The U.S. aircraft register, updated daily
Parts

Cylinder Block

No failure report names the cylinder block. 49 FAA approvals let 10 companies make a replacement cylinder block, Wencor LLC holding the most (19).

Approved replacement parts 49 parts manufacturer approvals

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

Wencor LLC 19Hamilton Sundstrand Corporation 11Wencor, LLC 8Flight Specialties Components Corporation, A Heico Subsidiary 3Wencor LLC (Formerly Dixie Aerospace LLC) 2Flight Specialties CORP 2Turbine Kinetics INC, Subsidiary of Heico CORP 1Triumph Engineering Services INC 1Jet Tech Engineering 1Jet Parts Engineering INC 1

For these models most: Boeing 777 (10), Airbus A320 (10), Airbus A321 (9), Airbus A319 (9), Bombardier CL-600 Challenger and CRJ (8), Mcdonnell Douglas MD-11 (7), Boeing 757 (7), Boeing 747 (7), Airbus A300 (7), Boeing 737 (6), Boeing 767 (5), Mcdonnell Douglas DC-9 (3).

MakerPartReplacesFitsGrantedStatus
Wencor, LLCCylinder Block And Piston-Matched Set 751869BWE751869BThe Boeing Company MD-11, MD-11F2026-10-01current
Wencor, LLCCylinder Block And Piston-Matched Set (Bare Bore) 1701930WE1701930FOKKER SERVICES B.V. F27 Mark 0502025-01-30current
Wencor, LLCCylinder Block And Piston-Matched Set (Bare Bore) 1701930WE1701930Gulfstream Aerospace... GV, GV-SP2025-01-30current
Wencor, LLCCylinder Block And Piston-Matched Set (Bare Bore) 1701930WE1701930MHI RJAviation ULC CL-600-2C11 (Regional Jet Series 550)2025-01-30current
Wencor, LLCCylinder Block 764635WE764635Airbus SAS A319 Model -153N, A320 Model -272N,...2024-09-29current
Wencor, LLCCylinder Block And Piston Matched Set 762908BWE762908BThe Boeing Company 777-200 Series, 777-300 Series,...2022-11-19current
Wencor, LLCCylinder Block And Piston Matched Set 762908BWE762908BAirbus SAS A330-201, A330-202, A330-2032022-11-19current
Wencor, LLCCylinder Block And Piston Matched Set 762908BWE762908BThe Boeing Company MD-11, MD-11F2022-11-19current
Wencor LLCCylinder Block and Piston Assembly 739504WE739504Bombardier CL-600-2A12 (CL-601), CL-600-2B16...2020-10-15current
Wencor LLCCylinder Block and Piston- Matched Set 738367AWE738367AFokkerGulfstreamBoeing F27 Mark 050GV, GV-SP717-2002020-10-15current
Wencor LLCCylinder Block & Piston Assembly 718066WE718066Bombardier CL-600-2A12 (CL-601) & CL-600-2B16...2020-10-15current
Wencor LLCCylinder Block And Piston-Matched Set (Bare Bore) 1701930WE1701930Bombardier CL-600-2C10 (RegionalJet Series 700,...2020-03-20current
Wencor LLCCylinder Block And Piston-Matched Set (Bare Bore) 1701930WE1701930Embraer ERJ 170-100 STD, ERJ 170-100 LR, ERJ...2020-03-20current
Wencor LLCCylinder Block And Piston-Matched Set (Bare Bore) 1701930WE1701930BOEING 717-2002020-03-20current
Wencor LLCCylinder Block And Piston Matched Set 1703322WE1703322Airbus A300-600, A300, Model B4-6012019-12-12current
Wencor LLCCylinder Block And Piston-Matched Set 763036AWE763036ABOEING 737-8, 737-92019-12-12current
Wencor LLCCylinder Block 764635WE764635Airbus A320 Series, A320 Model -251N, A320...2019-12-12current
Wencor LLCCylinder Block And Piston-Matched Set 763036AWE763036ABOEING 737-700 Series, 737-800 Series,...2018-06-26current
Wencor LLCCylinder Block And Piston Matched Set 1703322WEO1703322Airbus A300-600, A300, Model B4-6012017-04-19current
Jet Tech EngineeringCylinder Block JTE887631Eaton Aerospace/Vickers Fluid Systems 887631Dassault Aviation Falcon 2000, 2000EX2016-05-08current
Wencor LLCCylinder Block and Piston- Matched Set 738367AWE738367AFokker F.27 Mark 050) Gulfstream (GV,...2015-09-29current
Wencor LLCCylinder Block and Piston Assembly 739504WE739504Bombardier, Inc. CL-600-2A12 (CL-601), CL-600-2B16...2015-09-29current
Wencor LLCCylinder Block & Piston Assembly 718066WE718066Bombardier, Inc. CL-600-2A12 (CL-601) & CL-600-2B16...2015-09-29current
Wencor LLC (Formerly Dixie Aerospace LLC)Cylinder Block 569667WDEaton Aerospace (Vickers) 569667Boeing 727, 727C, 727-1002012-03-13current
Wencor LLCCylinder Block 764635WE764635Airbus A318 Series, A318 Model-111, A318 Model-1122010-11-29current
Turbine Kinetics INC, Subsidiary of Heico CORPCylinder Block KT623659623659Airbus A300 model B4-103, A300 model...2010-02-25current
Wencor LLCCylinder Block 764853WE764853Airbus A330-200 Series Models A330-201,...2010-02-02current
Wencor LLCCylinder Block and Piston 766091WE766091Airbus A300-600 A300, Model B4-601 A300,...2010-02-02current
Wencor LLCCylinder Block 764635WE764635Airbus A318 Series A318 Model -111 A318...2010-02-02current
Wencor LLCCylinder Block and Piston Assembly 766240WE766240Airbus A300-600 A300, Model B4-601 A300,...2010-02-02current
Hamilton Sundstrand CorporationCylinder Block and Piston Set, Matched 1703419Hamilton Sundstrand P/N 757358, 762908, 765099Boeing 777-200, 777-3002006-11-13current
Hamilton Sundstrand CorporationCylinder Block and Piston Set, Matched 1703419Hamilton Sundstrand P/N 757358, 762908, 765099Boeing 777- 200, -300) McDonnell Douglas...2006-11-13current
Hamilton Sundstrand CorporationCylinder Block Assembly, Inseparable 1703315Hamilton Sundstrand P/N 764853, 757357Boeing 777- 200, -300) McDonnell Douglas...2006-11-13current
Hamilton Sundstrand CorporationCylinder Block and Piston Set, Matched 1701265Hamilton Sundstrand P/N 733755, 759055, 766240, 766091Boeing 757-200, -300, 767-2002006-11-13current
Hamilton Sundstrand CorporationCylinder Block and Piston Set, Matched 1703322Hamilton Sundstrand 1701265Boeing 747-400, -400D, -400F2006-11-13current
Hamilton Sundstrand CorporationCylinder Block Assembly, Inseparable 1703315Hamilton Sundstrand P/N 764853, 757357Boeing 777-200, 777-3002006-11-13current
Hamilton Sundstrand CorporationCylinder Block Assembly, Inseparable 769457Hamilton Sundstrand P/N 724857, 735609,...Boeing 757-200, -300, 767-2002006-11-13current
Hamilton Sundstrand CorporationCylinder Block and Piston Set, Matched 17034191703419Boeing 777- 200, -300) McDonnell Douglas...2006-06-04current
Hamilton Sundstrand CorporationCylinder Block Assembly, Inseparable 17033151703315Boeing 777- 200, -300) McDonnell Douglas...2006-06-04current
Wencor LLC (Formerly Dixie Aerospace LLC)Cylinder Block 623659WDEaton (Vickers) 623659Boeing Vickers/Eaton Engine Driven...2006-05-04current
Jet Parts Engineering INCCylinder Block 367266JPVickers 367266Bombardier, Inc. CL-600-2B192005-12-22current
Hamilton Sundstrand CorporationCylinder block assembly, inseparable 1703315Boeing 1703315Boeing 777-200, 777-3002005-01-17current
Hamilton Sundstrand CorporationCylinder block and piston set, matched 1703419Boeing 1703419Boeing 777-200, 777-3002005-01-17current
Triumph Engineering Services INCCylinder Block Assembly 714051TG714051Bombardier, Inc. Hamilton Sundstrand Pump and Motors...2004-01-05current
Flight Specialties Components Corporation, A Heico SubsidiaryCylinder Block FS699739BHamilton Sundstrand 699739BBoeing 707-100 Long Body, 707-100B Long...2003-08-21current
Flight Specialties Components Corporation, A Heico SubsidiaryCylinder Block FS764855Hamilton Sundstrand 764855Airbus A300, Model B4-601, B4-6032003-03-27current
Flight Specialties Components Corporation, A Heico SubsidiaryCylinder Block FS699739Hamilton Sundstrand 699739Boeing 707-100 Long Body, 707-100B Long...2003-03-27current
Flight Specialties CORPCylinder Block FS764855Hamilton Sundstrand 764855Airbus A300, Model B4-601, B4-6032002-12-05current
Flight Specialties CORPCylinder Block FS699739Hamilton Sundstrand 699739Boeing 707-100 Long Body, 707-100B Long...2002-11-13current

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.