Service Bulletins

Comanche and Twin Comanche Service Bulletins

Listing from 762-332: Service Bulletin and Service Letter Index, May 19, 2020 Revision

Available from Piper directly.

Number Subject Models Affected Date Part/Kit No. A.D. No.1 ATA Code Grid
164 ADF Indicator Excess Wire, Battery Cable Insulation, Muffler Replacement, Nose Gear Door Retraction Rod, Control Wheel Replacement and Reinforcement Nose Wheel Steering Arm Mounting Bracket PA-24 5/16/58 2J17
167 Oil Cooler Line Clearance PA-24 1/6/59 451-855 59-07-05 7920 2K1
168 Nose Gear Retraction Assist Cord PA-24 1/16/59 754-205 58-25-05 3230 2K2
171 Weight And Balance PA-24, PA-24-250 3/18/59 800 2K4
172 Control Wheel Sprocket Mounting Hole, Inspection of PA-24, PA-24-250 (w/Autocontrol) 4/27/59 ** 2 59-12-09 2700 2K5
173 Aileron Balance Weight Attachment, Bulkhead PA-24, PA-24-250 6/23/59 754-233 59-13-02 2710 2K13
177 Fuel Cell Filling Instructions PA-24, PA-24-250 8/5/59 21994-00 2810 2K20
178 Control Tube Guide Blocks Safety Wiring of PA-24, PA-24-250 9/24/59 2700 2K22
179 Door Window, Refitting of PA-24, PA-24-250 11/6/59 5630 2K24
180 Fuel Cell Vent Tubes, Modification of PA-24, PA-24-250 11/6/59 59-26-02 2810 2L2
187 Safety Switches. PA-24 and 24-250 Landing Gear-Service Letter 314A, Dated June 8, 1954 PA-24 4/15/60 754-221 3230 2L18
190A Insulation-Cabin Heat Induction System PA-24 3/14/60 754-308 2140 2L23
191 Hinge Bracket, Aileron - Part No. 20211-00 PA-24, PA-24-250 6/16/60 20211-00 5150 3A1
192 Throttle Limit Switch Bracket PA-24 6/17/60 754-334 7610 3A3
193 Fuel Cell Vent Tube, Modification of PA-24 6/17/60 60-24-03 2810 3A5
197 Master Cylinder, Brake, Replacement of PA-24 12/2/60 455-929 3240 3A12
201 Vacuum Pumps, Dry, Replacement of PA-24 4/13/61 481-681 3710 3A21
202 Exhaust System, Comanche. Inspection of PA-24 5/22/61 754-396 61-20-02 7810 3A22
205 Circuit Protector Wiring, Inspection of PA-24 8/15/61 2400 3B3
208 Gascolator Bowl Drain Valve PA-24 12/19/61 7310 3B9
210 Muffler Shrouds, Replacement of PA-24, 24-250 10/3/62 754-484 62-26-05 7810 3B12
211 Main Fuel Cell Cavity Modification PA-24-250 11/2/62 754-492 2810 3B17
212 Engine-Driven Fuel Pump, Installation of Vent Lines (PA-24-250 W/Fuel Injection) PA-24-250 12/5/62 756-700 2820 3B20
216 Fuel Cell Drain Modification PA-24, 24-250 8/5/63 756-756 68-13-03 2810 3C4
218 Vacuum Pump Spined Coupling, Replacement of PA-24, 24-250, PA-30 11/11/63 753-865 3710 3C9
219A Heater, 940DB, Modification And Rewiring PA-30 9/23/64 756-815 2140 3C12
220 Alternate Air Doors, Replacement of PA-30 3/3/64 756-794 64-09-05 7160 3C14
222A Airspeed Limits, Restriction To, Removal of (Replacement of Stabilator Torque Tube) PA-30 8/10/64 756-827 64-28-03 3410 3C17
224 Pitch Servo - Modification of - Mitchell Bulletin No. A55 PA-24-250, PA-24-260. PA-24-400, PA-30 4/7/65 756-923 65-11-04 2210 3D3
228 Fuel Purge Valve Hose Assembly, Replacement of PA-24-400 1/7/66 756-994 66-30-07 2810 3D15
229A Airspeed Limits, Restriction, Removal of PA-30 6/17/66 ** 2 66-28-06 3410 3D16
231A Fuel Tank Caps PA-24, 24-250 10/10/66 25983-00 68-13-03 2810 3D23
232 Brake Disc Assembly, Inspection of PA-30 6/8/66 757-039 3240 3D24
235 Airspeed Limit, Never-To-Exceed Standardization of PA-30 9/16/66 ** 2 66-28-06 3410 3E6
236 Oxygen Cylinder PA-30 12/29/66 757-094 67-19-05 3510 3E8
238 Fuel Purge Valve Hose Replacement PA-24-400 12/7/66 757-099 3420 3E10
246 Oxygen Cylinder Rear Retaining Strap Modification of PA-30 3/21/67 758-109 67-19-05 3510 3E22
263 Flight Manual Revision PA-30 1/15/68 760-168 General 3G9
280 Artificial Horizon, R.C. Allen 3", Case Leakage of PA-24-260, PA-30 7/10/68 3420 3H20
299 Flight Manual Revision PA-30 “C” 5/29/69 ** 2 General 3K2
301A Airplane Flight Manual And New Placards PA-30 11/25/69 760-354, 760-355 69-24-04 1100 3K5
306 Alternator System Modification PA-30 “C” 1/9/70 760-347 70-22-05 2430 3K14
310 Modifications, Twin Comanche (Airspeed Marking, Stall Warning Horn Installation) PA-30 5/6/70 760-408, 760-373 3410, 2700 3K24
314A Selector Valve, Fuel Modification PA-30, PA-39 9/28/70 760-444 2820 3L8
315 Limit VNE Airspeed PA-30 7/8/70 ** 2 1100 3L10
320A Autopilot Servo and Bridle Cable Installation, III Series, Inspection of PA-24-260, PA-30, PA-39 7/6/72 2210 3L23
324 Vacuum Pump Adapter Drive Assembly PA-24, PA-30, PA-39 9/29/70 3710 4A9
331 Electric Trim Switch Inspection and Modification PA-24-260, PA-30, PA-39 2/5/71 760-505 71-12-05 2730 4B3
336 Seat Frame Tube Replacement, Vertically Adjustable PA-24-260, PA-30, PA-39 3/11/71 2510 4B18
343 Hartzell Service Bulletin No. 96, Amended 8/18/71 And Supplement No. 1 Amended 8/18/71 PA-30 9/9/71 ** 2 6110 4C13
349 Switch Modification, Master, Electrical System PA-30, PA-39 4/26/72 ** 2 2450 4D5
354B Fuel Selector Valve Lubrication PA-24-180, PA-24-250 5/19/82 ** 2 60-10-08 2820 4D15
362 VNE Speed Limit PA-24-250, PA-24-260 8/14/72 ** 2 3410 4E19
362A Rudder Balance Weight Installation (Does not cancel Service Bulletin No 362) PA-24-180, PA-24-250, PA-24-260 10/6/72 760-705 2720 4E22
381 Manual Revision, Pilot’s Operating/Airplane Flight PA-39 8/29/73 ** 2 General 4G1
394 Rudder Pedal, Warning, Improper Use of PA-24-180, PA-24-250 PA-24-260, PA-24-400, PA-30, PA-39 9/28/73 757-436 2720 4H7
411A Stabilator Torque Tube Bearing Block Attachment Fitting Rivet Replacement PA-24-180, PA-24-250, PA-24-260, PA-24-400, PA-30, PA-39 4/10/74 760-835 94-13-10 2740 4J9
464A Stabilator Torque Tube Bearing Block Attachment Fitting Rivets, Inspection of All PA-24 Series, PA-30, PA-39 3/22/76 760-835 75-27-08 5530 5C16
496 Stabilator Balance Weight Tube Replacement PA-24-250, PA-24-260 6/4/76 28035-00 76-19-07 2740 5G13
511A Oxygen System Outlet Refinement PA-24-260, PA-24-400, PA-30, PA-39 9/24/76 761-032, 752-583 3510 5I3
515 Control Cable Ball Joint Retainer Installation PA-24-250, PA-24-260, PA-24-400, PA-30, PA-39 1/17/77 55447-02 7610 5I10
527 Electric Trim Switch Modification PA-24-260, PA-30, PA-39 11/15/76 756-047 77-09-10 2740 5J18
5463 Inspection of Whelen Wing Tip Strobe Lights; Reference F.A.A. AD 75-05-04 PA-24-260 “C”, PA-39
597 Fuel Selector Valve Replacement PA-30, PA-39 4/19/78 492-137 78-12-07 2840 6H10
677 Publications for Aircraft Operation All Piper Models 5/20/80 PARA 15.0 7H4
751 Spar Cap Chafing Inspection PA-24-400, PA-24-180, PA-24-250, PA-24-260, PA-30, PA-39 5/24/83 ** 2 83-19-03 5740 8G13
771A Parking Brake Application PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, PA-39 9/6/11 81090-002 85-02-05 1130
798 “TURBO” Marking Removal PA-24 Series, PA-30, PA-39 12/11/84 N/A 1110 9B19
805A TRW Hartzell Propeller Service Bulletin No. 142B (O-ring Deterioration) PA-24-260, PA-30, PA-39 3/14/86 N/A 6110 9D15
836A Aluminum Wire Inspection/Replacement PA-24, PA-24-250. PA-24-260, PA-24-400, PA-30, PA-39 8/26/86 ** 2 2400 9J4
855 Use of Automobile Gasoline In Piper Aircraft All Piston Powered Models 1/14/87 N/A 2800 10A7
861 Heated Alternate Air Induction System Installation PA-24-260 5/4/87 760-516 91-21-09 7314 10B1
884 Lock Wiring of V-Band Couplings PA-24-260, PA-30, PA-39 4/8/88 ** 2 7800, 2100 10G20
980 Should Harness Installation PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, PA-39 1/18/95 ** 2 5500 10bB10
1022 Inspection of Induction Air Filter and Distribution of Purolator Service Bulletin, SB090298.01 PA-24, PA-24-250, PA-24-260 9/22/98 460-632 99-05-09 7167 10bI20
1026 Distribution of Parker Hannifin Airborne Service Letter 48, “Inspection/Replacement of dry air pump flexible couplings” PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, PA-39 11/5/98 753-910 3711 10bJ20
1035A Distribution of Textron Lycoming Service Bulletin 529B, “Reprint of Crane/Lear Romec Service Bulletin No. 101SB020, Rev. 3” PA-24-260, PA-24-400 3/22/07 ** 2 2003-14-03 7311 10bL16
1041 Distribution of Airborne Service Letter Number 56, “Inspection and Cleaning of Airborne Air Filter Elements” PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, PA-39 9/25/00 ** 2 3714 10cB1
1160 Stabilator Torque Tube Assembly Inspection PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, PA-39 12/26/05 652-580, 652-581, 652-582, 652-583 5519 10dK15
1189 Stabilator Horn Assembly Inspection PA-24, PA-24-250, PA-24-260, PA-24-400, PA-30, PA-39 4/29/10 ** 2 2012-17-06 5510
1266 Fuel Warning Placard and POH Inspection PA-24-250, PA-24-260, PA-24-400, PA-30, PA-39 12/16/14 ** 2 2015-24-05 1130
1284B Lycoming SB 622A, Slick/Champion Aerospace SB1-15A, Potential decreased service life of Slick 4-cylinder magneto distributer gear assemblies PA-24 4/12/2019 N/A 7414
1286A Lycoming SB 621A, Diaphragm-Type Fuel Pump Replacement PA-24-250, PA-24-260 10/30/15 N/A 7310
1297 Altimeter Inspection and Replacement (United Instruments SB No. 13) All 5/10/16 N/A 3416

  1. Reference latest FAA Bi-Weekly Listing for current A.D. Information. ↩︎

  2. Reference appropriate service bulletin for material identification and/or appropriate aircraft model. ↩︎

  3. This SB is no longer listed in the 2020-03 Piper 762-332 Listing. ↩︎

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