Ring
792 failure reports named the ring in the last ten years, 3,018 since 1995, most often on the Boeing 737; the condition most often found was "leaking". 3,088 FAA approvals let 25 companies make a replacement ring, Trelleborg Sealing Solutions holding the most (496). The reports call it "o-ring", "ring", "d-ring", "o ring", "ring assembly" and 7 other ways.
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1995 | 79 |
| 1996 | 114 |
| 1997 | 100 |
| 1998 | 89 |
| 1999 | 103 |
| 2000 | 98 |
| 2001 | 96 |
| 2002 | 103 |
| 2003 | 97 |
| 2004 | 78 |
| 2005 | 86 |
| 2006 | 100 |
| 2007 | 101 |
| 2008 | 128 |
| 2009 | 117 |
| 2010 | 122 |
| 2011 | 159 |
| 2012 | 148 |
| 2013 | 130 |
| 2014 | 98 |
| 2015 | 80 |
| 2016 | 78 |
| 2017 | 106 |
| 2018 | 88 |
| 2019 | 124 |
| 2020 | 39 |
| 2021 | 74 |
| 2022 | 48 |
| 2023 | 37 |
| 2024 | 65 |
| 2025 | 71 |
| 2026 | 62 |
Which system the reports file it under last ten years
Models most often reporting it last ten years
How it failed the condition found, last ten years
leaking287damaged136failed68missing43corroded42cracked26cut21worn21out of position20broken19
Conditions found, as a table
| reports | |
|---|---|
| leaking | 287 |
| damaged | 136 |
| failed | 68 |
| missing | 43 |
| corroded | 42 |
| cracked | 26 |
| cut | 21 |
| worn | 21 |
| out of position | 20 |
| broken | 19 |
Engines most often reporting it
CFM International CFM56-7B27 8CFM International CFM56-7B27E 6CFM International CFM56 series 6General Electric CF6-80C2D1F 6International Aero Engines PW1133GA-JM 6Rolls-Royce RB-211 series 6CFM International LEAP-1B28 series 5General Electric CF6-80C2B6F 5International Aero Engines V2527-A5 4Pratt & Whitney Canada PW150A 4
Approved replacement parts 3,088 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a ring and sell it as an approved part for the models named. These are the companies holding such approvals for a ring:
Trelleborg Sealing Solutions 496Aviation Component Solutions 329Kapco 308Superior Air Parts INC 216Lanair Research and Development INC 168Wencor LLC 157Airmotive Engineering CORP 146Coors Tetrafluor 138Jet Avion Corporation A Heico Aerospace Company 104Jet Parts Engineering INC 90Pacific Sky Supply INC 86Seal Dynamics INC 82Extex Engineered Products INC 79Valtec Aircraft Supply 70Continental Aerospace Technologies INC 70Hrd Aerosystems INC 68Continental Motors INC 63Soundair Aviation Services 60Airtomic - A Dover Company (Formerly Cook Airtomic) 58Mcfarlane Aviation INC 54Aircraft Component Design LLC 53Turbine Kinetics INC, Subsidiary of Heico CORP 52Rotair Industries INC 50Ametek Ameron LLC D/B/A Mass Systems 50Spirit Aerosystems INC 41
For these models most: Boeing 737 (657), Boeing 747 (357), Boeing 767 (269), Airbus A320 (260), Boeing 757 (233), Airbus A321 (233), Airbus A319 (227), Mcdonnell Douglas DC-10 (188), Boeing 777 (178), Douglas DC-8 (158), Boeing 727 (142), Bombardier CL-600 Challenger and CRJ (124).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Wencor, LLC | Ring, Retaining 3415-102PWE | 3415-102P | The Boeing Company 747-8F Series, 747-8 Series | 2026-10-01 | current |
| Wencor, LLC | Ring, Retaining 3415-102PWE | 3415-102P | Fokker Services B.V. F28 Mark 0100 | 2026-10-01 | current |
| Wencor, LLC | Ring, Retaining 3415-102PWE | 3415-102P | Airbus SAS A319 Model -153N, A320 Model -272N,... | 2026-10-01 | current |
| Jet Avion Corporation A Heico Aerospace Company | O-Ring A35223JA | A35223 | Airbus SAS A321-111, A321-211, A321-212 | 2026-09-28 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC HC-C2Y, BHC-C2Y, CHC-C2Y | 2026-09-17 | current |
| Jet Avion Corporation A Heico Aerospace Company | Ring - Shaft RE-15ST.035PAJA | RE-15ST.035PA | The Boeing Company 737-800 Series, 777-300 Series | 2026-08-26 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M10004-904 | 10004-904 | Airbus SAS A330-201, A330-202, A330-203 | 2026-08-06 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M10004-904 | 10004-904 | The Boeing Company 737-200 Series, 737-300 Series,... | 2026-08-06 | current |
| Ram Aerospace | Ring 286-11243 | 286-11243 | Pratt & Whitney Canada Corp. PW305A, PW305B, PW306A | 2026-08-04 | current |
| Soundair Aviation Services | O-RING SP3812-33-1023 | 4100170-019-03 | The Boeing Company 737-700 Series, 737-600 Series,... | 2026-07-16 | current |
| Soundair Aviation Services | O-RING SP3812-33-3035 | 4100170-045-01 | The Boeing Company 737-700 Series, 737-600 Series,... | 2026-07-16 | current |
| Core Parts LLC | Ring, Plastic 3019136CP | 3019136 | Pratt & Whitney Canada Corp. PT6A-6, PT6A-6A, PT6A-6B | 2026-07-10 | current |
| Jet Parts Engineering INC | Ring 3181785JP-1 | 3181785-1 | General Electric Company GEnx-2B67, GEnx-2B67B, GEnx-2B67/P | 2026-06-22 | current |
| Omega Aircraft Articles LLC | O-Ring 9523813-OAA | 9523813 | Gulfstream Aerospace LP. Gulfstream G150 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 68-1318-OAA | 68-1318 | Textron Aviation Inc. 500, 552, 550 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 68-216-OAA | 68-216 | Pilatus Aircraft Ltd. PC-12, PC-12/45, PC-12/47 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 68-1413-OAA | 68-1413 | Bombardier Inc. BD-100-1A-10 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 68-1250-OAA | 68-1250 | Bombardier Inc. BD-700-1-10, BD-700-1-11, BD-700-2-12 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 9522643-OAA | 9522643 | Dassault Aviation MYSTERE-FALCON 50 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 68-216-OAA | 68-216 | Bombardier Inc. BD-700-1A10, BD-700-1A11, BD-700-2A12 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 68-448-OAA | 68-448 | Textron Aviation Inc 680, 680A, 750 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 9534512-OAA | 9534512 | Dassault Aviation MYSTERE-FALCON 50, MYSTERE-FALCON... | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 9534512-OAA | 9534512 | Sikorsky Aircraft Corporation S-76B | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 9522643-OAA | 9522643 | Gulfstream Aerospace LP GULFSTREAM 200 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 68-1264-OAA | 68-1264 | Textron Aviation Inc. 560, 560XL | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 68-1264-OAA | 68-1264 | Learjet Inc 45 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 68-1413-OAA | 68-1413 | Textron Aviation Inc. 680, 680A, 750 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 68-216-OAA | 68-216 | Textron Aviation Inc. 390, 500, 510 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 9523813-OAA | 9523813 | Dassault Aviation Falcon 10 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 68-448-OAA | 68-448 | Bombardier Inc. BD-100-1A-10 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 68-955-OAA | 68-955 | Pilatus Aircraft Ltd. PC-12, PC-12/45, PC-12/47 | 2026-06-01 | current |
| Omega Aircraft Articles LLC | O-Ring 9522643-OAA | 9522643 | Bombardier Inc. CL-600-1A11 (600), CL-600-2A12... | 2026-06-01 | current |
| Extex Engineered Products INC. | Ring, Droop Stop E369D2122 7-11 | 369D21227-11 | MDHelicopters 369D, 369E, 369FF | 2026-05-13 | current |
| Wencor LLC | Ring, Back-Up 549-72WE | 549-72 | Airbus SAS A330-202, A330-223, A330-243 | 2026-04-28 | current |
| Wencor, LLC | Ring, Two Piece Rubber 085223-02644WE | 085223-02644 | Airbus SAS A320 SeriesA320-211, A320-214, A320-231 | 2026-04-21 | current |
| Alliance Aerospace Group, LLC | RING, HANDSET A060006-1 | Modification Article | The Boeing Company 737-8 | 2026-04-13 | current |
| Source Manufacturing INC | Ring, Retaining 28801TMT | 28801 | Erickson... S-64E, S-64F | 2026-04-10 | current |
| Source Manufacturing INC | Ring, Shaft Retaining 57910TMT | 57910 | Erickson... S-64E, S-64F | 2026-04-10 | current |
| Source Manufacturing INC | Ring 28719TMT | 28719 | Erickson... S-64E, S-64F | 2026-04-10 | current |
| Source Manufacturing INC | Ring, Retaining 501267TMT | 501267 | Erickson... (T73-P-1) JFTD12A-4A, (T73-P-700) JFTD12A-5A | 2026-04-10 | current |
| Source Manufacturing INC | Ring, Retaining 501268TMT | 501268 | Erickson... (T73-P-1) JFTD12A-4A, (T73-P-700) JFTD12A-5A | 2026-04-10 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC EHC-C3Y | 2026-04-03 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC HC-F3Y | 2026-04-03 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC EHC-L3Y | 2026-04-03 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC HC-C3Y, PHC-C3Y | 2026-04-03 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC HC-D2V, HC-D2MV | 2026-04-03 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC HC-E2Y, DHC-E2Y | 2026-04-03 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC BHC-E2Y | 2026-04-03 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC HC-D3F | 2026-04-03 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC PHC-L3Y | 2026-04-03 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC ()HC-G3Y | 2026-04-03 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC HC-F2Y, DHC-F2Y | 2026-04-03 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC HC-M3Y | 2026-04-03 | current |
| Aerocess, INC | O-Ring AC-3317-340-8 | C-3317-340-8 | Hartzell Propeller LLC HC-A3V, HC-A3MV PHC-A3V, PHC-A3MV EHC-A3V | 2026-04-03 | current |
| Soundair Aviation Services | O-RING SP3812-33-3035 | 4100170-045-01 | The Boeing Company 737-8, 737-9 | 2026-03-16 | current |
| Soundair Aviation Services | O-RING SP3812-33-1023 | 4100170-019-03 | The Boeing Company 737-8, 737-9 | 2026-03-16 | current |
| Pt Aerospace LLC | O-Ring PTA369D25184-3 | 369D25184-3 | MD Helicopters LLC 369D, 369E, 369FF | 2026-01-22 | current |
| Aviation Component Solutions | O-Ring P01385 | 025-07-137 | Embraer S.A. ERJ 190-100 LR | 2026-01-21 | current |
| Aviation Component Solutions | O-Ring P01384 | 025-07-124 | Embraer S.A. ERJ 190-100 LR | 2026-01-21 | current |
| Aviation Component Solutions | O-Ring P01385 | 025-07-137 | Airbus SAS A320-251N, A320-271N, A321-272N | 2026-01-21 | current |
| Aviation Component Solutions | O-Ring P01384 | 025-07-124 | Airbus SAS A320-251N, A320-271N, A321-272N | 2026-01-21 | current |
| R & D Dynamics Corporation | Ring, Fan Rotor RD1001237-2 | 1001237-2 | Embraer S.A. ERJ 170-100 STD, ERJ 170-100 LR, ERJ... | 2025-12-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring MK25700-5 | K25700-5 | Textron Aviation Inc. Hawker 800 | 2025-12-09 | current |
| Precision Airmotive LLC | Ring, Internal Retaining CF521693-3 | 521693-3 | Continental... IO-240-A, -B, IO-360-A | 2025-11-26 | current |
| Aviation Component Solutions | Ring P01575 | 6773-104 | Airbus SAS A321-271NX | 2025-11-24 | current |
| Turbine Kinetics INC, A Heico Aerospace Company | Ring KTH44539 | H44539 | Airbus SAS A321-253NX, A321-253NY | 2025-11-13 | current |
| Hartzell Engine Technologies LLC | O-Ring ES10-90351-9 | 10-90351-9 | Textron Lycoming IO-720-B1B | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | O-Ring ES10-90351-9 | 10-90351-9 | Continental... TSIOL-550-A | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | O-Ring ES10-90351-9 | 10-90351-9 | Lycoming Engines LTIO-540-U2A, TIO-540-U2A, TIGO-541-E1A | 2025-11-10 | current |
| Avm Aviation | Ring 162A1520-1AVM | 162A1520-1 | The Boeing Company 737-600 Series, 737-700 Series,... | 2025-10-22 | current |
| Hartzell Engine Technologies LLC | Ring, Internal Retaining 55015-3 | 502020-3 | Continental... LTSIO-520-AE1A, LTSIO-520-AE1B,... | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Ring, Internal Retaining 55015-4 | 502287-3 | Continental... IO-360A-5B, IO-360A-6B, IO-360A-8B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Ring, Retaining 55019 | 534715 | Continental... IO-470-C10B, IO-470-C11B, IO-470-C12B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Ring, External Retaining 55239-3 | 522247-3 | Continental... IO-360-C11B, IO-360-C12B, IO-360-C13B | 2025-09-18 | current |
| Hartzell Engine Technologies LLC | Ring, External Retaining 55239-2 | 521649-3 | Continental... IO-520-B6B, IO-520-BA10B, IO-520-BA11B | 2025-09-18 | current |
| Vision Air Services, LLC | Ring - Retaining 571917VA | 571917 | Bell Textron Inc. 204B, 205A-1, 212 | 2025-09-17 | current |
| Jet Avion Corporation A Heico Aerospace Company | Ring, BS DIA. 8.7 DDM100087AN9MAJA | DDM100087AN9MA | MHI RJ Aviation ULC CL-600-2C10 (Regional Jet Series... | 2025-09-15 | current |
| Seal Dynamics INC | O-Ring 337-127-002-0SD | 337-127-002-0 | CFM International CFM56-5B1, CFM56-5B1/P, CFM56-5B1/2P | 2025-08-13 | current |
| Aviatron INC. | O-RING AVUSS602-90X2 | S602-90X2 | AIRBUS SAS A319-114, A320-211, A320-212 | 2025-08-13 | current |
| Aviatron INC. | O-RING AVUSS602-148X2 | S602-148X2 | AIRBUS SAS A319-114, A320-211, A320-212 | 2025-08-13 | current |
| Aviatron INC. | O-RING AVUSS621-185X2-5 | S621-185X2-5 | AIRBUS SAS A319-114, A320-211, A320-212 | 2025-08-13 | current |
| Aviatron INC. | O-RING AVUSS602-68X1-5 | S602-68X1-5 | AIRBUS SAS A319-114, A320-211, A320-212 | 2025-08-13 | current |
| Aviatron INC. | O-RING AVUSS602-205X2-5 | S602-205X2-5 | AIRBUS SAS A319-114, A320-211, A320-212 | 2025-08-13 | current |
| Hemico INC. | RING, SCRAPER HEM783-24200 | 783-24200-364A | Embraer S.A. EMB-120, EMB-120RT, EMB-120ER | 2025-07-07 | current |
| Turbine Kinetics INC, A Heico Aerospace Company | Ring KTH44539 | H44539 | Airbus SAS A321-272NX | 2025-07-01 | current |
| Turbine Kinetics INC, A Heico Aerospace Company | Ring KTH44539 | H44539 | Airbus SAS A350-941 | 2025-07-01 | current |
| Wencor, LLC | Ring, Sealing, Toroidal STD1031-4905WE | STD1031-4905 | The BoeingCompany MD-90-30 | 2025-06-27 | current |
| Wencor, LLC | Ring, Sealing, Toroidal STD1031-4905WE | STD1031-4905 | Airbus SAS A319 Model -131, A319 Model -132,... | 2025-06-27 | current |
| Wencor, LLC | Ring, Sealing, Toroidal STD1031-4905WE | STD1031-4905 | International Aero... V2522-A5, V2524-A5, V2527-A5 | 2025-06-27 | current |
| Soundair Aviation Services | “O” Ring SP7110-04-1010 | 67Q0549-01 | Airbus S.A.S A319 -131, A319 -132, A320 -211 | 2025-06-26 | current |
| Donaldson Company INC | O-Ring T500060 | 1391-0156 | General Electric Company GEnx-1B64, GEnx-1B64/P1, GEnx-1B64/P2 | 2025-05-23 | current |
| Donaldson Company INC | O-Ring T500059 | 1391-0157 | General Electric Company GEnx-1B64, GEnx-1B64/P1, GEnx-1B64/P2 | 2025-05-23 | current |
| Aviation Products Systems INC | O-Ring APS101-02100 | 101-02100 | Textron Aviation Inc. 99, 99A, A99A | 2025-05-22 | current |
| Aviation Products Systems INC | O-Ring APS101-00700 | 101-00700 | Textron Aviation Inc. 99, 99A, A99A | 2025-05-22 | current |
| Hrd Aerosystems INC | O-Ring H53101188-1 | 53101188-1 | Textron Aviation Inc. 680 | 2025-04-15 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M622018-00 | 622018-00 | The Boeing Company 737-800 Series, 757-200 Series,... | 2025-04-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M632006-17 | 632006-17 | Embraer S.A. ERJ 170-200 STD, ERJ 170-200 LR, ERJ... | 2025-04-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M632112-00 | 632112-00 | Embraer S.A. ERJ 170-200 STD, ERJ 170-200 LR, ERJ... | 2025-04-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M622061 | 6622061 | Embraer S.A. ERJ 170-200 STD, ERJ 170-200 LR, ERJ... | 2025-04-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M622060 | 6622060 | Embraer S.A. ERJ 170-200 STD, ERJ 170-200 LR, ERJ... | 2025-04-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M632104-00 | 632104-00 | The Boeing Company 737-800 Series, 757-200 Series,... | 2025-04-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M622034-00 | 622034-00 | The Boeing Company 737-800 Series, 757-200 Series,... | 2025-04-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M632006-15 | 632006-15 | Embraer S.A. ERJ 170-200 STD, ERJ 170-200 LR, ERJ... | 2025-04-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M622034 | 622034 | Embraer S.A. ERJ 170-200 STD, ERJ 170-200 LR, ERJ... | 2025-04-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M622018 | 622018 | Embraer S.A. ERJ 170-200 STD, ERJ 170-200 LR, ERJ... | 2025-04-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M622061-00 | 622061-00 | The Boeing Company 737-800 Series, 757-200 Series,... | 2025-04-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M632104 | 632104 | Embraer S.A. ERJ 170-200 STD, ERJ 170-200 LR, ERJ... | 2025-04-10 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-Ring M622060-00 | 622060-00 | The Boeing Company 737-800 Series, 757-200 Series,... | 2025-04-10 | current |
| Aviation Component Solutions | O-Ring P01108 | 333298 | Airbus SAS A330-303 | 2025-02-28 | current |
| Aviation Component Solutions | O-Ring P01107 | 175X1-5SIL | Airbus SAS A330-303 | 2025-02-28 | current |
| Aviation Component Solutions | Ring Set P00441 | 3175615-1 | Airbus SAS A300 Model F4-605R | 2025-02-18 | current |
| Anb Aviation of Ct, LLC | O-Ring DS001-015-2ANB | DS001-015-227-31000-799 | Ontic Engineering... SA227-CC, SA227-DC (C-26B) | 2024-12-20 | current |
| Anb Aviation of Ct, LLC | O-Ring DS001-015-2ANB | DS001-015-227-31000-799 | Ontic Engineering... SA226-TC, SA227-AC (C-26A), SA227-PC | 2024-12-20 | current |
| Anb Aviation of Ct, LLC | O-Ring DS001-015-2ANB | DS001-015-227-31000-799 | Ontic Engineering... SA26-T, SA26-AT, SA226-T | 2024-12-20 | current |
| Anb Aviation of Ct, LLC | O-Ring DS001-015-2ANB | DS001-015-227-31000-799 | Ontic Engineering... SA227-CC, SA227-DC (C-26B) | 2024-12-20 | current |
| Anb Aviation of Ct, LLC | O-Ring DS001-015-2ANB | DS001-015-227-31000-799 | Ontic Engineering... SA26-T, SA26-AT, SA226-T | 2024-12-20 | current |
| Anb Aviation of Ct, LLC | O-Ring DS001-015-2ANB | DS001-015-227-31000-799 | Ontic Engineering... SA226-TC, SA227-AC (C-26A), SA227-PC | 2024-12-20 | current |
| Certex Aviation LLC | g Ring | International CFM56-3, CFM56-3B, CFM56-3C | 2024-12-19 | current | |
| Aviation Component Solutions | Ring, Back-up 326791-016ACS | 326791-016 | Airbus SAS A318 Model -111, A318 Model -112,... | 2024-12-18 | current |
| Aviation Component Solutions | RING, BACKUP 339889-023ACS | 339889-023 | Airbus SAS A318 Model-111, A318 Model -112,... | 2024-12-17 | current |
| Aviation Component Solutions | RING, FRICTION 341212ACS | 341212 | Airbus SAS A318 Model-111, A318 Model -112,... | 2024-12-17 | current |
| Hutchinson Aerospace & Industry INC. | O-RING 1123470-PR | 81810-160-24B7 | Airbus Helicopters AS350B3, EC130B4, EC130T2 | 2024-12-05 | current |
| Jet Avion Corporation A Heico Aerospace Company | Ring RD859989-76 | 859989-76 | The Boeing Company 737-900ER Series | 2024-11-07 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-ring MR00200X150A50D5 | R00200X150A50D5 | Dassault Aviation Mystere-Falcon 900, Falcon 900EX,... | 2024-11-04 | current |
| Ametek Ameron LLC D/B/A Mass Systems | O-ring MR00200X150A50D5 | R00200X150A50D5 | Textron Aviation Inc. 750, 680, 560XL | 2024-11-04 | current |
| Core Parts LLC | Ring, Retaining, Compressor Turbine 3112397-01CP | 3112397-01 | Pratt & Whitney Canada Corp. PT6A-60A, PT6A-61, PT6A-65AG | 2024-10-31 | current |
| Core Parts LLC | Ring, Retaining, Compressor Turbine 3110741-02CP | 3110741-02 | Pratt & Whitney Canada Corp. PT6A-25C, PT6A-34, PT6A-34AG | 2024-10-31 | current |
| Flight Specialties Components Corporation | Ring 9NU402129-00FS | 9NU402129-00 | Airbus SAS A319 Model -112, A320 Model -232,... | 2024-10-24 | current |
| Aviation Component Solutions | RING, SEALING D04705ACS | D04705 | Airbus S.A.S. A300, Model B4-605R, A300 | 2024-10-23 | current |
| Aviation Component Solutions | RING D04706ACS | D04706 | Airbus S.A.S. A300, Model B4-605R, A300 | 2024-10-23 | current |
| Hemico INC. | RING HEM101-388025-0001 | 101-388025-0001 | Textron Aviation Inc. 100, 200, 200T | 2024-10-18 | current |
| Hemico INC. | O-Ring BT337-1HEM | BT337-1 | Dassault Aviation FALCON 2000EX | 2024-10-18 | current |
| Hemico INC. | O-Ring HEM68-1513 | 68-1513 | Embraer S.A. EMB-145LR, EMB-145XR | 2024-10-18 | current |
| Hemico INC. | O-Ring HEM68-1361 | 68-1361 | Airbus SAS A330-201, A330-202, A330-203 | 2024-10-18 | current |
| Hemico INC. | O-Ring HEM68-1482 | 68-1482 | Textron Aviation Inc. 525B, 560 | 2024-10-18 | current |
| Hemico INC. | O-Ring HEM68-1413 | 68-1413 | Textron Aviation Inc. 750 | 2024-10-18 | current |
| Hemico INC. | O-Ring HEM68-1448 | 68-1448 | De Havilland... DHC-8-400 Series | 2024-10-18 | current |
| Hemico INC. | O-Ring HEM68-1264 | 68-1264 | Textron Aviation Inc. 560XL | 2024-10-18 | current |
| Hemico INC. | O-Ring HEM68-448 | 68-448 | Textron Aviation Inc. 700, 680, 680A | 2024-10-18 | current |
| Hemico INC. | Ring HEM114-810067-1 | 114-810067-1 | Textron Aviation Inc. B300, B300C, 1900 | 2024-10-18 | current |
| Hemico INC. | O-Ring HEM68-1363 | 68-1363 | Airbus SAS A330-201, A330-202, A330-203 | 2024-10-18 | current |
| Hemico INC. | RING, SCRAPER HEM90100-710 | VBYSF90100-710 | Embraer S.A. EMB-120, EMB-120RT, EMB-120ER | 2024-10-18 | current |
| Hemico INC. | O-Ring HEM68-216 | 68-216 | De Havilland... DHC-8-100 Series, DHC-8-200 Series,... | 2024-10-17 | current |
| Hemico INC. | O-Ring HEM68-1577 | 68-1577 | De Havilland... DHC-8-400 Series | 2024-10-17 | current |
| Hemico INC. | O-Ring HEM68-450 | 68-450 | De Havilland... DHC-8-100 Series, DHC-8-200 Series,... | 2024-10-17 | current |
| Hemico INC. | O-Ring HEM68-269 | 68-269 | De Havilland... DHC-8-400 Series | 2024-10-17 | current |
| Hemico INC. | O-Ring HEM68-1569 | 68-1569 | De Havilland... DHC-8-400 Series | 2024-10-17 | current |
| Hemico INC. | O-Ring HEM68-1125 | 68-1125 | De Havilland... DHC-8-400 Series | 2024-10-17 | current |
| Hemico INC. | O-Ring HEM68-1576 | 68-1576 | De Havilland... DHC-8-400 Series | 2024-10-17 | current |
| Jet Avion Corporation A Heico Aerospace Company | Ring, Backup Packing 2682063-137JA | 2682063-137 | CFM International CFM56-7B20, CFM56-7B20E, CFM56-7B22/B1 | 2024-10-09 | current |
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.