SERVICE LETTER - McFarlane Aviation

For Model 180, 182 and 185 (1953-1962) refer to Section 8, Elevator Control System - Aft Bellcrank. For Models 180 and 185 (1963-1968) refer to Section 8, Elevator Control System - Rear Bellcrank. For Models 180/185 (1969-1985) refer to Section 8, Elevator Control System - Bellcranks. (Refer to Figure 1 Detail A and Figure 2 Detail B.) Remove attaching hardware at the stabilizer hinge assemblies and stabilizer hinge brackets. For Models 180, 182 and 185 (1953-1968) refer to Section 4, Airframe - Horizontal Stabilizer. For Models 180/185 (1969-1985) refer to Section 10, Stabilizer Trim Control System - Stabilizer. Lift the horizontal stabilizer from the empennage and place a wooden or padded support between the two pieces. (Refer to Figures 1 and 2.) Clean the following areas to be inspected (Refer to Section 2, Ground Handling, Sevicing, Cleaning, Lubrication and Inspection - Cleaning in the applicable model maintenance manual.): Stabilizer hinge brackets Tailcone reinforcement angles Stabilizer hinge reinforcement channel • Corner reinforcements • Stabilizer hinge assemblies Stabilizer aft spar reinforcement December 7, 2017 SEL-55-01 Page 3 Single Engine MANDATORY Beechcraft SERVICE LETTER Hawker Cessna TEXTRON AVIATION SEL-55-01 • Lower half of the stabilizer aft spar from STA 16 on the left side of the stabilizer aft spar to STA 16 on the right side NOTE: If the inspection area cannot be cleaned adequately, removal of the horizontal stabilizer and the fin may be necessary. • For Models 180, 182 and 185 (1953-1968) refer to Section 4, Airframe - Horizontal Stabilizer and Section 4, Airframe - Fin. For Models 180/185 (1969-1985) refer to Section 10, Stabilizer Trim Control System - Stabilizer and Section 4, Wings and Empennage - Fin. 10. If any corrosion is found, it must be removed before refinishing. (Refer to Section 2A, Supplemental Inspection Documents - Corrosion (for corrosion removal) and Section 2A, Supplemental Inspection Documents - Nondestructive Inspection Methods and Requirements (for measurement of part thickness) in the applicable model maintenance manual.) 11. (Refer to Figures 1 and 2.) Do a detailed inspection of the following areas (Refer to Section 2A, Supplemental Inspection Documents - Nondestructive Inspection Methods and Requirements - Visual Inspections in the applicable model maintenance manual.): • Stabilizer hinge brackets Tailcone reinforcement angles Corner reinforcements Stabilizer hinge reinforcement channel • Stabilizer hinge assemblies • Stabilizer aft spar reinforcement Lower half of the stabilizer aft spar from STA 16 on the left side of the stabilizer aft spar to STA 16 on the right side WARNING: If any cracks are found, no further flight is permitted. The part must be replaced before further flight. NOTE: If the inspection area cannot be viewed adequately, removal of the horizontal stabilizer and the fin may be necessary. • • For Models 180, 182 and 185 (1953-1968) refer to Section 4, Airframe - Horizontal Stabilizer and Section 4, Airframe - Fin. For Models 180/185 (1969-1985) refer to Section 10, Stabilizer Trim Control System - Stabilizer and Section 4, Wings and Empennage - Fin. 12. Record the inspection findings on the attached Visual Inspection Results Form. 13. If any cracks are found during the inspection, the part must be replaced before further flight. 14. Remove the wooden support between the horizontal stabilizer and the empennage. 15. (Refer to Figure 1 Detail A and Figure 2 Detail B.) Install attaching hardware at the stabilizer hinge assemblies and stabilizer hinge brackets. For Models 180, 182 and 185 (1953-1968) refer to Section 4, Airframe - Horizontal Stabilizer. For Models 180/185 (1969-1985) refer to Section 10, Stabilizer Trim Control System - Stabilizer. 16. Connect the bellcrank tube to the elevator pylon. • • For Models 180, 182 and 185 (1953-1962) refer to Section 8, Elevator Control System - Aft Bellcrank. For Models 180 and 185 (1963-1968) refer to Section 8, Elevator Control System - Rear Bellcrank. For Models 180/185 (1969-1985) refer to Section 8, Elevator Control System - Bellcranks. 17. Connect the rudder control cables at the rudder bellcrank. • For Model 180, 182 and 185 (1953-1962) refer to Section 10, Rudder Control System - Installation of Rudder Cables. For Models 180 and 185 (1963-1968) refer to Section 10, Rudder and Rudder Trim Control Systems Removal and Installation of Rudder Cables. For Models 180/185 (1969-1985) refer to Section 9, Rudder and Rudder Trim Control Systems - Cables and Pulleys - Removal and Installation - Aft Cables. 18. (Airplanes with tailwheel steering.) Connect the tailwheel steering cables to the tailwheel bellcrank. For Models 180 and 185 (1953-1968) refer to Section 5, Landing Gear - Tail Gear. SEL-55-01 Page 4 December 7, 2017 Single Engine MANDATORY Beechcraft Hawker SERVICE LETTER Cessna TEXTRON AVIATION SEL-55-01 For Models 180 and 185 (1969-1985) refer to Section 9, Rudder and Rudder Trim Control Systems - Cables and Pulleys - Removal and Installation - Tailwheel Steering Cables. 19. Install the stinger onto the tail section. 20. Install all fin and horizontal stabilizer tail fairings. 21. Remove the maintenance warning tags and connect the airplane battery. 22. Send completed form/attachments to Cessna Structures at csstructures@txtav.com 23. Make an entry in the airplane logbook that states compliance and method of compliance with this service document. SEL-55-01 December 7, 2017 Page 5 Single Engine MANDATORY SERVICE LETTER Beechcraft B21657 Stabilizer Hinge Bracket Tailcone Reinforcement Angle SEL-55-01 Page 6 D DETAIL C Looking Down, Outboard Right Side Shown, Left Side Opposite Hawker Cessna TEXTRON AVIATION SEL-55-01 C B A DETAIL A Stabilizer Hinge Bracket Tailcone Reinforcement Angle DETAIL B Looking Down, Inboard Right Side Shown, Left Side Opposite Figure 1. Tailcone Inspection (Sheet 1) December 7, 2017 Single Engine MANDATORY SERVICE LETTER Beechcraft Cessna TEXTRON AVIATION Hawker SEL-55-01 B21660 December 7, 2017 E DETAIL D Parts Shown Removed From Tailcone Inboard surface 2 3 4 Upper edge of stringer DETAIL E Figure 1. Tailcone Inspection (Sheet 2) Tailcone Reinforcement Angles Identified Crack SEL-55-01 Page 7 Single Engine MANDATORY B21658 SEL-55-01 Page 8 Stabilizer Hinge Reinforcement Channel Beechcraft SERVICE LETTER A 00000 00 000 200 Corner Reinforcement (Right Side Shown, Left Side Opposite) Hawker Cessna TEXTRON AVIATION SEL-55-01 DETAIL A Looking Aft Skin Has Been Removed For Clarity ° DETAIL C Looking Forward Right Side Shown, Left Side Opposite Stabilizer Hinge Assembly' FWD DETAIL B Looking Up and Forward Left Side Shown, Right Side Opposite Figure 2. Horizontal Stabilizer Inspection (Sheet 1) ° B,C 0000 0 December 7, 2017 Single Engine MANDATORY B21659 1.10 SERVICE LETTER A Stabilizer Hinge Reinforcement Channel Centerline (Reference) December 7, 2017 BA VIEW A-A Horizontal Stabilizer Looking down Beechcraft Hawker Cessna TEXTRON AVIATION SEL-55-01 AB Stabilizer Aft Spar Reinforcement Stabilizer Aft Spar VIEW B-B Looking Forward Right Side Shown, Left Side Opposite Figure 2. Horizontal Stabilizer Inspection (Sheet 2) STA 16.00 (Right) (Reference) SEL-55-01 Page 9 Single Engine Beechcraft ATTACHMENT MANDATORY VISUAL INSPECTION RESULTS FORM Hawker Cessna TEXTRON AVIATION SEL-55-01 In the table that follows please provide detailed and dimensioned descriptions of any crack(s) or other deterioration found. Attach pictures to this form as necessary. Airplane Serial Number Total Airframe Hours Total Engine Hours Owner's Name Owner's Address Inspection Facility Name Inspection Facility Address Inspection Results Inspection Area Were any cracks or corrosion found? (If yes, provide details.) Detailed description (cracks, corrosion, loose fasteners, elongated fastener holes, signs of fatigue and deterioration): (Attach pictures and additional details as necessary) Stabilizer Hinge Bracket (Left) Stabilizer Hinge Bracket (Right) Tailcone Reinforcement Angle (Near F. S. 228.62) (Left) Tailcone Reinforcement Angle (Near F. S. 228.62) (Right) Single Engine MANDATORY Corner Reinforcement (Left) Corner Reinforcement (Right) Stabilizer Hinge Reinforcement Channel (Left) Stabilizer Hinge Reinforcement Channel (Right) Lower Half of the Stabilizer Aft Spar (Between STA 16 Left and STA 16 Right) Stabilizer Hinge Assembly (Left) Stabilizer Hinge Assembly (Right) Stabilizer Aft Spar Reinforcement (Left of Centerline) Stabilizer Aft Spar Reinforcement (Right of Centerline) ATTACHMENT Beechcraft Hawker Cessna TEXTRON AVIATION SEL-55-01 Send completed form/attachments to Cessna Structures at csstructures@txtav.com Single Engine Beechcraft Hawker OWNER ADVISORY Cessna TEXTRON AVIATION SEL-55-01 TITLE STABILIZERS - TAILCONE AND HORIZONTAL STABILIZER INSPECTION TO: Aircraft Owner REASON Reports have been received of cracks in the tailcone reinforcement angle, stabilizer hinge bracket and stabilizer. Noncompliance with this service letter may result in undetected crack(s) which may result in structural failure of the horizontal stabilizer. COMPLIANCE MANDATORY. This service document must be accomplished at the next 100-hour or 12-month (annual-type) inspection, whichever occurs later. NOTE: After the initial inspection, this service letter inspection must be completed every 500 hours or 5 years, whichever occurs first. LABOR HOURS WORK PHASE Inspection MATERIAL AVAILABILITY No parts are required to complete this service document. WARRANTY None LABOR-HOURS As Required NOTE: As a convenience, service documents are now available online to all our customers through a simple, free-of-charge registration process. If you would like to sign up, please visit the Customer Access link at www.txtavsupport.com to register. December 7, 2017 SEL-55-01 Page 1 of 1 Textron Aviation Customer Service, P.O. Box 7706, Wichita, KS 67277, U.S.A. 1-316-517-5800 This document contains technical data and is subject to U.S. export regulations. This information has been exported from the United States in accordance with export administration regulations. Diversion contrary to U.S. law is prohibited. ECCN: 9E991 COPYRIGHT © 2017