10-7 Landing gear down line restriction valve L—4 47-10-8 Elevator booster shifter horn L - 4 47-10-9 Oil line cover plates - L - 4 47_10-io Soundproofing around voltage regulators L - 5 47-10-11 Fire detector replacement L - 5 47-10-13 Fire resistant firewall fittings L - 5 47-10-14 Fuel pump flexible hose L - 5 47-10-15 Requirements for recertification Lockheed 49 — L - 5 47-10-16 Conversion of 49-51 to 49-46 L - 6 47-10-17 Cabin supercharger rework L - 6 47-10-18 Fire resistant fuel line L - 7 47-10-19 Cabin heater fuel solenoid valve L - 7 47-10-20 Alcohol tank replacement L - 7 47-10-21 Landing gear torque links , L - 7 47-10-22 Fire extinguisher selector valve washer L - 7 47-10-23 Bathtub fitting steel nuts L - 7 47-10-24 Cross-feed relief valve L - 7 47-10-25 Generator mounting bolts L - 8 47-10-26 Flap drain line rerouting L - 8 47-10-27 Fuel tank vent outlets l * - * 47-10-28 Elevator cable seal holes L - 8 47-10-29 Aileron drain holes k-§ 47-10-30 Fuel tank surge bos flapper valves L - 8 47-10-31 Landing gear torque arm L - 8 47-10-32 Cpper wing surface inspection L - 8 47-10-33 Cylinder barrel replacement L - 8 47-10-34 Exhaust system ball joint rework L - 9 47-10-36 Wing leading edge rework L - 8 47-10-3* Landing gear fulcrum bolts L-10 47-10-38 Landing gear drag link cross-head t JS 47-10-39 Aileron trailing edge T i n 47-49-1 Rudder trim tab control relocation L - l u 47-49-2 Nose gear extension line clearance Lr-11 47-49_3 Rudder torque tube attachments L - l l 47-49-4 Rudder pedal pins L - l l 47-49-5 Control cable housing fasteners L - l l 47-49-6 Oil pressure gage placard 7~ 47-49-7 Drag link bolt replacement L - l l 47-49-S Aileron rib and skin inspection L - l l 47-49-9 Wing attaching pins L-12 47-43-10 Astrodome rework T~Vk 47-43-U Fuel system inspection L-12 47-49-12 Landing gear doors T~iZ 48- 12-4 Fire prevention requirements L-13 48-18-3 Cabin supercharger driveshaft L-13 48-18-4 Supercharger bearing thermocouple L-13 48-19-2 Elevator lever 4S-27-1 Fuel dump standpipes L-14 48- 33-1 Fuel system placards 49-49-1 PB-10 automatic pilot L-16 49-52-1 Elevator booster system rework L-16 52-12-3 Bulkhead ring and bracket L-17 52- 13-2 Propeller reversing rework , L-18 53- 15-2 Wing lower front spar cap L-20 54-22-1 Flexible hose replacement L-20 54- 24-3 Landing gear actuating cylinder L-21 55-15-6 Cooling air system rework L-22 C i v i l Model A p p r o v a l N o . A p p l i c a b l e Directives Page N o . A d d e d Directives L O C K H E E D A I R C R A F T CORP.—Continued 55-17-1 Flap torque tube bolts L-22 55-23-3 Landing gear downlock spring cylinder assembly. L-22 56- 16-2 Automatic pilot servo brackets L-23 56- 25-4 Flap symmetry L-23 57- 3-2 Fuel strainer screen L-24 57- 3-3 Mieronic filter cover L-24 58- 1-5 Wing skin and stringer inspection L-24 58-20-3 Bulkhead corrosion inspection L-27 58-21-1 Bulkhead corrosion inspection L-28 59- 3-2 Landing gear downlock guide L-29 59—7—4 Nose gear bolts L-29 59- 12-2 Bathtub fittings L-29 60- 4-4 Landing gear cylinders L-34 60- 10-4 Fuselage aft pressure bulkhead L-36 61- 19-3 Elevator bolt inspection L-43 61- 24-4 Horizontal stabilizer rear spar L-45 62- 1-2 Main landing gear cylinders L-4G 62-19-2 Main landing gear pistons L-46 62-26-3 Main landing gear crossheads L-48 149-16 T C 763 48-19-2 Elevator lever L-14 48-27-1 Fuel dump standpipes L-14 48-33-1 Fuel system placards L-14 49- 49-1 PB-10 automatic pilot L-16 49-52-1 Elevator booster system rework L-16 52-12-3 Bulkhead ring and bracket L-17 52- 13-2 Propeller reversing rework L-18 53- 15-2 Wing lower front spar cap L-20 54_24-3 Landing gear actuating cylinder L-21 55-15-6 Cooling air system rework L-22 55-17-1 Flat torque tube bolts L-22 55- 23-3 Landing gear downlock spring cylinder assembly. L-22 56- 16-2 Automatic pilot servo brackets L-23 56- 25-4 Flap symmetry , L-23 57- 3-2 Fuel strainer screen L-24 57-3-3 Mieronic filter cover L-24 58- 1-5 Wing skin and stringer inspection L-24 58-20-3 Bulkhead corrosion inspection L-27 58- 21-1 Bulkhead corrosion inspection L-28 59- 3-2 Landing gear downlock guide L-29 59-7-4 Nose gear bolts L-29 59- 12-2 Bathtub fittings L-29 60- 4-4 Landing gear cylinders L-34 60- 10-4 Fuselage aft pressure bulkhead L-36 61- 19-3 Elevator bolt inspection L-43 61- 24-4 Horizontal stabilizer rear spar L-45 62- 1-2 Main landing gear cylinders L-45 62-19-2 Main landing gear pistons L-^6 62-26-3 Main landing gear crossheads L - ^ 8 649-79,649A-79, T C 763 47-49-9 Wing attaching pins L-12 749-79,749A-79 47-49-11 Fuel system inspection L-12 47-49-12 Landing gear doors L—12 48- 12-3 F i r e prevention requirements L-18 48-19-2 Elevator lever L-14 48-26-1 Engine speed restrictions—Curtiss propellers — L-14 48-27-1 Fuel dump standpipes L-14 48-27-3 Propeller hub peening L-14 48- 33-1 Fuel system placards L-14 49- 5-1 Curtiss 85CMC2-0 propeller blades L-15 49-41-1 Curtiss C632S-A propeller hub L-16 49-49-1 PB-10 automatic pilot L-16 49-52-1 Elevator booster system rework L-16 52-12-3 Bulkhead ring and bracket L-17 52- 13-2 Propeller reversing rework L-18 53-5-1 Curtiss propeller reversing circuit 53- 15-2 Wing lower front spar cap L-20 54- 22-1 Flexible hose replacement L-20 54- 24-3 Landing gear actuating cylinder L-21 55- 15-6 Cooling air system rework L-22 55-17-1 Flap torque tube bolts L-22 55-23-3 Landing gear downlock spring cylinder assembly- L-22 56- 8-1 Curtiss C632S, C634D, C634S propellers AP-7 56-16-2 Automatic pilot servo brackets L-23 C l r i l Mode] A p p r o v a l N o . A p p l i c a b l e Directives Added Directives L O C K H E E D A I R C R A F T CORP.—Continued 56- 25-4 Flap symmetry — - ^-23 57-3-2 Fuel strainer screen OA 57-3-3 Micronic filter cover I ™ * 58- 1-5 Wing skin and stringer inspection L-24 58-20-3 Bulkhead corrosion inspection — L-2 » 58-21-1 Bulkhead corrosion inspection L-28 59- 3-2 Landing gear downlock guide L-29 59-7-1 Curtiss propeller reducer spline wear AP-7 59-7-4 Nose gear bolts L-29 59-12-2 Bathtub fittings L - 2 9 59- 26-7 Door latch brackets L-32 60- 4-4 Landing gear cylinders L-34 60- 10-4 Fuselage aft pressure bulkhead L-36 61- 19-3 Elevator bolt inspection L-44 61-24-4 Horizontal stabilizer rear spar L-^6 62- 1-2 Main landing gear cylinders , L-45 62-19-2 Main landing gear pistons . L-46 62-26-3 Main landing gear crossheads L - ^ 8 1049 Series T C 6A5 54-22-1 Flexible hose replacement L-20 54-24-2 Wing main beam web inspection x} 54- 24-3 Landing gear actuating cylinder L-21 55-5-2 Rework of Hamilton Standard hub barrels and spiders A p - 1 2 55-15-6 Cooling air system rework TOO 55-17-1 Flap torque tube bolts TOO 55-23-2 Outer wing main beam web 55-23-3 Landing gear downlock spring cylinder assembly- L - 2 2 56-8-1 Curtiss C632S. C634D, C634S propellers AP-7 56-16-2 Automatic pilot servo brackets L-23 56-25-4 Flap symmetry J™* 56-26-1 Main relay bos rework L - 2 3 57-3-2 Fuel strainer screen L-24 57-5_3 Micronic filter cover L-24 58- 1-5 Wing skin and stringer inspection L-24 58-21-1 Bulkhead corrosion inspection L-28 59- 3-2 Landing gear downlock guide V T ? 9 , 59-7-1 Curtiss propeller reducer spline wear AP-7 53-7-4 Nose gear bolts L-29 59-12-2 Bathtub fittings L - 2 9 59-18-4 Wing spar web reinforcement L-30 59- 26-7 Door latch brackets L-32 60- 5-2 Fire protection L-35 60-8-4 Rudder torque tube L-35 60-10-4 Fuselage aft pressure bulkhead L-36 60- 10-6 Landing gear drag strut L-37 61- 14-5 Landing gear doors L ^ 3 61-19-3 Elevator bolt inspection L-43 61-24-4 Horizontal stabilizer rear spar L-45 62- 1-2 Main landing gear cylinders L-45 62-16-3 Wing rear spar upper cap L-46 62-26-3 Main landing gear crossheads L-48 62-27-7 Wing front spar lower cap and web L-49 1649A T C 4A17 58-13-3 Aileron control valve modification L-27 58-21-1 Bulkhead corrosion inspection L-28 59- 20-2 Fuel use placard and flame arrestors L-31 60-8-4 Rudder torque tube L-35 60- 10-4 Fuselage aft pressure bulkhead L-36 61- 3-4 Fuel vent system Ir-il 62-21-4 Wing lower" skin 188 Series T C 4A22 53-21-2 Wing leading edge screws L-31 59-25-4 Generator feeder wires L-32 60- 1-5 Propeller deicing L-32 60-1-6 Wing surface planks L-33 60-3-5 Tail pipe cowl 60-4-3 Lord engine mounts L-33 60-9-3 Operating restrictions L - 3 6 60-10-5 Fuel pressure relief valve L-37 60-11-3 Cowl longerons L-38 60-13-3 Fueling procedure check L-38 60-17-1 Aeroproducts propellers AP-1 60-20-3 Electrical system L-39 60-20-4 Lavatory drains L-39 L O C K H E E D A I R C R A F T CORP.—Continued 60-24-1 Fuel pressure relief valve L-40 60-25-2 Aileron counterweight L - 4 0 60-26-4 Swirl straightener rework-sugar scoop L-41 60-26-5 Elevator counterweight and boost control valve- L-41 61-9-1 Elevator booster hydraulic damper housing L-42 61-15-4 Safety belt grommets L-43 61- 21-5 Compass circuit breakers L - 4 4 62- 26-4 Elevator balance weight arms L-48 L U S C O M B E (For Model 8 Series, See S I L V A I R E ) (For Model 11 Series, See T E M C O ) M A R T I N CO. ( G L E N N L . ) , Baltimore, Md. 202 T C 795 47-47-5 Stewart-Warner 921B heaters M-l 47-47-6 Engine accesory section inspection M-l 48- 15-1 Automatic pilot cable M-l 48-15-2 Oil tank vent hose M-l 48-17-2 Cargo compartment insulation M-l 48-22-1 Water-alcohol injection system AE-23 48-24-1 Rudder hinge brackets M-l 48-43-1 Hydraulic system rework M-2 48-50-3 Control system guards M-2 49- 15-2 Wing modifications M-2 50- 41-2 Brake system hydraulic fuse M-3 50-48-1 Nose gear cam M-3 50- 52-1 Hamilton Standard 2H17 blades AP-11 51- 3-2 Landing gear crankshafts M-3 51_4_1 Fuel vent line check valve M-3 51-11-1 Modification Board items M-3 51-13-1 Wing top cover splice angles M-3 51-19-4 Modification Board items M-4 51-20-2 Modification Board items M-5 51-24-2 F i n inspection M-5 51- 25-2 Circuit breaker cover M-6 52- 2-3 Oxygen bottle relocation M-6 52-4-1 Fuel line vent M-6 52-4-2 Inverter control protection M-6 52-4-3 Pressure gage M-7 52-4-4 Lighting circuit protection M-7 52-4-5 Oil quantity indicator M-7 52-4-6 Relocation cabin heater lights and switch M-7 52-4-7 Heater control modification M-7 52-4-8 Anti-icing heater controls M-7 52-5-2 Center wing spar rework M-7 52- 15-2 Propeller reversing rework M-8 53- 20-1 Hamilton Standard propeller pitch stop M-10 54- 1-2 Hamilton Standard propeller reversing system-, AP-12 54-6-2 Wing scarf spice bushing M-ll 54- 8-1 Xose gear piston and fork assembly M-12 54_24-4 Landing gear trunnion fittings M-13 55- 16-2 Fire resistant propeller feathering lines M-14 55-20-3 Nose gear steering shaft M-14 56- 9-2 Rudder torque tube rivets M-14 57-3-4 Zone I I I fire protection M-15 57- 6-2 Engine mount stud M-16 58- 17-3 Propeller feathering line rerouting M-16 59- 20-3 Spar cap flange inspection M-17 59- 26-5 Wing inspection M-17 60- 10-7 Nose gear torque arm M-17 61- 1-2 Landing gear torque arm M-18 202A T C 795 50-48-1 Nose gear cam M-3 50- 52-1 Hamilton Standard 2H17 blades AP-11 51-3-2 Landing gear crankshafts M-3 51-11-1 Modification Board items M-3 51-13-1 Wing top cover splice angles M-3 51-19-4 Modification Board items M - l 51-20-2 Modification Board items M-5 51- 25-2 Circuit breaker cover M-6 52- 2-3 Oxygen bottle relocation M-6 52-4-2 Inverter control protection M-6 52-4-3 Pressure gage M-7 52-4-4 Lighting circuit protection M-7 C h i t Model A p p r o v a l S o . A p p l i c a b l e Directives A d d e d Directives M A R T I N C O . ( G L E N N L.)—Continued 52-4-5 Oil quantity indicator M-7 52-4-6 Relocation cabin heater lights and switch M-7 52-4-7 Heater control modification - — M-7 52-4-8 Anti-icing heater controls M-7 52-5-2 Center wing spar rework M-7 52- 16-1 Propeller reversing rework M-9 53- 20-1 Hamilton Standard propeller pitch stop . — M-10 54- 1-2 Hamilton Standard propeller reversing system — AP-12 54-S-l Nose gear piston and fork assembly „ — M-12 54- 24-4 Landing gear trunnion fittings ^ — M-13 55- 16-2 Fire resistant propeller feathering lines M-14 55-20-3 Nose gear steering shaft M-14 56- 9-2 Rudder torque tube rivets - — M-14 56-24-2 Fuel mixture control , — M-14 57-3-4 Zone I I I fire protection - — M-15 57-6-2 Engine mount stud M-16 5S-17-3 Propeller feathering line rerouting M-16 59-20-3 Spar cap flange inspection M-17 59- 26-5 Wing inspection . M-17 60- 10-7 Nose gear torque arm M-17 61- 1-2 Landing gear torque arm M-18 404 T C 1A7 52-16-2 Propeller reversing rework M-10 54-1-2 Hamilton Standard propeller reversing system — AP-12 54-8-1 Nose gear piston and fork assembly M-12 54- 12-1 Landing gear oleo drag struts M-12 55- 16-2 Fire resistant propeller feathering lines M-14 55-20-3 Nose gear steering shaft M-14 56- 9-2 Rudder torque tube rivets 31-14 56- 24-2 Fuel mixture control M-14 57-3-4 Zone I I I fire protection M-15 574V-2 Engine mount stud M-16 SS-17-3 Propeller feathering line rerouting M-16 59-20-3 Spar cap flange inspection M-17 59- 26-5 Wing inspection M-17 60- 7-6 Landing gear lock plunger M-17 60- 10-7 Nose gear torque arm M-17 61- 1-2 Landing gear torque arm M-18 M c C L I S H , THOMAS 59 Summit S L , Sharon. Pa. B85C T C 715 47-40-2 Continental C75 and C85 piston pins A E - 9 M E Y E R S A I R C R A F T C O , Tecumseh, Mich. OTW-160 T C 736 46-6-3 Kinner master rod knuckle pin AE-21 M O N O C O U P E A I R P L A N E & E N G I N E CORP., Melbourne, F l a . 90AL-115 T C 306 50-47-1 Sensenich propeller blades AP-27 MO O N E Y A I R C R A F T , INC., Kerrville. Tex. M-18 Series T C 803 50-1-1 Engine mount reinforcement M-25 51-3-1 Fuel line rework M-25 53-17-1 Control stick boot M-25 53-24-3 Landing gear bellcrank M-25 59-22-3 Inspection of welds and wood for deterioration. M-27 Mark 20 T C 2A3 57-10-1 Landing gear bellcrank bracket M-25 5S-23-3 Aileron counterbalance brace M-26 59-6-3 Hinge hearing brackets M-26 59-9-1 Empennage attachment brackets M-27 53-14-2 Fuel selector valve M-27 61-22-7 Fuel and oil pressure gage lines M-29 Mark 20A T C 2A3 5S-19-3 Carburetor air bos rework M-25 59-6-3 Hinge bearing brackets M-26 59-9-1 Empennage attachment brackets M-27 59-11^3 Exhaust heater inspection M-27 59-14-2 Fuel selector valve M-27 59-25-6 Carburetor alternate air source M-29 61-22-7 Fuel and oil pressure gage lines M-29 Mark 20B T C 2A3 61-22-7 Fuel and oil pressure gage lines M-29 N A V A L A I R C R A F T F A C T O R Y , Philadelphia, Pa. N3N-3 T C 2-569 60-3-6 Control stick N - l NAVION, Division of Tusco Corp., P. O. Box 3126, Galveston, Tex. Navion Series T C 782 47-11-1 Rudder-nose gear steering bellcrank N-3 47-11-2 Hartzell propeller blade rework N-3 47-21-4 Fuel scupper drain line N-3 47-21-5 Propeller control friction lock N-3 47-21-6 Valve spring retainer spacers N-3 47-21-7 Carburetor air intake scoop filler strip N-3 47-21-8 Generator terminal stud insulator N-4 47-21-9 Hydraulic system modifications N ^ 47-21-10 Propeller guide pin dowel N-4 47—31—1 Hydraulic cylinder lines N-4 47-31-2 Fire-resistant carburetor vapor return line N-4 47-31-3 Fuel drain cock N-4 48- 6-3 Hartzell propeller blade inspection N-5 48-8-3 Fuel valve control support clip N-5 48-29-1 Fuel pump drain N-5 49- 5-3 Continental engines bearing inserts N-5 49-9-2 Booster pump rework N-6 49-11-1 Carter fuel pump rework N-6 49-12-2 Romec fuel pump vent plugs N-6 49- 28-1 Product Techniques propeller spinner N-6 50- 5-2 Shakespeare controls AQ-45 50-10-2 Air intake hose N-7 50-24-1 Landing gear control lever N-7 50- 32-1 Oil pump rework AE-11 51- 7-1 Throttle housing N-7 51-24-1 Exhaust valve seats A E - 5 52-8-2 Carburetor ducting N-8 52-24-1 Aileron control chain guard N-8 52- 26-1 Stabilizer spar web N-8 53-3-1 Hartzell propeller vibration N-8 53-8-1 Horizontal stabilizer fitting N-8 54- 18-1 Wing-to-fuselage attachment N-9 56-3-3 Wing rear spar fitting inspection N-10 56-27-4 Engine cooiing kit removal N - l l 59-6-4 Hydraulic actuating cylinders N - l l 61- 12-4 Landing gear retract link N - l l 62- 3-3 Landing gear selector valve fitting N-12 Twin Navion T C 2A1 55-1-1 Fuselage frame cracks N-10 2 A 2 55-6-1 Fuselage fuel tank enclosures N-10 61- 12-4 Landing gear retract link N - l l 62-3-3 Landing gear selector valve fitting N-12 62-14-4 Nose gear retract link N-12 N O O R D U Y N N O R S E M A N A I R C R A F T L T D . , Montreal, Canada Army UC-64, 2-578 46-23-5 Horizontal stabilizer drain holes N-13 -64A, -64B 46-23-6 Surface combustion fuel burning heater N-13 48-49-2 Float wire brace N-13 N O R T H A M E R I C A N A V I A T I O N , INC., Inglewood, Calif. Army BC-1A, 2-575 46-11-1 Landing gear retracting strut attachment sup- AT-6, AT-6A, port channel , — - — N-15 - 6 B . - 6 C ; Navy 46-17-1 Flap control universal joint pins — N-15 SNJ-2, -3, -4 46-46-2 Elevator stop _ .. — N-15 49-7-2 Fuel system placard N-15 50-9-1 Stabilizer spar fittings and shims N-16 50-38-1 Fuselage structure corrosion N-16 T-28A R T C 30 58-22-2 Landing gear trunnion shaft - -. — - N-16 59-12-7 Wright R-130O-1A engines _ _ A E - 3 9 61-5-5 Wright R-130O-1A engines -. - N-17 N O R T H E R N (See D O W N E R ) N O R T H W E S T E R N A E R O N A U T I C A L C O R P , Holman Field, St. Paul, Minn. Porterfleld T C 720 46—36-1 Continental piston pins A E - 9 CP-65, CS-65 Porterfleld 75-C T C 611 46-36-1 Continental piston pins A E - 9 P I A G G I O & C , Genoa, Liguria, Italy P.136-L1 T C 813 57-8-4 Hartzell propeller safety link bar AP-22 58- 17-4 Water rudder modification P - l 59-23-1 Water rudder cable guard P - l 61-26-3 Fuel vent lines P - l P.136-L2 T C 813 57-8-4 Hartzell propeller safety link bar AP-22 58- 17-4 Water rudder modification P - l 59-22-1 Oil breather lines P - l 59-23-1 Water rudder cable guard P - l 60- 23-3 Oil lines P - l 61- 26-3 Fuel vent lines P - l P.166 T C 7A4 63-16-4 Frame angle bar P-2 P I P E R A I R C R A F T C O R P , Lock Haven, Pa. A E - 1 . H E - 1 T C 725 46-36-1 Continental piston pins A E - 9 58-10-2 Wing lift strut fork P-13 J - 3 A T C 660 47-50-3 Canvas seat inspection P^4 52-7-3 Lift strut rework P-7 58-1-7 Control system turnbuckles P-12 58-12-2 Aileron hinge brackets P-13 J3C-10, -50, T C 691 47-50-3 Canvas seat inspection P-4 -50S 47-50-5 Float wirepull fitting AQ-27 52-7-3 Lift strut rework P-7 58-1-7 Conrrol system turnbuckles P-12 5S-I2-2 Aileron hinge brackets P-13 J3C-65, J3C-65S T C 691 46-36-1 Continental piston pins A E - 9 46-37-1 Fuel strainer gasket P-3 46- 37-2 Fuel strainer position P-3 47-40-2 Continental C75 and C85 piston pins A E - 9 47-50-3 Canvas seat inspection P-4 47-50-5 Float wirepull fitting AQ-27 47-50-6 Shock strut cracks P-4 49- 14-1 Elevator connector tube fitting P-5 50- 5-1 Nicopress sleeve rework P-6 52-7-3 Lift strut rework P-7 58-1-7 Control system turnbuckles P-12 58-12-2 Aileron binge brackets P-13 J3F-50, -50S, T C 692 47-50-3 Canvas seat inspection P-4 -60, -60S, -65, 49-14-1 Elevator connector tube fitting P-5 -60S 52-7-3 Lift strut rework P-7 58-1-7 Control system turnbuckles P-12 58-12-2 Aileron hinge brackets P-13 J 3 L , J 3 L - S , T C 698 47-50-3 Canvas seat inspection P - l J3L-65, J3L-65S 49-14-1 Elevator connector tube fitting P-5 52-7-3 Lift strut rework P-7 58-1-7 Control system turnbuckles P-12 58-12-2 Aileron hinge brackets P-13 J3P T C 695 47-50-3 Canvas seat inspection P - l 52-7-3 Lift stmt rework P-7 58-1-7 Control system turnbuckles P-12 58-12-2 Aileron binge brackets P-13 J4, J4A, J 4 A - S T C "03 46-36-1 Continental piston pins A E - 9 58-10-2 Wing lift strut fork P-13 61-6-6 Fabric reinforcement P-17 J 4 E T C "40 46-36-1 Continental piston pins A E - 9 47-40-2 Continental C79 and C85 piston pins A E - 9 58-10-2 Wing lift stmt fork P-13 61-6-6 Fabric reinforcement P-17 J5A, J5A-80 T C 725 46-36-1 Continental piston pins A E - 9 47-40-2 Continental C75 and C85 piston pins A E - 9 58-1-7 Control system turnbuckles P-12 58-10-2 Wing lift strut fork P-13 61-6-6 Fabric reinforcement P-17 P I P E R A I R C R A F T CORP.- J5C T C T25, 2-563 P A - l l T C 691 PA-12 T C 780 PA-14 PA-15 PA-16 PA-17 PA-18 T C 797 T C 800 T C 1A1 TO 805 T C 1A2 PA-18 R T C 7 (Restricted) PA-19 PA-20 T C 1A2 T C 1A4 -Continued 46- 36-1 Continental piston pins A E - 9 58-1-7 Control system turnbuckles P-12 58-10-2 Wing lift strut fork P-13 61-6-6 Fabric reinforcement P-17 47- 40-2 Continental C75 and 085 piston pins A E - 9 47-50-5 Float wirepull fitting AQ-27 47- 50-6 Shock strut cracks P-4 48- 3-3 Header tank installation P-5 49- 14-1 Elevator connector tube fitting P-5 50- 5-1 Nicopress sleeve rework P-6 52-7-3 Lift strut rework P-7 58-12-2 Aileron hinge brackets P-13 46-36-2 Airscoop rework P-3 46-36-3 Muffler brace P-3 46- 37-1 Fuel strainer gasket P-3 47- 22-3 Landing gear tie strap P-3 47-47-1 Landing gear reinforcement P-3 47-47-2 Battery box insulating spacer P-4 47-47-3 Seaplane fuselage inspection P-4 47_47_4 Starter solenoid replacement P ^ 48- 1-2 Cowl support braces P - 5 48-13-3 Battery hold down brackets P-5 4S-13-4 Fuse-clip attachment P-5 48- 14-1 Fuel line elbow P-5 49- 14-1 Elevator connector tube fittings P-5 49- 27-2 Aileron bellcrank castings P-6 50- 5-1 Nicopress sleeve rework P-6 50- 47-1 Sensenich propeller blades AP-27 51- 21-2 Aileron hinge brackets P-6 58-10-2 Wing lift strut fork P-13 60- 1-7 T a i l brace wires P-15 61- 6-6 Fabric reinforcement P-17 49-27-2 Aileron bellcrank castings P-6 50- 47-1 Sensenich propeller blades AP-27 58-10-2 Wing lift strut fork P-13 60- 1-7 Tail brace wires P-15 61-6-6 Fabric reinforcement P-17 50-23-1 Shock strut fittings P-6 58-12-2 Aileron hinge brackets P-13 61_6-6 Fabric reinforcement P-17 50- 47-1 Sensenich propeller blades AP-27 51- 23-3 Battery box insulation P-7 57-22-1 F i r e prevention rework P-12 58- 10-2 Wing lift strut fork P-13 5S-12-2 Aileron hinge brackets P-13 61-6-6 Fabric reinforcement P-17 50- 23-1 Shock strut fittings P-6 58-12-2 Aileron hinge brackets P-13 61-6-6 Fabric reinforcement P-17 51- 19-2 Oil radiator hose P-6 53-4-1 Control stick attachment P-7 53- 24-4 Fuel-hydraulic lines P-8 54- 19-1 Brake line cover plate P-8 58- 10-2 Wing lift strut fork P-13 59- 10-8 Gas tank cap vent P-14 60- 10-8 Fuel selector valve . P-17 61- 16-5 Control cable replacement P-18 62-2-5 Rudder cable attachment lug P-19 54-19-1 Brake line cover plate P-8 58- 10-2 Wing lift strut fork P-13 59- 10-8 Gas tank cap vent P-14 60- 10-8 Fuel selector valve P-17 61- 16-5 Control cable replacement P-18 62- 2-5 Rudder cable attachment lug P-19 58-10-2 Wing lift strut fork P-13 50- 47-1 Sensenich propeller blades AP-27 51- 19-2 Oil radiator hose P-7 51-23-3 Battery box insulation P-T 53- 24-4 Fuel-hydraulic lines P-8 54- 2-2 Federal ski rigging AQ-29 C i v i l Model A p p r o v a l N o . A p p l i c a b l e Directives Page N o . A d d e d Directives P I P E R A I R C R A F T CORP.—Continued 57- 22-1 Fire prevention rework P-12 58- 10-2 Wing lift strut fork P-13 58- 16-1 Cigar lighter fuse P-13 59- 10-8 Gas tank cap vent P-14 60- 1-7 Tail brace wires P-15 65-10-8 Fuel selector valve P-17 61- 6-6 Fabric reinforcement P-17 PA-22 T C 1A6 51-19-2 Oil radiator hose P-6 51-23-3 Battery nos insulation P-7 51-27-3 Nose wheel drain P-7 53-24-4 Fuel-hydraulic lines P-8 55-7-2 Landing gear tube reinforcement P-8 55-8-4 Ignition filter replacement P-8 55-22-3 Fuel tank cap P-9 57-22-1 Fire prevention rework P-12 58- 10-2 Wing lift strut fork P-13 58- 16-1 Cigar lighter fuse P-13 59- 10-8 Gas tank cap vent P-14 60- 1-7 Tail brace wires P-15 60-5-3 Safety belt P-16 60- 10-8 Fuel selector valve P-17 61- 6-6 Fabric reinforcement P-17 61-16-5 Control cable replacement P-18 PA-23 T C 1A10 55-11-2 Thermal relief valves P-8 55-13-1 Idler bellcrank installation P-8 55-14-2 Hydraulic cylinder replacement P-9 55- 21-2 Front wing spar attachment fitting P-9 56- 27-3 Aileron balance weight brackets P-9 57- 1-2 Stabilizer attachment bolts P-9 57-5-3 Elevator push-pull tube P-10 57-10-2 Oil pressure gage line P-10 57-13-8 Antiretraction device P-10 57-13-9 T a i l area inspection P-10 57-19-1 Elevator rod and bearing P - l l 57- 21-1 Rudder trim tab pin P - l l 58- 1-6 Stabilizer attachment fitting P-12 58-4-3 Rudder trim tab adjustment screw P-13 58- 22-3 Goodrich G-3-787 wheel P-13 59- 8-3 Operating limitations placard P-14 60- 3-7 Engine starter solenoid P-15 60-3-8 Fuel control cable and valve P-16 PA-24 T C 1A15 58-25-5 Door latch modification P-13 59-6-5 Nose gear bungee P-14 53-7-5 Oil cooler lines clearance . P-14 59-12-9 Control wheel sprocket stud - P-14 59-13-2 Aileron balance weight P-15 59-26-2 Fuel cell vent tubes P-15 60- 24-3 Fuel vent tubes , P-17 61- 16-6 Fuel selector valve handles , P-18 61- 20-2 Exhaust stack reinforcement P-18 62- 10-3 Aileron counterweight bay rework . P-19 62-26-5 Exhaust system P-20 PA-25 T C 2A8 62-2-6 Wing spar hinge fitting P-19 &2A10 PA-38 T C 2A13 62-19-3 Propeller attach bolts P-20 62-26-6 Exhaust system P-21 P O R T E R F I E L D (See NORTHWESTERN") R E P U B L I C (See D O W N E R ) R Y A N A E R O N A U T I C A L C O , San Diego, Calif. S T - 3 K R T C 749 46-5-1 Front fin spar R-3 46-6-2 Kinner master rod replacement AE-21 46-6-3 Kinner master rod knuckle pin AE-21 51-28-3 Fuel valve placard R-3 S C H L E I C H E R , A L E X A N D E R , Poppenhansen Wasserkuppe, West Germany K7 T C 7G3 61-13-3 Fuselage modification S-1 C i v i l Model A p p r o v a l N o . A p p l i c a b l e Directives Page N o . A d d e d Directives S I K O R S K Y A I R C R A F T , R - 4 B L T C 7 Y R - 6 A , R-6A, L T C 29 HOS-1 S-51 H T C 2 S--52 S-55 T C 1H2 T C 1H4 S-58A, S-58B, T C 1H11 S-58C D I V I S I O N O F U N I T E D A I R C R A F T CORP., Bridgeport, Conn. 47-35-1 Main rotor links rework S-3 47-35-2 T a i l rotor geamox brace S-3 47-51-14 Pinion and ring gear inspection S-5 47-32-15 Control system chain and sprockets S-3 47- 50-8 Vertical hinge pins S-A 48- 17-3 Planet pinion shafts wear S-5 48-18-2 Bevel drive gear splines — S-8 50-8-1 T a i l cone mounting longerons S-6 51-22-1 Gear shaft replacement S-6 51-23-4 Botor link assemblies S-6 56-13-2 Main rotor hub replacement S-9 56-16-3 Main rotor blade inspection S-10 60-13-4 Rotor shank rod S - l l 60-19-1 Component lines S - l l 54-1-3 Fuel strainer screen S-7 54-13-1 Star assembly bolt replacement S-7 54-16-1 Main transmission S-8 54-19-2 Servo safety clip S-8 54- 20-2 Fore and aft transmission support assembly cracks S-8 55-25-4 T a i l cone skin reinforcements S-9 56-16-3 Main rotor blade inspection S-10 56-23-3 Horizontal hinge pin assembly S-10 60-13-4 Rotor shank rod S - l l 57- 19-2 Hydromechanical clutch rollers S-10 59- 16-4 Damper trunnion bolt S-10 60-17-^3 Main rotor blade spar S - l l 60-24-4 Electrical cable S-12 61-1^3 Input bevel gear S-12 62- 15-1 Pylon hinge fittings S-13 S I L V A I R E A I R C R A F T CO., Fort Collins, Colo. 8, 8A, 8B, 8C, T C 694 46-30-1 Control stick horn adjustment screw S-15 8D, 8 E 45-36-1 Continental piston pins A E - 9 (Luscombe) 47-10-40 Rudder control arm reinforcement S-15 47-22-1 Bulkhead reinforcement for seaplanes S-15 47-40-2 Continental C75 and C85 piston pins A E - 7 47- 50-5 Float wirepull fitting AQ-27 48-8-2 Cleveland wheel inspection AQ-17 48-9-3 Kollsman airspeed baffle S-16 48-48-1 Freedman propeller hubs AP-41 48-49-1 Vertical stabilizer spar fitting S-15 49-43-2 Stabilizer spar Inspection S-16 50-37-1 Fuel system modifications Model 8C only S-16 51- 10-2 Control cable inspection S-16 55-24-1 Corrosion inspection S-17 61-3-5 Fuel line interference S-17 62-24-3 Cabin heat system S-18 S M I T H A I R C R A F T CORP., L . B., Miami, F l a . C-46/CW20-T T C 2A5 58-17-2 Horizontal tail inspection C-46 58-17^3 Propeller feathering line rerouting C-46 58-20-1 T a i l wheel retract yoke C-46 59- 7-2 Auxiliary hydraulic pump S-19 60-3-2 Cargo fire protection C-47 60-25-1 Wing bolts C-47 SNOW A E R O N A U T I C A L CO., P. O. Box 222, Olney, Tex. S2A T C 2A9 61-14-6 Control cables S-21 S T I N S O N D I V I S I O N , C O N S O L I D A T E D V U L T E E A I R C R A F T C O R P . Army L - 5 , - 5 B , T C 764 46-31-1 Hinged seat back S-23 -5C, -5D, - 5 E , 46-31-2 Torque tube aft of rear seat S-23 -5B-1 47-50-4 Elevator push-pull tube S-23 A A T C 556 46-6-5 Wing attach fittings S-23 HW-75, 10 T C 709 46-36-1 Continental piston pins A E - 9 46-39-1 Oleo truss wear S-23 10A, 10B T C 783 46-39-1 Oleo truss wear S-23 A p p r o v a l Pagre C i v i l M o d e l N o . A p p l i c a b l e Directives N o . A d d e d Directives S U D A V I A T I O N , Paris l6eme, France S E 3130 T C 7H1 58-14-1 Rotor blade bonding S-25 Alouette I I 58-22-4 Tail rotor drive shaft S-25 59- 5-6 Oilite bearing replacement S-26 60- 11-9 Rotor blades S-26 61- 16-7 Main rotor hubs S-26 61-22-8 Tail rotor gear box bolts S-26 S U P E R I O R A I R C R A F T C O , Culver City, Calif. L C A T C 730 46-4-1 Landing gear throttle stop S-29 46-4-2 Carburetor float needle S-29 46- 36-1 Continental piston pins A E - 9 L F A T C 730 46-4-1 Landing gear throttle stop S-29 V, Y2 T C 778 47-2-7 Landing gear retraction adjustment S-29 47- 2-3 Firewall cover plate S-29 47-2-9 Cabin heater valve box S-29 47-25-1 Fuel srstem rework _ S-29 47-25-2 Wing fillets S-29 47-25-3 Nose gear drag link S-30 47-25-4 Compass illumination S-30 47-25-5 Nose-main gear interconnection tube S-30 47-40-2 Continental C75 and C85 piston pins A E - 9 4S-48-1 Freedman propeller hubs AP-9 50-4-2 Landing gear retraction motor rework S-30 50-47-2 Sensenieh propeller blades S-30 60-24-5 Fuel cells S-31 T A Y L O R C R A F T , I N C Connellsville, Pa. B F , B F S , T C 699 47-16-3 Wing stmt fittings . T - l BF-60, B F S - 6 0 . 50-41-1 Elevator horn bolt T - l B F - 6 5 , B F S - 6 5 , 51-9-3 Fuel shutnff valve clip T - l BF12-65, BFS12-65 B L , B L S , B L - 6 3 , T C 700 47-16-3 Wing stmt fittings T - l B L S - 6 5 , 50-41-1 Elevator horn bolt _. T - l BL12-65, 51-9-3 Fuel shutoff valve clip T - l BLS12-65 DC-65, DCO-65 T C 746 46-36-1 Continental piston pins A E - 9 51-9-3 Fuel shutofT valve clip T - l T E M C O A I R C R A F T C O R P , Dallas, Tex. Luscojibe I I A T C 804 49-40-1 Trim tab horn attachment T - 3 49- 45-1 Landing gear bulkhead reinforcement T - 3 50--32-1 Oil pump rework AE-11 51- 21-3 Rudder hellcrank T - 4 T*MM A I R C R A F T (. 1 R P , Van Nuys, Calif. Navy N2T i ' 1 48-32-1 Throttle quadrant reinforcement _._ T - 5 PT-220-C 48-32-1 Throttle quadrant reinforcement T - 5 T R Y T E K . E . 203 Wall S L , Syracuse 4, N.Y. 65-CA, T C 675 46-36-1 Continental piston pins A E - 9 S-65-CA 47-30-S Seat modification T - 7 65-LA T C 702 47-39-S Sear modification T - 7 U N I V E R S A L A I R C R A F T I N D U S T R I E S , P. O. Bos 5306, Denver 17, Colo. GC-1A, G C - 1 B T C 766 46-23-4 Addition of rivets in wing skin U - l (Formerly 46-33-2 Fuselage bulkhead flange stiffener U - l Globe) ' 46-42-1 Cabin heater valve replacement U - l 47-6-1 Landing gear retraction adjustment U - l 47-6-2 Landing gear retraction placard U-2 47-6-3 Elevator cable collars U-2 47-6-4 Landing gear washers U - 2 47-6-5 Battery vent plugs U-2 47-6-6 Engine breather line U-2 C i v i l Model A p p r o v a l N o . A p p l i c a b l e Directives Page N o . A d d e d Directives U N I V E R S A L A I R C R A F T INDUSTRIES—Continued 47-25-6 Carburetor flexible air duct U-3 47-25-7 Oil radiator outlet sleeve U-3 47- 40-2 Continental C75 and C85 piston pins A E - 9 48-28-1 Fuselage bulkhead rework U-3 48-48-1 Freedman propeller hubs A P - 9 51-2-2 Asbestos cloth removal U-5 51-8-3 Stabilizer spar attachment U-5 51-10-5 Fuselage reinforcement rework U-^6 51-11-4 Landing gear rework V-6 56-16-4 Landing gear torque knees U-6 58-10-3 Landing gear stop ring U-7 108, 108-1 T C 767 47-50-11 Ash tray modification U-3 47-50-12 Stabilizer attachment fitting U-3 47- 50-13 Koppers propeller hub AP-29 48-50-1 Franklin cylinder base flange A E - 1 50-17-2 Rudder cable inspection U-4 50-25-1 Fuel drip strip U-4 50-34-1 Koppers F-200 propeller A P _ o o 54-2-2 Federal ski rigging AQ-29 108-2 T C 767 47-50-11 Ash tray modification U - 3 47-50-12 Stabilizer attachment fitting U-3 47-50-13 Koppers propeller hub £ P 7 49- 16-2 Wing fabric inspection U-4 50- 17-2 Rudder cable inspection U-4 50-25-1 Fuel drip strip U-4 50-34-1 Koppers F-200 propeller A