The U.S. aircraft register, updated daily
Parts · Engine

Piston

53 failure reports named the piston in the last ten years, 422 since 1995, most often on the Diamond Aircraft DA 42 Twin Star; the condition most often found was "cracked". 394 FAA approvals let 25 companies make a replacement piston, Superior Air Parts INC holding the most (82). The reports call it "piston", "piston assy", "piston assembly".

Reports by year

011223243199520002005201020152020202512026
Reports by year, as a table
reports
199524
199643
199717
199818
199920
200020
200121
200218
200323
200417
200516
200614
200712
200818
200911
201012
201113
201219
20139
201414
201510
20167
20173
20184
20195
20202
20211
20224
20234
202412
202510
20261

Which system the reports file it under last ten years

Engine28Landing gear20Airframe structure2Flight controls1Fuel system1Propeller1
Reports by system, as a table
reports
Engine28
Landing gear20
Airframe structure2
Flight controls1
Fuel system1
Propeller1

Models most often reporting it last ten years

Diamond Aircraft DA 42 Twin Star11Bombardier CL-600 Challenger and CRJ8Cessna 172 Skyhawk5Cessna 1524Diamond Aircraft DA 40 Diamond Star4Airbus A3302Cessna 4022Dehavilland DHC-82Airbus A3191Beechcraft 58 Baron1Beechcraft C90 King Air C901Boeing N21
Models most reported, as a table
reports
Diamond Aircraft DA 42 Twin Star11
Bombardier CL-600 Challenger and CRJ8
Cessna 172 Skyhawk5
Cessna 1524
Diamond Aircraft DA 40 Diamond Star4
Airbus A3302
Cessna 4022
Dehavilland DHC-82
Airbus A3191
Beechcraft 58 Baron1
Beechcraft C90 King Air C901
Boeing N21

How it failed the condition found, last ten years

cracked16corroded6damaged6failed6broken5leaking4worn2burned out1clogged1disintegrated1
Conditions found, as a table
reports
cracked16
corroded6
damaged6
failed6
broken5
leaking4
worn2
burned out1
clogged1
disintegrated1

Engines most often reporting it

Austro Engine E4P(series 14Lycoming O-235-L2C 3Continental TSIO-520-VB 2Continental GTSIO-520-H 1Continental IO-520-CB 1Continental IO-550-N 1Continental IO-550 series 1Continental O-300-A 1Continental O-470-K 1General Electric CT7-9B 1

Approved replacement parts 394 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a piston and sell it as an approved part for the models named. These are the companies holding such approvals for a piston:

Superior Air Parts INC 82Airmotive Engineering CORP 45Continental Motors INC 31Continental Aerospace Technologies INC 29Rotair Industries INC 20California Precision Hydraulics INC 20Aviation Materials Management INC 18Wencor LLC (Formerly Dixie Aerospace LLC) 16Goodrich Landing Gear 14Aviation Component Solutions 13Spirit Aerosystems INC 11Aerospace Turbine Rotables 11Omega Aircraft Articles LLC 10Pacific Sky Supply INC 9Jet Parts Engineering INC 8Rapco Fleet Support INC 6Rsa Engineered Products LLC 6Combustion Technologies 6Aviation Materials Management, INC. 6Aviation Materials Management, INC 6Aircraft Component Design LLC 6Aero Brake & Spares INC 6Gulfstream Aerospace LP 5Gemini Engineering 5Galaxy Aerospace CO LP 5

For these models most: Boeing 737 (60), Boeing 747 (41), Boeing 757 (26), Sikorsky S-61 (20), Airbus A320 (18), Airbus A321 (16), Bombardier CL-600 Challenger and CRJ (14), Airbus A319 (14), Boeing 777 (12), Boeing 767 (12), Beechcraft B200 King Air B200 (12), Beechcraft B300 King Air 350 (9).

MakerPartReplacesFitsGrantedStatus
Dac Engineered Products, LLCPiston 90002367-DAC90002367Embraer S.A ERJ 190-100 STD, ERJ 190-100 LR, ERJ...2026-03-12current
Dac Engineered Products, LLCPiston 74-979-DAC74-979Embraer S.A. EMB-145, EMB-145ER, EMB-145MR2025-12-29current
Superior Air Parts INCPiston SA648044 P010654840 P010654724 P010648033 P010646303 P010642761 P010Continental... TSIO-520-AF, -BB, -BE2025-03-26current
Superior Air Parts INCPiston SA648044 P015654840 P015654724 P015648033 P015646303 P015642761 P015Continental... TSIO-520-AF, -BB, -BE2025-03-26current
Aero Brake & Spares INCPiston 5013720AB5013720MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series...2025-01-22current
Hemico INC.Piston Assembly HEM50-82002050-820020Textron Aviation Inc. 100, 99, C992024-10-18current
Hemico INC.Piston HEM50-820020-450-820020-4Textron Aviation Inc. 100, 99, C992024-10-18current
Hemico INC.Piston HEM74-80874-808De Havilland... DHC-8-100 Series, DHC-8-200 Series,...2024-10-16current
Hemico INC.Piston HEM50-521195-1050-521195-10Textron Aviation Inc. C90, C90A, C90GT2024-10-16current
Anb Aviation Parts LLCPiston 3103173-01ANB3103173-01Pratt & Whitney Canada PT6A-60A, PT6A-60AG, PT6A-612024-06-25current
Anb Aviation Parts LLCPiston Assy 3100920-04ANB3100920-04Pratt & Whitney Canada PT6A-60A, PT6A-60AG, PT6A-612024-06-25current
Aviation Component SolutionsPiston P00950201160693Airbus SAS A318-122, A320-216, A320-251N2024-04-26current
Aviation Component Solutions GeorgiaPistonCFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/32023-10-12current
Aero Accessories LLCPiston, Relief Valve AGB-20077McCauley P/N:B-20077Textron Aviation... A23-24, A24, A24R where C290D2...2023-04-25current
Air Repair INCPiston 943-275-01943-275-01Boeing Stearman 75 Series2023-03-30current
Air Repair INCPiston 2174-5752174-575North American BC-1A, AT-6, AT6- (SNJ-2)2023-03-30current
Soundair Aviation ServicesPISTON ASSY SP3810-36-1A1604W400301-119BOEING 737-700 Series, 737-800 Series,...2023-02-14current
Rotair Aerospace CorporationPiston R70250-13167-10270250-13167-102Sikorsky Aircraft Corporation S-70 (UH-60A, UH-60L), S-70C2023-01-25current
Rotair Aerospace CorporationPiston Assy., TLG R70250-13167-04270250-13167-042Sikorsky Aircraft Corporation S-70 (UH-60A, UH-60L), S-70C2023-01-25current
Soundair Aviation ServicesPISTON SP3810-36-1A1804W500301-149BOEING 737-700 Series, 737-800 Series,...2022-12-21current
Aviation Component SolutionsPiston Assy P016346773-01410Bombardier Inc. CL-600-2C10 (Regional Jet Series...2022-10-03current
Aviation Component SolutionsPiston Assy P016346773-01410Airbus A318-111, -112, -1212022-10-03current
Aero Accessories LLCPiston, Relief, Valve AGA-20218McCauley A-20218Textron Aviation... A23-24, A24, A24R2022-05-24current
Turbine Kinetics INC, A Heico Aerospace CompanyPiston 74-846-3KT74-846-3The Boeing Company 747-400 Series, 747-400F Series2022-04-26current
Superior Air Parts INCPiston SA648044 P015654840 P010654724 P010648033 P010646303 P010642761 P010Continental... TSIO-520-AF, -BB, -BE2021-08-26current
Superior Air Parts INCPiston SA648044 P010654840 P010654724 P010648033 P010646303 P010642761 P010Continental... TSIO-520-AF, -BB, -BE2021-08-26current
Rapco Fleet Support INCPiston RFS61409536273Learjet Inc. 25, 31A, 352021-06-03current
Superior Air Parts INCPiston SL10207 P010LW-10207-S P10Lycoming Engines O-540-L3C5D VO-540-B1H3, -C1A, -C1B2021-05-27current
Superior Air Parts INCPiston SL10207 P010LW-10207-S P10Lycoming Engines AEIO-360-A1A, -A1B, -A1B62021-05-27current
Superior Air Parts INCPiston SA654857 P015P/N 654857P015P/N 654726P015P/N 648046P015Continental Motors IO-550-A, -B, -C2021-05-05current
Superior Air Parts INCPiston SA654857 P010P/N 654857P010P/N 654726P010P/N 648046P010Continental Motors IO-550-A, -B, -C2021-05-05current
Superior Air Parts INCPiston SA648029 P015646280P015Continental... O-470-UIO-470-D, -E, -F2021-05-03current
Honeywell International INC. Honeywell AerospacePiston 3170341-13170341-1Boeing 747-100 Series, 747-200B Series,...2021-04-21current
Wencor, LLCPiston 2610059WE2610059The Boeing Company DC-10-10, DC-10-30F (KC-10A, KDC-10)2021-04-20current
Jet Parts Engineering INCPiston 808607JP-6808607-6Boeing 777-300 Series2021-03-22current
Superior Air Parts INCPiston SL75089A P01075089 P10Lycoming Engines AEIO-320-D1B, -D2BAIO-320-A1A, -A1B2021-03-08current
Superior Air Parts INCPiston SA648044 P015648044P015 Continental... TSIO-520-B, -C, -D2021-03-08current
Superior Air Parts INCPiston SL75089A P01075089 P10Lycoming Engines A4D5, -D1A5, -E4A52021-03-08current
Superior Air Parts INCPiston SL75413A P01075413 P10Lycoming Engines AEIO-320-E1A, -E1B, -E2A2021-03-08current
Superior Air Parts INCPiston SL75089A P02075089 P20Lycoming Engines O-540-A1A, -A1A5, -A1B52021-03-08current
Superior Air Parts INCPiston SL75413A P02075413 P20Lycoming Engines AEIO-320-E1A, -E1B, -E2A2021-03-08current
Superior Air Parts INCPiston SA648044 P010648044P010 Continental... TSIO-520-B, -C, -D2021-03-08current
Superior Air Parts INCPiston SL75089A P02075089 P20Lycoming Engines AEIO-320-D1B, -D2BAIO-320-A1A, -A1B2021-03-08current
Superior Air Parts INCPiston SA648013 P015648013P015Continental Motors IO-520-A, -B, -BA2021-02-19current
Superior Air Parts INCPiston SA648013 P010648013P010Continental Motors IO-520-A, -B, -BA2021-02-19current
Jet Parts Engineering INCPiston, Actuator 797666JP-2797666-2Boeing 747-300 Series747-400 Series747-400F...2021-02-01current
Wencor LLCPiston, Stroking 57438WE57438BOEING 727-100 Series, 727C Series, 727-100C Series2020-12-23current
Superior Air Parts INCPiston SL18729 P010P/N LW-18729-P10 P/N LW-13623-P10 P/N 14B23918-P10Lycoming Engines An... O-235-M2C, -M3C, -N2A2020-12-09current
Superior Air Parts INCPiston SA646743 P015646743P015Continental... LTSIO-360-E, -EB, -KB2020-12-06current
Superior Air Parts INCPiston SL10454 P010LW-10545 P10Lycoming Engines TIO-360-A1B, -A3B6, -C1A6D2020-10-27current
Airmotive Components LLC North Fabrication ShopPiston (Diameter + 0.012) AC-W8769 P0128769Warner Engine Company, LLC Super Scarab Series 50 (R-500-2),...2020-10-06current
Airmotive Components LLC North Fabrication ShopPiston (Diameter + 0.010) AC-W8769 P0108769Warner Engine Company, LLC Super Scarab Series 50 (R-500-2),...2020-10-06current
Airmotive Components LLC North Fabrication ShopPiston (Diameter + 0.022) AC-W8769 P0228769Warner Engine Company, LLC Super Scarab Series 50 (R-500-2),...2020-10-06current
Airmotive Components LLC North Fabrication ShopPiston (Standard Diameter) AC-W8769 STD8769Warner Engine Company, LLC Super Scarab Series 50 (R-500-2),...2020-10-06current
Superior Air Parts INCPiston SA646743 P015P/N 654859P015, P/N 654727P015, P/N...Continental Motors TSIO-360-SB, -RB, LTSIO-360-RB2020-10-04current
Superior Air Parts INCPiston SL15357 P020LW-15357 P20Lycoming Engines O-320-H1AD, -H1BD, -H2AD2020-09-08current
Superior Air Parts INCPiston SL15357 P010LW-15357 P10Lycoming Engines O-320-H1AD, -H1BD, -H2AD2020-09-08current
Aviation Component SolutionsPiston, Blocking P009411567-0018Airbus A330-302, A330-323, A318-1112020-06-08current
Turbine Kinetics INC, A Heico Aerospace CompanyPiston 228-56481-105KTBombardier P/N 228-56481-105Bombardier Inc. CL-600-2B19, (Regional Jet Series 100 & 440)2020-05-14current
Wencor LLC (Formerly Dixie Aerospace LLC)Piston, Front D67101AARD67101Airbus A318 Model -111, A318 Model -112,...2020-01-28current
Wencor LLC (Formerly Dixie Aerospace LLC)Piston, Rear D67104AARD67104Airbus A318 Model -111, A318 Model -112,...2020-01-28current
Continental Aerospace Technologies INCPiston AE27056 (and oversizes up to .020)27056Pratt & Whitney Same eligibility as AE35002020-01-06current
Continental Aerospace Technologies INCPiston AEL7508975089Lycoming O-320-B2B, B2C, B3B2020-01-06current
Continental Aerospace Technologies INCPiston AE656432 (and oversizes up to .004)656432Pratt & Whitney Same eligibility as AE570992020-01-06current
Continental Aerospace Technologies INCPiston, 7.3 1 AEL73851 (and oversizes up to .020)73851Lycoming O-235-C1, C1B, C1C2020-01-06current
Continental Aerospace Technologies INCPiston, 4.500 Cylinder Bore AEF1937019370Franklin Engine Co. Inc. 6V4-200-C32, C33, 6V-335-A2020-01-06current
Continental Aerospace Technologies INCPiston, 7.30 1 Comp. Ratio AEL10545 (and oversizes up to .010)75961, 76966, LW-10545, LW-19176, 14D21953Lycoming TO-360-C1A6D, F1A6D, TIO-360-A1A2020-01-06current
Continental Aerospace Technologies INCPiston, 6-7 1 Comp Ratio AE32725 (and oversizes up to .020)AE32725Pratt & Whitney Same eligibility as AE58672020-01-06current
Continental Aerospace Technologies INCPiston AE272903272903Pratt & Whitney Same eligibility as AE570992020-01-06current
Continental Aerospace Technologies INCPiston, Compression 252540640284, 641426, 648039CPContinental IO-240-A, B, IOF-240-B2020-01-06current
Continental Aerospace Technologies INCPiston AEL10207 (and oversizes up to .010)LW-10207Lycoming IO-360-A, C D, AEIO-360A2020-01-06current
Continental Aerospace Technologies INCPiston AEL75413P02075413Lycoming Same as AEL754132020-01-06current
Continental Aerospace Technologies INCPiston AE40698 (and ovesizes up to .020)40698Pratt & Whitney Same eligibility as AE35002020-01-06current
Continental Aerospace Technologies INCPiston, 6.1 AE2352123521Pratt & Whitney Wasp R-1340-S1H1, S1H2, S3H1G2020-01-06current
Continental Aerospace Technologies INCPiston AE272916272916Pratt & Whitney Same eligibility as AE570992020-01-06current
Continental Aerospace Technologies INCPiston AEL75413P01075413Lycoming Same as AEL754132020-01-06current
Continental Aerospace Technologies INCPiston AEL75089P01075089Lycoming Same as AEL750892020-01-06current
Continental Aerospace Technologies INCPiston AE656480 (and oversizes up to .004)656480Pratt & Whitney Same eligibility as AE570992020-01-06current
Continental Aerospace Technologies INCPiston, Compression 252540CC640284, 641426, 648039CPContinental IO-240-A, B, IOF-240-B2020-01-06current
Continental Aerospace Technologies INCPiston, 4.375 Diameter AEL11621 (and oversized...LW11621Lycoming O-235-F1, F1B, F2A2020-01-06current
Continental Aerospace Technologies INCPiston, 6.7 1 Comp. Ratio AE35780 (and oversizes to .020)35780Pratt & Whitney Same eligibility as AE327252020-01-06current
Continental Aerospace Technologies INCPiston, 4.625 Cylinder Bore AEF2073620736Franklin Engine Co. Inc. 6A-350-C1, C1A, C22020-01-06current
Continental Aerospace Technologies INCPiston AEL7541375413Lycoming O-320-A1A, A1B, A2A2020-01-06current
Continental Aerospace Technologies INCPiston, Compression 252540NI640284, 641426, 648039CPContinental IO-240-A, B, IOF-240-B2020-01-06current
Continental Aerospace Technologies INCPiston, 7.30 1 Comp. Ratio AEL10208 (and oversizes up to .010)69236, 71533, 71545, 71940, 72578, 73976,...Lycoming O-480-1, 3, GO-480-A1A2020-01-06current
Continental Aerospace Technologies INCPiston, 4.375 Diameter AEL18729 (and oversized...LW-18729Lycoming O-235-K2A, K2B, K2C2020-01-06current
Continental Aerospace Technologies INCPiston AEL75089P02075089Lycoming Same as AEL750892020-01-06current
Continental Aerospace Technologies INCPiston AE166313 (and undersizes/...166313Pratt & Whitney Same eligibility as AE325442020-01-06current
Continental Aerospace Technologies INCPiston, 6.1 AE1537315373Pratt & Whitney Wasp R-1340-S1H1, S1H2, S3H1G2020-01-06current
Continental Aerospace Technologies INCPiston, 5-1/8 Dia. w/9 1 compression ratio AEL15357 (and oversized...LW-15357Lycoming O-320-H1AD, H1BD, H2AD2020-01-06current
Aviation Component SolutionsPiston, Blocking P00941Liebherr-Aerospace 1567-0018Airbus A319-112, A319-114, A319-1312019-10-10current
Woodward Hrt, INCPiston 1206-0211206-021Boeing 737-200 Series, 737-200C Series2019-06-20current
Woodward Hrt, INCPiston Assy 1165-161165-16Boeing 737-100 Series, 737-200 Series,...2019-06-20current
Pacific Sky Supply INCPiston, Valve 548578P548578Hamilton Sundstrand 54H60-91, -1172019-01-31current
Superior Air Parts INCPiston SL75089AP/N 75089, P/N 74530, P/N 14D23912Lycoming Engines O-360-A1P, -A4P, -C4F2018-02-27current
Superior Air Parts INCPiston SL75413AP/N 75413, P/N 74059, P/N 14D23915Lycoming Engines O-360-B2C2018-02-27current
Superior Air Parts INCPiston SA654857 P10P/N 654857P010, P/N 654726P010, P/N 648046P010Continental Motors IO-550-A, -B, -C2018-02-07current
Superior Air Parts INCPiston SL75413AP/N 75413, P/N 74059, P/N 14D23915Lycoming Engines O-360-B2C2018-02-07current
Superior Air Parts INCPiston SA654857 P15P/N 654857P015, P/N 654726P015, P/N 648046P015Continental Motors IO-550-A, -B, -C2018-02-07current
Superior Air Parts INCPiston SA654857P/N 654857, P/N 654726, P/N 648046Continental Motors IO-550-A, -B, -C2018-02-07current
Superior Air Parts INCPiston SL75089AP/N 75089, P/N 74530, P/N 14D23912Lycoming Engines O-360-A1P, -A4P, -C4F2018-02-07current
Superior Air Parts INCPiston SA648044-P10P/N 654840P010, P/N 654724P010, P/N...Continental Motors TSIO-520-AF, -BB, -BE2017-11-23current
Superior Air Parts INCPiston SA646743P015P/N 654859P015, P/N 654727P015, P/N...Continental Motors TSIO-360-SB, -RB, LTSIO-360-RB2017-11-23current
Superior Air Parts INCPiston SA646743P/N 654859, P/N 654727, P/N 648084, P/N 646743Continental Motors TSIO-360-SB, -RB, LTSIO-360-RB2017-11-23current
Superior Air Parts INCPiston SL18729 P10P/N LW-18729-P10, P/N LW-13623-P10, P/N 14B23918-P10Lycoming Engines O-235-M2C, -M3C, -N2A2017-11-23current
Superior Air Parts INCPiston SL18729P/N LW-18729, P/N LW-13623, P/N 14B23918Lycoming Engines O-235-M2C, -M3C, -N2A2017-11-23current
Superior Air Parts INCPiston SA648044P/N 654840, P/N 654724, P/N 648033, P/N...Continental Motors TSIO-520-AF, -BB, -BE2017-11-23current
Superior Air Parts INCPiston SA648044-P15P/N 654840P015, P/N 654724P015, P/N...Continental Motors TSIO-520-AF, -BB, -BE2017-11-23current
Airbus Helicopters, INC.Piston, Assy 366A575213.00366A575213Airbus Helicopters SA-366G12017-08-22current
Omega Aircraft Articles LLCPiston 5006521-OAAMeggitt Aircraft Braking Systems 5006521RUAG Aerospace Services GmbH Dornier 228-200, Dornier 228-2022017-08-14current
Omega Aircraft Articles LLCPiston 5005129-OAAMeggitt Aircraft Braking Systems 5005129Textron Aviation MU-300-102017-08-14current
Omega Aircraft Articles LLCPiston 74-645-OAAGoodrich 74-645Textron Aviation Inc. 200, 200C, 200CT2017-08-14current
Omega Aircraft Articles LLCPiston AHO89576-OAAMeggitt Aircraft Braking Systems AHO89576Beechcraft Corporation HS.125 Series 700A, HS.125 Series...2017-08-14current
Rapco Fleet Support INCPiston RFS062-10800Parker Hannifin Corp. 062-10800Sikorsky Aircraft Corporation S-76A, S-76B, S-76C2017-07-13current
Continental Motors INCPiston, 5-1/8 Dia. w/9 1 compression ratio AEL15357LW-15357Lycoming O-320-H1AD, H1BD, H2AD2017-01-08current
Continental Motors INCPiston AELW10208LW-10208Lycoming 480 series, 540 series2017-01-08current
Continental Motors INCPiston, 6.1 AE1537315373Pratt & Whitney Wasp R-1340-S1H1, S1H2, S3H1G2017-01-08current
Continental Motors INCPiston AE272916272916Pratt & Whitney Same eligibility as AE570992017-01-08current
Continental Motors INCPiston AEL10207LW-10207Lycoming IO-360-A, C D, AEIO-360A2017-01-08current
Continental Motors INCPiston, Compression 252540CC640284, 641426, 648039CPContinental IO-240-A, B, IOF-240-B2017-01-08current
Continental Motors INCPiston AEL7508975089Lycoming O-320-B2B, B2C, B3B2017-01-08current
Continental Motors INCPiston, Compression 252540640284, 641426, 648039CPContinental IO-240-A, B, IOF-240-B2017-01-08current
Continental Motors INCPiston AEL75413P02075413Lycoming Same as AEL754132017-01-08current
Continental Motors INCPiston AEL75089P02075089Lycoming Same as AEL750892017-01-08current
Continental Motors INCPiston, 5-1/8 inch Dia. w/9 1 compression ratio AEL15357LW-15357Lycoming O-320-H1AD, H1BD, H2AD2017-01-08current
Continental Motors INCPiston, 6.7 1 Comp. Ratio AE35780 (and oversizes to .020)35780Pratt & Whitney Same eligibility as AE327252017-01-08current
Continental Motors INCPiston AE27056 (and oversizes up to .020)27056Pratt & Whitney Same eligibility as AE35002017-01-08current
Continental Motors INCPiston, 7.3 1 AEL7385173851Lycoming O-235-C1, C1B, C1C2017-01-08current
Continental Motors INCPiston, Compression 252540NI640284, 641426, 648039CPContinental IO-240-A, B, IOF-240-B2017-01-08current
Continental Motors INCPiston, 6.1 AE2352123521Pratt & Whitney Wasp R-1340-S1H1, S1H2, S3H1G2017-01-08current
Continental Motors INCPiston AEL7541375413Lycoming O-320-A1A, A1B, A2A2017-01-08current
Continental Motors INCPiston, 4.375 Diameter AEL11621LW11621Lycoming O-235-F1, F1B, F2A2017-01-08current
Continental Motors INCPiston AE40698 (and ovesizes up to .020)40698Pratt & Whitney Same eligibility as AE35002017-01-08current
Continental Motors INCPiston, 4.375 Diameter AEL18729LW-18729Lycoming O-235-K2A, K2B, K2C2017-01-08current
Continental Motors INCPiston, 7.30 1 Comp. Ratio AEL10545 (and oversizes up to .010)75961, 76966, LW-10545, LW-19176, 14D21953Lycoming TO-360-C1A6D, F1A6D, TIO-360-A1A2017-01-08current
Continental Motors INCPiston, 6-7 1 Comp Ratio AE32725 (and oversizes up to .020)AE32725Pratt & Whitney Same eligibility as AE58672017-01-08current
Continental Motors INCPiston AEL75413P01075413Lycoming Same as AEL754132017-01-08current
Continental Motors INCPiston AE656432 (and oversizes up to .004)656432Pratt & Whitney Same eligibility as AE570992017-01-08current
Continental Motors INCPiston, 4.500 Cylinder Bore AEF1937019370Franklin Engine Co. Inc. 6V4-200-C32, C33, 6V-335-A2017-01-08current
Continental Motors INCPiston AEL75089P01075089Lycoming Same as AEL750892017-01-08current
Continental Motors INCPiston, 4.625 Cylinder Bore AEF2073620736Franklin Engine Co. Inc. 6A-350-C1, C1A, C22017-01-08current
Continental Motors INCPiston, 7.30 1 Comp. Ratio AEL10208 (and oversizes up to .010)69236, 71533, 71545, 71940, 72578, 73976,...Lycoming O-480-1, 3, GO-480-A1A2017-01-08current
Continental Motors INCPiston AE166313 (and undersizes/...166313Pratt & Whitney Same eligibility as AE325442017-01-08current
Continental Motors INCPiston AE656480 (and oversizes up to .004)656480Pratt & Whitney Same eligibility as AE570992017-01-08current
Continental Motors INCPiston AE272903272903Pratt & Whitney Same eligibility as AE570992017-01-08current
General Pneumatics Inflation Systems LLCPISTON 524S0010-1524S0010-1Boeing 737-100, 200, 3002016-12-21current
General Pneumatics Inflation Systems LLCPISTON 524S0010R0524-29Boeing 737-100, 200, 3002016-12-21current
General Pneumatics Inflation Systems LLCPiston 743S0020743S0020Boeing 737-100, 200, 3002016-12-13current
Mcfarlane Aviation INCPiston Assembly, Shimmy Dampener MC0542118-50542118-5Textron Aviation Inc. 150G s/n 15064533 thru 15067056,...2016-12-06current
Extex Engineered Products INCPiston, Pressure Relief-Oil T68434426843442Rolls-Royce 501-D13, D22, D22A2016-09-07current

The first 150 of 400.

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.