The U.S. aircraft register, updated daily
Parts · Airframe structure

Adapter

409 failure reports named the adapter in the last ten years, 996 since 1995, most often on the Airbus A300; the condition most often found was "corroded". 834 FAA approvals let 25 companies make a replacement adapter, Aerofit INC holding the most (118). The reports call it "adapter", "adapter assy", "adapter kit".

Reports by year

028568511319952000200520102015202020251132026
Reports by year, as a table
reports
199520
199617
199720
199817
199929
200018
200125
200215
200318
200423
200536
200627
200732
200820
200928
201018
201132
201297
201335
201428
201532
201621
201717
201822
201931
202017
202116
202210
202327
202424
2025111
2026113

How it failed the condition found, last ten years

corroded221broken48worn30cracked28damaged21gouged12chafed9leaking7failed6none4
Conditions found, as a table
reports
corroded221
broken48
worn30
cracked28
damaged21
gouged12
chafed9
leaking7
failed6
none4

Engines most often reporting it

Approved replacement parts 834 parts manufacturer approvals

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

For these models most: Boeing 747 (324), Boeing 777 (136), Boeing 737 (128), Boeing 767 (123), Boeing 757 (106), Mcdonnell Douglas DC-9 (27), Bombardier CL-600 Challenger and CRJ (23), Airbus A320 (22), Airbus A319 (21), Sikorsky S-61 (20), Boeing 727 (20), Mcdonnell Douglas MD-11 (19).

MakerPartReplacesFitsGrantedStatus
Cygnet Aerospace CORPAdapter, Large CA7660-12Modification Article Textron Aviation Inc. 310I, 310J, 310J-12026-01-28current
Cygnet Aerospace CORPAdapter, Large CA60-524-12Modification ArticleTextron Aviation Inc. 310I, 310J, 310J-12026-01-28current
Cygnet Aerospace CORPAdapter, Long CA60-524-77Modification ArticleTextron Aviation Inc. 177, 177A, 177B2026-01-28current
Cygnet Aerospace CORPAdapter, Long CA7660-77Modification ArticleTextron Aviation Inc. 177, 177A, 177B2026-01-28current
Cygnet Aerospace CORPAdapter, Small CA60-524-75Modification ArticleTextron Aviation Inc. 120, 140, 140A2026-01-28current
Cygnet Aerospace CORPAdapter, Short CA60-524-82Modification ArticleTextron Aviation Inc. 182E, 182F, 182G2026-01-28current
Cygnet Aerospace CORPAdapter, Small CA7660-75Modification ArticleTextron Aviation Inc. 120, 140, 140A2026-01-28current
Cygnet Aerospace CORPAdapter, Short CA7660-82Modification ArticleTextron Aviation Inc. 182E, 182F, 182G2026-01-28current
Soundair Aviation ServicesADAPTER, REAR SP7110-02-1180AM3406-10-11The Boeing Company 777-200 Series, 777-300ER Series2025-12-22current
Soundair Aviation ServicesADAPTER, ASSEMBLY SP7110-02-1030AM3406-10-18The Boeing Company 777-200 Series, 777-300ER Series2025-12-22current
Wencor, LLCAdapter, Coupling 571242WE571242The Boeing Company 737-900ER Series, 737-8, 737-92025-10-30current
Hartzell Engine Technologies LLCAdapter Assembly, Scavenge Pump and Acc. Drive 55344-2640756A7Continental... TSIO-360-CB11B, TSIO-360-CB6S, TSIO-360-MB10B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Starter Drive 55124643259Continental... IO-470-C10B, IO-470-C11B, IO-470-C12B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Scavenge Pump and Acc. Drive 55344-5640756-1A2Continental... TSIO-360-MB2B, TSIO-360-MB4B, TSIO-360-MB7B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Starter Drive 55105642083Continental... IO-520-B6B, IO-520-BA10B, IO-520-BA11B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Starter Drive 55172653074Continental... IO-360-ES12B, IO-360-ES20B, IO-360-ES2B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Starter Drive 55129646220Continental... IO-360-A5B, IO-360-A6B, IO-360-A8B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Scavenge Pump and Acc. Drive 55344-1640756A9Continental... IO-360-ES26B, IO-360-ES28B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Starter Drive 55106642085Continental... IO-550N-1B, IO-550N-50B, IO-550N-51B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Freon Compressor Drive 55103-1641948-1Continental... IO-360-ES12B, IO-360-ES20B, IO-360-ES2B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Starter Drive 55129-1646220-1Continental... IO-360-ES26B, IO-360-ES28B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Scavenge Pump and Acc. Drive 55345-1642927AlContinental... TSIO-360-A1B, TSIO-360-A2B, TSIO-360-A3B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Scavenge Pump and Acc. Drive 55344-3640756A8Continental... TSIO-360-EB12B, TSIO-360-EB15B,...2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Acc. Drive 55058632407A2Continental... IO-360C-1B, IO-360C-5B, IO-360C-6B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Freon Compressor Drive 55207654662Continental... IO-360-ES26B, TSIO-360-RB1B, TSIO-360-RB3B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Starter Drive 55107642087Continental... IO-520-BA12B, IO-520-BA14B, IO-520-BA14M2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Freon Compressor Drive 55103641948Continental... TSIO-360-CB11B, TSIO-360-CB6S, TSIO-360-EB12B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Scavenge Pump and Acc. Drive 55345-2642927A2Continental... TSIO-360-LB11B2025-09-18current
Hartzell Engine Technologies LLCAdapter Assembly, Scavenge Pump and Acc. Drive 55344-4640756-1A3Continental... IO-360-ES12B, IO-360-ES20B, IO-360-ES2B2025-09-18current
Safran Cabin INC.Adapter Assy A415050BJ501A415050BJ501MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series...2025-08-18current
Spectrum Aeromed LLCAdapter 6374-7Modification ArticleThe Boeing Company 737-700, 737-8002025-07-23current
Spectrum Aeromed LLCAdapter Assembly 6376-3Modification Article The Boeing Company 787-8, 787-92025-05-08current
Spectrum Aeromed LLCAdapter 6302[Modification Article]Airbus Helicopters SA330J, AS332C1, AS332L2025-02-18current
Spectrum Aeromed LLCAdapter 2361[Modification Article]Airbus Helicopters SA330J, AS332C1, AS332L2025-02-18current
Hemico INC.Adapter HEM46021-546021-5Textron Aviation Inc. 400, 400A2024-10-17current
Hemico INC.Adapter HEM46027-546027-5Textron Aviation Inc. 400, 400A, MU300-102024-10-16current
Garmin International INCAdapter, AN-3 to 1/8 MNPT, .016 Restrictor 117-02083-00Modification PartSee Approved Model... See Approved Model List for STC SA01899WI2024-09-27current
Aerospace Welding Minneapolis, INC.Adapter, Exhaust Pipe Cylinder Head KA16493-08LW-78054Lycoming Engines TIO-540-C1A, TIO-540-E1A, TIO-540-G1A2024-06-21current
Spectrum Aeromed LLCAdapter 6355-2Modification ArticleDaher Aircraft Design LLC Kodiak 1002024-02-12current
L-3 Communications Integrated SystemsASSY-ADAPTER L2113‐4Modification PartAir Tractor Inc. AT‐8022024-01-25current
L-3 Communications Integrated SystemsASSY-ADAPTER L2113‐1Modification PartAir Tractor Inc. AT‐8022024-01-25current
Wencor LLC (Formerly Dixie Aerospace LLC)Adapter 6430587-1WD6430587-1The Boeing Company 737-900ER Series, 737-8, 737-92023-07-12current
Spectrum Aeromed LLCAdapter Assembly 6376-2Modification PartThe Boeing Company 787-8, 787-92023-05-01current
Spectrum Aeromed LLCAdapter Assembly 6376-1Modification PartThe Boeing Company 787-8, 787-92023-05-01current
Honeywell International INC.Adapter, QAD 3507810-12121M12P01Engine Alliance GP7270, GP72772023-04-14current
Honeywell International INC.Adapter 3504846-11851M57P01CFM International S.A. CFM56-7B20, CFM56-7B22, CFM56-7B242023-04-14current
Mcfarlane Aviation INC.ADAPTER, Outlet MC0511196-10511196-1Textron Aviation Inc. 180, 180A, 180B2023-04-12current
Panasonic Avionics CorporationADAPTER, BULKHEAD, SMA FEM TO SMA FEM, SEALED HW132876-01HW132876-01Airbus Canada... BD-500-1A10, BD-500-1A112023-04-04current
Panasonic Avionics CorporationADAPTER, TNC BULKHEAD, 90°, FEM TO FEM RVS PLRT HW134909-01HW134909-01Airbus Canada... BD-500-1A10, BD-500-1A112023-04-04current
Honeywell International INC.Adapter 5850015-15850015-1The Boeing Company 757-200 Series, 757-200PF Series,...2023-02-20current
Honeywell International INC.Adapter 3502075-1S332A001-2The Boeing Company 737-300 Series, 737-400 Series,...2023-02-03current
Thales Avionics INCADAPTER,SMA FEMALE TO SMA FEMALE,18GHZ 316556-01316556-01Boeing 737-82022-10-28current
Rotair Aerospace CorporationAdapter R70301-02115-10270301-02115-102Sikorsky Aircraft Corporation S-70 (UH-60A, UH-60L), S-70A2022-10-03current
Rotair Aerospace CorporationAdapter R70301-02115-10170301-02115-101Sikorsky Aircraft Corporation S-70 (UH-60A, UH-60L), S-70A2022-10-03current
Airborne Maintenance & Engineering ServicesADAPTER ASSY, COOLING SYS A19-21-053-501A19-21-053-501Airbus A319-133, A321-200 Series2022-08-25current
Airborne Maintenance & Engineering ServicesADAPTER ASSY, FAN TO SEPARATOR A19-21-015-101A19-21-015-101Airbus A319-133, A321-200 Series2022-08-25current
Monogram SystemsADAPTER 11214-0019302877-001Saab Saab SF340A, Saab 340B, Saab 20002022-08-04current
Monogram SystemsADAPTER 4635-1189302877-002Saab Saab 3402022-08-04current
Airborne Maintenance & Engineering ServicesAdapter 007-04900-3007-04900-3Boeing 737-7002022-04-25current
Airborne Maintenance & Engineering ServicesAdapter 007-04900-11007-04900-11Boeing 737-7002022-04-25current
Airborne Maintenance & Engineering ServicesAdapter 0370-25-0001-2690370-25-0001-269Boeing 737-7002022-04-25current
Thales Avionics INCADAPTER,SMA FEMALE TO SMA FEMALE,18GHZ 316556-01316556-01Airbus A319-132, A319-133, A320-2322022-03-11current
Hydro-Aire IncorporatedAdapter Assembly 2-8351-22-8351-2Boeing 787-92021-11-23current
Able Aerospace Services, INC.Adapter Able-0182-1145-235-79501-1145-2Bell 5052021-10-27current active
John Jewell Aircraft, INC.Adapter, Cowl Induction System JA180-402Modification PartCessna C182 – C182R2021-09-09current
John Jewell Aircraft, INC.Adapter, Cowl Induction System JA180-405Modification PartCessna C182 – C182R2021-09-09current
John Jewell Aircraft, INC.Adapter, Air Duct JA180-607Modification PartCessna C182 – C182R2021-09-09current
John Jewell Aircraft, INC.Adapter, Engine Induction System JA180-401Modification PartCessna C182 – C182R2021-09-09current
Pro Star Precision Machining, LLCLH Adapter Assembly 3974-3Modification PartTextron Aviation B300, B300C2021-07-26current
Pro Star Precision Machining, LLCRH Adapter Assembly 3974-2Modification PartTextron Aviation B300, B300C2021-07-26current
Pro Star Precision Machining, LLCAft LH Adapter Assembly 3974-5Modification PartTextron Aviation B300, B300C2021-07-26current
Pro Star Precision Machining, LLCAft RH Adapter Assembly 3974-4Modification PartTextron Aviation B300, B300C2021-07-26current
Thales Avionics INCADAPTER,KA-BAND WAVEGUIDE - COAX CONN 316554-13316554-13Boeing 737-82021-06-28current
Safran Electronics & Defense, Avionics USA, LLCADAPTER ASSY, LAV DRAIN VALVE 2651-353-12651-353-1Boeing 757-200 SERIES2021-06-24current
Aerospace Welding Minneapolis, INC. 20º Adapter Assembly SUTN-701SUTN-701Piper Aircraft Piper PA-18, PA-18A, PA-18S2021-06-16current
Aerospace Welding Minneapolis, INC.45º Adapter Assembly SUTN-702SUTN-702Piper Aircraft Piper PA-18, PA-18A, PA-18S2021-06-16current
Safran Electronics & Defense, Avionics USA, LLCADAPTER ASSY 0001-0046-10001-0046-1Boeing 767-200 SERIES, 767-300 SERIES2021-05-07current
Spectrum Aeromed, LLCAdapter 6337-7Modification PartGulfstream Aerospace... GV, GV-SP, GIV-X2021-05-06current
Spectrum Aeromed, LLCAdapter Assembly 6349-5Modification PartTextron Aviation 560XL2021-04-27current
Honeywell International INC. Honeywell AerospaceAdapter 2215158-12215158-1Boeing 717-2002021-04-21current
Airborne Maintenance & Engineering ServicesADAPTER ASSY, COOLING SYS A19-21-053-501A19-21-053-501Airbus A319-100, A321-2002021-03-03current
Airborne Maintenance & Engineering ServicesADAPTER ASSY, FAN TO SEPARATOR A19-21-015-101A19-21-015-101Airbus A319-100, A321-2002021-03-03current
Aviation Component Solutions05/03/2021Adapter - Flareless Tube P014801009157-1Yaborã ERJ 170-100 SE, ERJ 170-100 LR, ERJ...2021-02-01current
Jet Parts Engineering, LLC. (Jpe)Adapter 3177946JP-13177946-1Boeing 757-200 Series2020-11-26current
Spectrum Aeromed, LLCAdapter 6382Modification PartViking Air Limited DHC-6-4002020-11-04current
Parker Hannifin CORPAdapter, Pressure, Oiler, 3/8 Inch Size 86-4102-186-4102-1Boeing 747-8 Series2020-10-27current
Parker Hannifin CORPAdapter, Pressure Oiler, 1/2 Inch Size 86-4253-186-4253-1Boeing 747-8 Series2020-10-27current
Parker Hannifin CORPAdapter, Pressure Oiler, 3/8 Inch Size w/105 Inch Elbow Fitting 92-703392-7033Boeing 747-8 Series2020-10-27current
Parker Hannifin CORPAdapter, Pressure Oiler, 1/2 Inch Size 86-4101-186-4101-1Boeing 747-8 Series2020-10-27current
Parker Hannifin CORPAdapter - Refuel, Overwing 457-1478457-1478Airbus A330-8412020-10-21current
Jet Avion Corporation A Heico Aerospace CompanyAdapter M50U707Pratt & Whitney P/N 50U707Pratt & Whitney... PW4164, PW4168, PW4168A2020-09-09current
Korry Electronics COAdapter 409A-01409A01Boeing 727-200 Series, 737-300 Series,...2020-08-05current
Continental Aerospace Technologies INCAdapter, Quick Release, Oil Level Gage AEL7796277962Lycoming O-360-A2D, HO-360-A1A, C1A2020-01-06current
Continental Aerospace Technologies INCAdapter, Straight, 3/8 ID Hose AELSTD684STD-684Lycoming Installation eligibility is same as AELSTD5572020-01-06current
Continental Aerospace Technologies INCAdapter Assembly, Fuel Pump AEL6915969159Lycoming IO-320-B1B, C1A, C1B2020-01-06current
Continental Aerospace Technologies INCAdapter Assembly, Hydraulic Pump AEL7167571675, 76795Lycoming O-540-A1A, A1A5, A1B52020-01-06current
Continental Aerospace Technologies INCAdapter Assembly, Vacuum Pump AEL6753667536, 28A21289Lycoming O-540-A1A, A1A5, A1B52020-01-06current
Continental Aerospace Technologies INCAdapter, Oil Filter AEL7785277852Lycoming O-235-C1, C1B, C1C2020-01-06current
Continental Aerospace Technologies INCAdapter Assembly, Vacuum Pump AEL6109861098Lycoming O-235-C1, C1B, C1C2020-01-06current
Continental Aerospace Technologies INCAdapter Assembly, Hydraulic Pump AEL10807LW-10807Lycoming IO-540-P1A5, S1A5, AA1A52020-01-06current
Continental Aerospace Technologies INCAdapter, Magneto AEL13926LW-13926Lycoming O-540-B1B5, TIO-540-C1A, G1A2020-01-06current
Continental Aerospace Technologies INCAdapter, Magneto AEL12707LW-12707, 73627, 71656Lycoming O-540-A1A, A1A5, A1B52020-01-06current
Continental Aerospace Technologies INCAdapter Assembly, Oil Filter, Angled AEL2277277852Lycoming Same as AEL77852. Reference Service...2020-01-06current
Continental Aerospace Technologies INCAdapter, Magneto, Impulse Coupling AEL12706LW-12706 61666Lycoming O-235-C1, C1C, C2A2020-01-06current
Talon AerospaceAdapter Assy 328-001-1LModification PartsBoeing 757-200Series, 757-200PF Series,...2019-11-25current
Talon AerospaceAdapter 328-001-2Modification PartsBoeing DC-10-10, DC-10-10F, DC-10-152019-11-25current
Talon AerospaceAdapter 328-001-3LModification PartBoeing 737-100 Series, 737-200 Series...2019-11-25current
Talon AerospaceAdapter Assy 328-001-1UModification PartsBoeing 757-200Series, 757-200PF Series,...2019-11-25current
Talon AerospaceAdapter 328-001-3UModification PartsBoeing 737-100 Series, 737-200 Series...2019-11-25current
Garmin International INCADAPTER, ROLL SERVO, TBM850 117-01264-00Modification PartSee Approved Model... See Approved Model List for STC SA01844WI2019-08-18current
Garmin International INCADAPTER, P.TRIM SERVO, TBM 850 115-02961-00Modification PartSee Approved Model... See Approved Model List for STC SA01844WI2019-08-18current
Garmin International INCADAPTER, PITCH SERVO, TBM850 117-01256-00Modification PartSee Approved Model... See Approved Model List for STC SA01844WI2019-08-18current
Spectrum Aeromed, LLCAdapter 6356Modification PartsPilatus Aircraft Ltd. PC-6/B2-H42019-08-04current
Erickson Incorporated DBA Erickson Air-CraneAdapter E209-010-413-103209-010-413-103BELL 214B, 214B-1, 214ST2019-06-19current
Parker Hannifin CORPAdapter - Refuel, Overwing 457-1478457-1478Airbus A330-9412019-05-20current
Hye-Tech Manufacturing LLCAdapter, Splined-Turbine 2nd Stage 6898784HT6898784Rolls-Royce 250- C10B (T63-A-5A), C10D (T63-A-700), C182019-04-30current
Hye-Tech Manufacturing LLCAdapter, Splined 6842095HT6842095Rolls-Royce 250-B15G, B17, B17B2019-04-30current
Spectrum Aeromed, LLCAdapter Assembly 6374-6Modification PartsThe Boeing Company 777-300ER Series2019-04-03current
EdcRear Adapter AM3410-1-9EAM3410-1-9Airbus A318 Model-111 A318 Model -112 A319...2019-03-10current
Snaky Creek Enterprises DBA Spectrum AeromedAdapter 6303Modification PartsRaytheon Aircraft Company Beech) (1900C, 1900D2019-02-21current
Snaky Creek Enterprises DBA Spectrum AeromedAdapter 6303Modification PartsRaytheon Aircraft Company Beech) (1900C, 1900D2019-02-21current
Snaky Creek Enterprises DBA Spectrum AeromedAdapter 6341-9Modification PartsBombardier, Inc. CL-600-1A11, (CL-600), CL-600-2A122019-02-03current
Snaky Creek Enterprises DBA Spectrum AeromedAdapter 6341-6Modification PartsBombardier, Inc. CL-600-1A11, (CL-600), CL-600-2A122019-02-03current
Snaky Creek Enterprises DBA Spectrum AeromedAdapter 6341-5Modification PartsBombardier, Inc. CL-600-1A11, (CL-600), CL-600-2A122019-02-03current
Seginus INCAdapter Assembly 3177635-2EHHoneywell 3177635-2Boeing 737-300 Series, 737-400 Series,...2018-12-13current
Intelsat Inflight LLCAdapter, WR-62 TP N-Type, Straight P41956-001P41956-001Boeing 787-92018-12-10current
EdcRear Adapter AM3410-1-8EAM3410-1-8Airbus A318 Model-111, A318 Model -112,...2018-12-10current
Nextant Aerospace LLCAdapter NT0026-0318-10Modification PartEmbraer S.A. EMB-5052018-12-03current
Nextant Aerospace LLCAdapter NT0026-0318-07Modification PartEmbraer S.A. EMB-5052018-12-03current
United Technologies, Hamilton SundstrandAdapter, Actuator 7013071H017013071H01The Boeing Company 787-102018-02-21current
Eaton Aeroquip IncorporatedADAPTER AE66334MS332A680-2Boeing 737-8, 737-92018-02-18current
Eaton Aeroquip IncorporatedAdapter Assy RA0401D12APRA0401D12APBoeing 787-10, 787-8, 787-92018-02-18current
Eaton Aeroquip IncorporatedAdapter Assembly AE83598RS332U280-2Boeing 767-2C SERIES2018-02-18current
Eaton Aeroquip IncorporatedAdapter Assembly AE70571PS271W841-16Boeing 767-2C SERIES2018-02-18current
Astronics Connectivity Systems and Certification CORP.ADAPTER, PLATE AR240-2352-01Modification PartBoeing 737-700 Series, 737-800 Series,...2017-12-26current
Snaky Creek Enterprises DBA Spectrum AeromedAdapter 6302Modification PartAirbus Helicopters SA330J, AS332C1, AS332L2017-09-14current
Snaky Creek Enterprises DBA Spectrum AeromedAdapter 2361Modification PartAirbus Helicopters SA330J, AS332C1, AS332L2017-09-14current
Ontic Engineering & Manufacturing INCAdapter 30135013013501Pratt & Whitney Canada JT15D-1, -1A, -1B2017-03-30current
Eaton Aeroquip IncorporatedAdapter AE66334MS332A680-2Boeing 737-82017-03-19current
Able Engineering and Component Services, INC.Adapter 4AA-340-108-101407-340-108-101Bell Helicopter... 206L, 206L-1, 206L-32017-02-01current active
Able Engineering and Component Services, INC.Adapter Able-0104-003206-040-203-003Bell Helicopter... 206-A, 206-B, 206-B32017-02-01current active
Able Engineering and Component Services, INC.Adapter Able-0033-101206-040-048-101Bell Helicopter... 206-A, 206-B, 206-B32017-02-01current active
Able Aerospace Services, INC.Adapter 4AA-340-108-101407-340-108-101BELL 206L, 206L-1, 206L-32017-02-01current active
Able Aerospace Services, INC.Adapter Able-0033-101206-040-048-101BELL 206A, 206B, 206B-32017-02-01current active
Continental Motors INCAdapter Assembly, Fuel Pump AEL6915969159Lycoming IO-320-B1B, C1A, C1B2017-01-08current
Continental Motors INCAdapter Assembly, Oil Filter, Angled AEL2277277852Lycoming Same as AEL77852. Reference Service...2017-01-08current
Continental Motors INCAdapter Assembly, Vacuum Pump AEL6109861098Lycoming O-235-C1, C1B, C1C2017-01-08current
Continental Motors INCAdapter Assembly, Vacuum Pump AEL6753667536, 28A21289Lycoming O-540-A1A, A1A5, A1B52017-01-08current
Continental Motors INCAdapter Assembly, Hydraulic Pump AEL7167571675, 76795Lycoming O-540-A1A, A1A5, A1B52017-01-08current
Continental Motors INCAdapter, Magneto AEL13926LW-13926Lycoming O-540-B1B5, TIO-540-C1A, G1A2017-01-08current

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.