Supplemental Type Certificate
Beechcraft C24R Sierra · Weight And Balance
Overview
This document is a Supplemental Type Certificate (STC) issued by the FAA for the Beechcraft C24R Sierra. It details the installation of the Plane-Power ALT-FLX alternator, providing guidelines and specifications necessary for compliance with airworthiness regulations. The STC outlines the necessary modifications, limitations, and conditions for the installation, ensuring that the aircraft meets the required safety standards. It is intended for use by aircraft maintenance personnel and owners looking to upgrade or modify their aircraft's electrical systems. The document includes installation instructions, certification basis, and maintenance guidelines to ensure continued airworthiness of the aircraft after modifications are made.
- The STC is for the Beechcraft C24R Sierra and details the installation of the Plane-Power ALT-FLX alternator.
- Installation must comply with FAA regulations outlined in FAR 23.
- Annual inspections are required to check the condition of the alternator and its components.
- The installer must ensure compatibility with any previous modifications before proceeding with the installation.
- Supporting documentation must be retained and referenced for maintenance and compliance purposes.
Document
Source
Originally published by planepower.aero. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Weight And Balance
- Year
- 2013
- Pages
- 11
- File size
- 572 KB
- Publisher
- planepower.aero
Common. Rarer than 17% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the Beechcraft C24R Sierra.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
Free — save the 24R to your watchlist and track it in one place.
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In this document
Certification Basis
The certification basis for the STC includes compliance with various parts of FAR 23, ensuring that the modifications meet the necessary safety and performance standards. This includes sections related to structural integrity, electrical systems, and overall aircraft performance.
Installation Instructions
The document provides detailed installation instructions for the ALT-FLX alternator, including wiring connections, torque specifications, and safety precautions. It emphasizes the importance of following the guidelines to ensure proper installation and operation of the alternator.
Maintenance Requirements
Maintenance requirements are outlined for the ALT-FLX alternator, including annual inspections and checks for wear on components such as the field brush assembly. Specific intervals for inspections are provided to maintain the airworthiness of the installation.
Limitations and Conditions
The STC specifies that the installer must verify compatibility with any previously approved modifications. It also states that written permission is required if the STC is to be used by another person for alterations.
Supporting Documentation
Supporting documentation for the STC includes installation drawings, specifications, and instructions for continued airworthiness. These documents are essential for ensuring compliance with FAA regulations and maintaining the aircraft's operational integrity.
Safety notes
- Ensure all electrical connections are secure and properly insulated to prevent shorts.
- Follow all safety precautions outlined in the installation instructions to avoid injury during installation.
Full document text
'l)nitcí.\'tatas of lIne ica Q) ep artme n.t of lrønsp o rtatio n (F e [erø [ A viatío n I [minß tratio n S rpp fementø [ Í1p e C ertific øt e Nu.m6ersn r r37sc Ífü: certtficate issue[to: IIaltzclI tìnginc'l'echnologics l.l.C 2900 Schna I Iighrva¡, Montgonrcry, Al. 3(r 108 certifiestliattñe cftange in tfie Qpe [esignfortfiefoffo'wing pro[uct'witfitfte fimitcttions attl conlitions tfiereJore as specfie[fterconmeetstñe airwortfüness requircntuús of {Part 23of tfiel;ctlcral Aviarion RCgufatiotts. Original Product- Tlpc CcrtilicatcNLlnbcr': Scc Approvcd Model List Make: See Approved Model List Model: See Approved Model List Description of Type Design Change: InstallationofPlane-PowerALT-FLXalternatorinaccordancewithlnstallationlnstructions,Dr:awingNo. l7-100 l,dated November24,20ll,orlaterFAAApprovedrevision. AlternatortypedesigndataiscontainedinAircraftEngineAlternatorPartsList, DrawingNo. l7-0000,datedNovember24,20ll,orlaterFAAApprovedrevision. InstructionsforContinuedAirrvofihinessarecontainedin Drawing No. l7-1001. Li mitations and Cond itions: The installer must determine whether this design change is compatible with previously approved modifications. If the holdcr agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission. Certification Basis: (See continuation Sheet 3 of3) Ífüs certificate anl tñe supporting lata wñicfi is tûe 6asis for approvaf sñaff remain in ffict untif surrenferel, suspenlel, an[ reaoQg[ or a termination [øte ß otfrerwise esta\fisfiel fu tñe l.lminßtrator of tlie Çe[eraf Ar., i"øti o n A lminis trøti o n. Date ofapplication: May 18,2012 Date of issuance: March 14,2013 Date reissued: 03126113; 05/10/13; 07117 I 14 Date amended: cB1 lirection of t ñe fl lminis trator Manager, Aircraft Certifi cation Offi ce, Southrvest Region Anyalterationofth¡scertificateispunìshableblafìneofnotexceeding$l,000,orirnprisonmentnotexceeding3years,orboth Thiscertificatemaybetransferredor madeavailabletothirdpersonsbyiìcensingagreementsinaccordancewithl4CFR2l4T PossessionofthisSupptementalTypeCertificate(STC)documentby personsotherthantheSTCholderdoesnotconstituterightstothedesigndatanortoalteranaircraft,aircraftengine,orpropeller TheSTC'ssupporting documentation (drarvings, instructions, specifications, flight manuaì supplements, etc ) is the property ofthe STC holder An STC holder who allorvs a person to use the STC to alter an aircralt, aircraft engine, or propeller must provide that person with written permission acceptable to the FAA (Ref. I 4 CFR 21 I 20) FAA Form 81 10-2 (8/1 3) Page 1 l) n i t c[.] ta tc s of n m c ica {D ep artment of Íran sp o rt a tio n F e le rø [ A v iøtio n. I lminis trøtio n S upplementül Type Certilicate (Continuation Sheet) Num6u: sAlr3Tsc Øote of I ssuaflcgi March I 4, 20 I 3 fuissu.ance (Døte: nty n,2ot4 Certification Basis (Conti n ued) : 11 Cf l Part 23.e01(a) (b){23-62}, 23.1041 { 23-5 I }, 23.t t63 {23-42}, 23. 130 I (a)(b )(c){23-62} ,23. I 30e(a)( b)(c)(<t) {23-62 }, 23.t3st (a)(23- 4e|,23.135e(c){23-49},23.1365(d){23-4e}.23.t43t(b)123-62),23.t529 123-26} -END- AnyalterationofthiscertificateispLrnishablebyafineofnotexceeding$l,000,orimprisonmentnotexceeding3years,orboth Thiscertificatemaybetransferred or made available to third persons by licensing agreements in accordance with l4 CFR21 47 Possession ofthis Supptemental Type Certificate (STC) document by personsotherthantheSTCholderdoesnotconstituterightstothedesigndatanortoalteranaircraft,aircraftengine,orpropeller ThesTC,ssupporting documentation (drawings, instructions, specifications, flight manual supplements, etc ) is the property of the STC holder An STC holder who allows a person to use the STC to alter an aircraft, aircraft engine, or propeller must provide that person with wr¡tten permiss ion acceptable to the FAA (Ref. l4 CFR 2l 120) FAA Form 8110-2 (8113) Page 3 FAA APPROVED MODEL LIST (AML) SAI I I37SC Haftzell Engine Technologies LLC 2900 Selma Highway Montgomery, AL 36108 Date of issuance: March 14, 2013 Date reissued: March 26. 2013: May .l0. 2013: Julv 17. 2014 Aircraft Make Aircraft Model Original Type Certificate Number RegulationÆart Aerostar Aircraft Corooration 360, 400 AIIWE FAR 23 Aerostar Aircraft Corporation PA-60-600 (Aerostar 600), PA-60-601 (Aerostar 601 ), PA-60-60 I P (Aerostar 601P), PA-60-602P (Aerostar 602P), PA-ó0-700P lAerostar 700P) A17WE FAR 23 AERMACCHI S.p.A. s.205-t8/R,S.205-20Æ s.205 - 20lR, 5.205 -22tR, s.208. s.2084 A9EU FAR 23 AERMACCHI S.p.A. F .260, F .2608, F.260C, F .260D, F.260E. F.260F' AIOEU CAR 3 American Champion Aircraft Corporation 7ECA7GC,7CGA, 7GCAA, 7GCB, 7GCBA, 7GCBC, 7HC, 7KC, TKCAB A-759 CAR 4a American Champion Aircraft Corporation SGCBC, SKCAB A2lCE FAR 23 Aviat Aircraft Incorporated A-1, A-lA, A-lB, A1C-I80, Alc-200 A22NM FAR 23 Aviat Aircraft Incorporated S-IS, S-IT, S-2, S-2A, S-28, S. 2C ASSO FAR 23 Brantley Helicopters Industries U.S.A. Co.. Ltd. 305 H3SW CAR 6 Brantley Helicopters Industries U.S.A. Co.. Ltd. B-2 (YHO 3BR), B-24, B-28 2H2 CAR 6 Cessna Aircraft Company 1721, t72K, 172L, 17 2M, 172N, 172P.1720 3Al2 CAR 3 Cessna Aircraft Comoanv 172F., t72S 3Atz FAR 23 Cessna Aircraft Company 17 2L. F t7 2l|'4.. F 17 2. F 17 2P A4EIJ CAR 3 Cessna Aircraft Company 177. t77 A. t77B AI3CE FAR 23 Cessna Aircraft Companv I77RG A2OCE FAR 23 Cessna Aircraft Comnanv F177RG A26EU FAR 23 Cessna Aircraft Company 80, 1804, 1808, 180c,180D, 80E, 180F, 180G, 180H, 180J, 80K 51.6 CAR 3 Cessna Aircraft Company 82, t824, 1828, 182C, 182D, 828, 182F, 182G, 182H, 182J, 82K, t82L, 182M, 182N, I 82P, 182P, 182Q, 182R, T182, 'Rl82. Tl82T 3Al3 CAR 3 Ccssna Aircraft Company 85, 1854, 1858, 185C, 185D, 85E, Al85E. Al85F 31'24 CAR 3 Cessna Aircraft Company 88,4188, 1884, Al88A, 888. Al88B. Tl88C A9CE FAR 23 Cessna Aircraft Company 210-s (20s), 210-s A (205A), 210. 2101'. 2108. 2l 0c. 210D. 31.21 CAR 3 2108, 210F, 2t 0G, 2 I 0H, 2l 0J, 2t0K,210L,210M, 2t0N,
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2t0R, T2l0F, T2t0G, T2l0H, T2 I 0J, T2 lOK, T2t0L, T2 I 0M, T2l0N. T2l0R. P2t0N. P2l0R Cessna Aircraft Company 206,206H,P206,P206A, P2068, P20 6C, P20 6D, P20 6F,, u206, u206 A, U2068, U206C, u206D, U206F,, U206F, U296G, T2O6H, TP2O6A, TP2O6B, TP2O6C, TP2O6D, TP2O6E, TU2O6A, TU2O6B, TU2O6C, TU2O6D, TU2O6E, TU2O6F, TU2O6G A4CE CAR 3 Cessna Aircraft Comnanr 207.2071'.T207.T2074 AI6CE FAR 23 Cessna Aircraft Company t52. At52 3Al9 CAR 3 Cessna Aircraft Comoanv F152. FAl52 AI3EU CAR 3 Cessna Aircraft Comnanv I72RG 3Al7 CAR 3 Cessna Aircraft Company 310, 3104, 310B, 310c, 310D, 3 10E, 3 10F, 3 10G, 3 10H, 3 10r, 3 r0J, 3 10K, 310L, 310M, 3 10N, 3 10P, 3 10Q, 83 10H, E3l0K 3At0 CAR 3 Cessna Aircraft Company 320. 320-t. 320A. 3208. 320C 3r'.25 CAR 3 Cimrs Desien Corporation SR2O A00009cH FAR 23 CPAC, Incorporated tt2,lt4,7t2TC, ttzB, I 12TCA. I l4A. ll4B. I t4TC AI2SO FAR 23 Cub Crafters cc18-180. CClS-1804 400006sE FAR 23 Diamond Aircraft Industries GmbH DA 40, DA 40 F A47CE JAR 23 The Enstrom Helicopter Corporation F28, F-284, F-28C, F-28C-2, F- 28C, F-28C-2R, F-28F, F-28F- R. 280.280C- 280F. 280FX HICE CAR 6 Extra Flugzeugproduktions EA-300, EA-300/S, EA-300/L, EA-300/200 A67EU FAR 23 Hawker Beechcraft Corporation l9A, B19, M19A,23, A23-19, 423 -24, 823, C23, /.24, 1'24F., 824R. C24R AlCE CAR 3 Fred Garcia 480 21.2 CAR 3 Hawker Beechcraft Corporation 35-33, 35-433, 35-833, 35-C33, E33, F33, G33, H35, J35, K35, M35, N35, P35, 535, V35, v35A 3Al5 CAR 3 Hawker Beechcraft Corooration 60.460.860 AI2CE FAR 23 Hawker Beechcraft Corpo¡ation 76 A29CE FAR 23 Hawker Beechcraft Corporation 77 A3OCE FAR 23 Hawker Beechcraft Corporation 95,895, 95-55, 95-A55, B95A, D954, 895, 95-855, 95-855A, 95-8558. 56TC. A56TC 3Al6 CAR 3 Lavia A¡eentina S.A. P A-25, P A-25 -23 5, P A-25 -260 2^t0 cAR 8.lOlb) Maule Aerospace Technology, Incorporated M-4-180V, M-5-180C, M-5- 200, M-5-2l0TC, M-5-235C, M- 6-180, M-7 -235, M-7-23 54, M- 7 -23 58, Ì|/4-7 -23 5 C, l/f-7 -260, i|'f-7 -260C, M-8-23 5, M-9-23 5, MT -7 -23 5, MT -7 -260, MX-7 - 160, N,D(-7-160C, MX-7-l 80, MX-7- 1 804. I\,D(-7- I 804C. 3/.23 CAR 3 MX-7-l 808, MX-7-l 80C, MX- 7 -23 5, MXT -7- I 60, MXT-7- 180. MXT-7-1804 Mooney Airplane Company, Incorporated MzO,M2OA, M2OB, M2OC, M2OD, M2OE, M2OF, M2OG, M2OJ. M2OM 2A3 CAR 3 Piper Aircraft, Incorporated P A-23, P A-23 - I 60, P A-23 -23 5, PA-23-250.P1.-823-250 lAl0 CAR 3 Piper Aircraft, Incorporated P A-24 - 1 80, P A-24 -250, P A-24- 260.P1.-24-300 lAl5 CAR 3 Piper Aircraft, Incorporated PA-28-140, PA-28-t 50, PA-28- l5 l, PA-28-160, PA-28-16t, PA-28- I 80, PA-28-20 I T, PA- 28-23 5, P A-28 -23 6, PA-2 8R- l 80, PA-28R-200, PA-28RT- 20t, PA-28S-160, PA-28S- I 80 2At3 CAR 3 Piper Aircraft, Incorporated PA-3l, PA-3 r-300, PA-31-32s, PA-31-350 ASEA CAR 3 Piper Aircraft , Incorporated P A-32-260 PA-32R-3 0 I (SP), PA-32-300 PA-32R-301 (HP), PA-32S-300, PA-32R-30 l r, PA-32R-300, PA-32-301, PA- 32RT-300, PA-32-30 I T, PA- 32RT-300T, PA-32-301 FT, PA- 32-30lXT A3SO CAR 3 Piper Aircraft. Incoroorated PA-34-200 ATSO FAR 23 Pioer Aircraft. Incoroorated PA-44-180 AI9SO FAR 23 Piper Aircraft , Incorporated PA-46-3 l0P, PA-46-350P, PA- 46-500TP, PA-46R-350 A25SO FAR 23 Revo, Incorporated LAKELA-4-200, LAKE MODEL 250 lAl3 CAR 3 Robinson Helicopter Company R22,R22 Alpha, R22 Beta, R22 Mariner HIOWE FAR 27 Robinson Helicopter Company R44. R44II HIINM FAR 27 SOCATA Rallye 150T, Rallye 15051 , Rallye 235C, Rallye 235E, MS 8924-150, MS 892E-150, MS 8934, MS 893E, MS 8944, MS 894E 7Al4 CAR IO CAR 3 SOCATA TB9, TBIO, TB2O, T821, TB2OO A5IEU FAR 23 SOCATA GA-7 AITSO FAR 23 Sierra Hotel Aero. Incomorated Navion D. E. F. G. H A-782 CAR 3 Sikorsþ Aircraft Corporation 269 A, 269 A- t, 2698, 269 L, 269C-1 4H12 CAR 6 True Flisht Holdinss LLC AA-1. AA-IA. AA-IB. AA-IC AIIEA FAR 23 True Flisht Holdinss LLC AA-5. AA-54. AA-58. AG-5B A16EA FAR 23 Twin Commander Aircraft LLC 500. 5008. 500-s 6Al CAR 3 Twin Commander Aircraft LLC 700 Al2SW FAR 23 Vulcanair, S.p.A P68, P 68B, P 68C, P 68C-TC, P68 "Observer", P68TC "Observer". P68 "Observer 2" A3IEU FAR 23 Hartzell Engine Technologies LLC Aircraft Engine Alternator Parts List DRAWING NO. 17-0000 Rev. D Created: 11/24/2011 Last Revised: 10/5/2016 Rev. Date By Revisions JH BRJ BRJ CMB Rev* Description ALT-FLX-1 ALT-FLX-2 ALT-FLX-3 ALT-FLX-4 ALT-FLX-5 ALT-FLX-6 ALT-FLX-7 ALT-FLX-8 ALT-FLX-9 17-1001 D INSTALLATION INSTRUCTIONS X X X X X X X X X 17-2000-1 C ALTERNATOR ASSEMBLY X 17-2000-2 C ALTERNATOR ASSEMBLY X X 17-2000-3 C ALTERNATOR ASSEMBLY X X X X 17-2000-4 C ALTERNATOR ASSEMBLY X 17-2000-5 C ALTERNATOR ASSEMBLY X 17-9099 A ALT-FLX CMI MOUNTING KIT X X 17-1089 A ALT-FLX MOUNTING KIT LYC X X 17-1099 A ALT-FLX MOUNTING KIT LYC X X X R1224B L VOLTAGE REGULATOR X X X 10/5/2016 1) UPDATED STRUCTURE TO NEW SCHEME, REPLACED SINGLE ALT- FLX WITH ALT-FLX-1 THRU -9; 2) ADDED MOUNTING KIT SECTION, REMOVED REDUNDANT PART NUMBERS D A B Nov. 12, 2012 10/16/2013 UPDATED 17-1001 REV B * OR LATER APPROVED REVISION 1) FIRST RELEASE TO HET DESIGN DATA. 2) HEADING WAS "PLANE POWER LDT." 3) DRAWING 17-1001 UPDATED TO REV C Part No. C 9/12/2014 INSTALLATION INSTRUCTIONS ALTERNATOR ASSEMBLY MOUNTING KIT REGULATOR 17-1001 Rev. D Page 1 of 5 Drawing No.: 17-1001 ALT-FLX INSTALLATION INSTRUCTIONS READ AND THOROUGHLY UNDERSTAND ALL OF THE INSTRUCTIONS BEFORE BEGINNING INSTALLATION. If a FORD DOFF-series (Cessna 611501, 611502, etc. Grumman American DOFF-10300, etc.) Alternator is being replaced; the ALT-FLX will fit using all existing brackets, belt and hardware. Use ALT-FLX-1. If a Prestolite, Chrysler, Delco or other alternator or a generator is being replaced; new brackets, tension arm and mounting hardware are required, see 17-0000. If desired, the original alternator regulator may be replaced with a R1224 or R1224B regulator. If a generator is being replaced, the generator regulator must be replaced with a R1224 or R1224B regulator (the R1224B mounts using the same holes as most generator regulators). Remove the original regulator and install the R1224 or R1224B in the same location using the R1224 installation and wiring instructions. For Generator Conversions, wire the R1224 per the GENERATOR CONVERSION section of this document. Ensure that the R1224 or R1224B is set for the voltage matching that of the aircraft’s electrical system. MULTI-ENGINE INSTALLATIONS: For proper load-balancing operation, R1224 or R1224B regulators must be installed for each alternator and wired per the R1224 Installation Instructions (12-1001). INSTALLING THE ALT-FLX: NOTE Reference applicable aircraft/engine maintenance manual and FAA AC43-13-1B for guidance on standard methods and practices for electrical, mechanical, and structural work on the aircraft. Follow all WARNINGS and CAUTIONS noted in the aircraft documentation related to the working being accomplished. NOTE Electrical lug and splice sizes are given as a reference. Confirm on aircraft actual wire gauge and associated lug or splice before terminating wires. 1. Gain access to the location where the work is to be accomplished. 2. Label then remove wiring from the existing alternator or generator. Remove the alternator. 3. Cut the ring lug off of the wire removed from the F or F1 terminal (Field) of the original alternator or generator. Connect the wire to EITHER white wire from the supplied 15-5050 Wire Harness/Plug using an M7928/5-4 environmental splice. 4. If a second field wire (F2) was removed, connect it to the other white wire from the supplied 15-5050 Wire Harness/Plug using an M7928/5-4 environmental splice. If no separate field wire (F2) was removed, 17-1001 Rev. D Page 2 of 5 connect the remaining white wire from the supplied 15-5050 Wire Harness/Plug to the elevated post (ground) on the rear of the ALT-FLX using an M7928/1-42 lug and torque 20-35 in-lbs. 5. If an AUX wire was removed from the original alternator (generators will not have one) connect it to AUX terminal of the ALT-FLX with an M7928/1-43 ring lug. Hold the AUX post with a wrench and torque the AUX post nut to 20-35 in-lbs. If an R1224 or R1224B regulator is being installed and there was not an AUX wire, connect a new wire (minimum 20AWG per MIL-W-22759/16) to the ALT-FLX AUX terminal using a ring lug. Route this wire to the location that the regulator is being installed. 6. If a separate ground wire (- or GND) was removed from the original alternator or generator, reconnect it to the elevated post (ground) on the rear of the ALT-FLX. Hold the ground post with a wrench and torque the ground post nut to 20-35 in-lbs. If it is needed to terminate the wire due to lug size, remove existing lug, and terminate with M7928/1-42 lug. 7. Place the ring lug of the “+” wire (large output wire), and any other wires removed from the output (+) terminal of the original alternator or generator on the M8 output bolt of the ALT-FLX. Torque the M8 nut to 45-50 in-lbs. If currently installed ring lug is not sized for a M8 stud, remove existing lug and terminate with an M7928/1-44 lug. Similarly modify all other existing wires attached to the “+” post of the original alternator or generator. 8. Tension the belt and torque the adjusting bolt to 200 in-lbs and safety with stainless steel 0.032” diameter safety wire. Refer to appropriate engine and airframe service manuals for belt tension and other torque values. Safety wire other drilled mounting bolts. 9. Start the aircraft and check the alternator output for proper operation. 10. Recheck and inspect the entire installation. Complete FAA Form 337, make the appropriate log book entry, update the aircraft equipment list and revise the weight and balance if necessary. 17-1001 Rev. D Page 3 of 5 Generator Conversion NOTE: IF AIRCRAFT DOES NOT HAVE A CIRCUIT BREAKER OR CURRENT LIMITING DEVICE IN THE OUTPUT AND REGULATOR INPUT CIRCUIT THEY MUST BE INSTALLED. NOTE Reference applicable aircraft/engine maintenance manual and FAA AC43-13-1B for guidance on standard methods and practices for electrical, mechanical, and structural work on the aircraft. Follow all WARNINGS and CAUTIONS noted in the aircraft documentation related to the working being accomplished. NOTE Electrical lug and splice sizes are given as a reference. Confirm on aircraft actual wire gauge and associated lug or splice before terminating wires. WIRING THE R1224 1) If not already in place, install and label an alternator Field switch and a 5 amp fuse or circuit breaker in the panel. Connect the input of the circuit breaker to the positive bus and the output to the ENABLE terminal of the R1224. 2) Wire the system as follows, following the R1224 Installation Instructions for additional information: a. Install a R1224 or R1224B alternator voltage regulator in the same location from which the generator regulator is removed. Ensure regulator voltage setting matches airframe electrical system. b. Connect the field terminal on the voltage regulator to EITHER white wire from the supplied 15-5050 Wire Harness/Plug using a connector per M7928/1. c. Connect the other white wire from the supplied 15-5050 Wire Harness/Plug to the elevated post (ground) on the rear of the ALT-FLX using a ring lug per M7928/1. d. Hold the ground post with a wrench and torque the ground post nut to 20-35 in-lbs. e. If the aircraft has a “Generator Inoperative” indicator lamp rated at 100mA or less, it may be used. If a lamp is not currently installed or is not compatible, install an appropriate lamp per MS18235 in the panel with placards in view of the pilot. Wire one lead of the lamp to the positive bus and the other to the R1224 LAMP terminal. Use minimum 20AWG wire per MIL-W-22759/16. f. Connect the AUX terminal of the ALT-FLX to the regulator AUX terminal. Use minimum 20AWG wire per MIL-W-22759/16. g. Connect the GND terminal of the regulator to aircraft ground. Use minimum 18AWG wire per MIL-W-22759/16. h. Jumper the regulator SENSE and ENABLE terminals. i. For multi-engine installations, refer to the R1224 Installation Instructions (12-1001) for additional wiring. 17-1001 Rev. D Page 4 of 5 g. Place the ring lug of the “+” wire (large output wire) on the M8 output bolt of the alternator. Torque the M8 nut to 45-50 in-lbs. If currently installed ring lug is not sized for a M8 stud, replace with M8 ring lug per AS7928. h. Start the aircraft and check the alternator output for proper operation. i. Recheck and inspect the entire installation. Complete FAA Form 337, make a log book entry, update aircraft equipment list, and revise the weight and balance as necessary. 17-1001 Rev. D Page 5 of 5 INSTRUCTIONS FOR CONTINUED AIRWORTHINESS Annual / 100 hour inspections: 1. Remove drive belt and turn alternator rotor to check condition of bearings for abnormal noise or roughness. 2. Return to HET if problem is detected. 5 year or 1,000 hour intervals: 1. Repeat: Annual / 100 hour inspection. 2. Remove field brush assembly and inspect brushes for excess wear. Replace brush assembly if brushes extend less than .250” from edge of brush holder case.