Relief Valve
82 failure reports named the relief valve in the last ten years, 366 since 1995, most often on the Boeing 767; the condition most often found was "failed". 152 FAA approvals let 25 companies make a replacement relief valve, Circor Aerospace, INC. holding the most (30). The reports call it "relief valve", "relief valve".
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1995 | 8 |
| 1996 | 17 |
| 1997 | 13 |
| 1998 | 8 |
| 1999 | 4 |
| 2000 | 18 |
| 2001 | 22 |
| 2002 | 18 |
| 2003 | 16 |
| 2004 | 13 |
| 2005 | 16 |
| 2006 | 17 |
| 2007 | 12 |
| 2008 | 11 |
| 2009 | 14 |
| 2010 | 10 |
| 2011 | 18 |
| 2012 | 11 |
| 2013 | 13 |
| 2014 | 13 |
| 2015 | 12 |
| 2016 | 8 |
| 2017 | 6 |
| 2018 | 14 |
| 2019 | 16 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 10 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 7 |
Which system the reports file it under last ten years
Models most often reporting it last ten years
Boeing 76717Boeing 73710Bombardier CL-600 Challenger and CRJ10Boeing 7578Airbus A3305Airbus A3194Airbus A3003Cessna 560 Citation V, Ultra, Encore and Excel2Douglas DC-92Embraer EMB-505 Phenom 3002Embraer ERJ 170 E170 and E1752Mcdonnell Douglas Aircraft Co MD-882
Models most reported, as a table
How it failed the condition found, last ten years
failed19faulty10leaking9malfunctioned9faulted5inoperative5damaged3defective3unserviceable3obstructed2
Conditions found, as a table
| reports | |
|---|---|
| failed | 19 |
| faulty | 10 |
| leaking | 9 |
| malfunctioned | 9 |
| faulted | 5 |
| inoperative | 5 |
| damaged | 3 |
| defective | 3 |
| unserviceable | 3 |
| obstructed | 2 |
Engines most often reporting it
Approved replacement parts 152 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a relief valve and sell it as an approved part for the models named. These are the companies holding such approvals for a relief valve:
Circor Aerospace, INC. 30Crissair INC 24Circle Seal Controls INC 17Parker Hannifin CORP 12Aerocontrolex Group, Transdigm INC 8Eaton Aerospace Sterer Engineering 7Gulfstream Aerospace LP 5Pneudraulics INC 4Jet Parts Engineering INC 4Jab Aero CORP 4Honeywell International US LLC 4Galaxy Aerospace CO LP 4Ge Aviation Systems LLC (Formerly Smiths and Barbar Coleman) 4Aero Fluid Products 4Hr Textron INC 3Vickers INC, Fluid Control and Actuation Div 2Shimadzu Precision Instruments, INC. 2Lori INC 2Jet Avion Corporation A Heico Aerospace Company 2Honeywell International INC. 2Hartzell Engine Technologies LLC 2B/E Aerospace INC, Lenexa Facility 2Allen Aircraft Products 2Wencor LLC (Formerly Dixie Aerospace LLC) 1Parker Hannifin CORP, Nichols Airborne Division 1
For these models most: Boeing 737 (28), Boeing 747 (18), Mcdonnell Douglas DC-10 (15), Boeing 727 (13), Mcdonnell Douglas MD-11 (12), Israel Aircraft Industries GALAXY (10), Boeing 757 (10), Boeing 767 (9), Mcdonnell Douglas DC-9 (8), Israel Aircraft Industries ASTRA SPX (5), Israel Aircraft Industries 1125 (5), Douglas DC-8 (5).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Aviation Component Solutions | Relief Valve Assy P00336 | 967070-23 | The Boeing Company 737-900 Series, 737-900ER Series | 2024-12-02 | current |
| Circor Aerospace, INC. | Relief Valve 532T1-1M-140 | 532T1-1M-140 | Airbus SAS A319-111, A319-112, A319-113 | 2024-09-17 | current |
| Circor Aerospace, INC. | Relief Valve 532T1-1M-140 | 532T1-1M-140 | Airbus SAS A320-211, A320-212, A320-214 | 2024-09-17 | current |
| Circor Aerospace, INC. | Relief Valve 532T1-1M-140 | 532T1-1M-140 | Airbus SAS A321-111, A321-112, A321-132 | 2024-09-17 | current |
| Circor Aerospace, INC. | Relief Valve 532T1-1M-140 | 532T1-1M-140 | Airbus SAS A318-111, A318-112, A318-121 | 2024-09-17 | current |
| Jet Avion Corporation A Heico Aerospace Company | Relief Valve Housing Assembly-Two-Piece Design 5007324JA | 5007324 | International Aero... V2522-A5, V2524-A5, V2527-A5 | 2023-12-01 | current |
| Jet Avion Corporation A Heico Aerospace Company | Relief Valve Assembly 5008470BJA | 5008470B | International Aero... V2522-A5, V2524-A5, V2527-A5 | 2023-12-01 | current |
| Shimadzu Precision Instruments, INC. | Relief Valve Assy 734-17980-01 | 60B00269-5 | The Boeing Company 767-400ER | 2023-11-27 | current |
| Honeywell International INC. | Relief Valve 3224892-1 | 3224892-1 | The Boeing Company MD-11, MD-11F | 2023-02-14 | current |
| Honeywell International INC. | Relief Valve 1011362 | 1011362 | McDonnell Douglas DC-8-11, DC-8-12, DC-8-21 | 2022-02-23 | current |
| Jet Parts Engineering INC | Relief Valve Assy 3162389JP-35 | 3162389-35 | Boeing 737-900ER Series | 2019-11-28 | current |
| Ao Aviation, LLC | Relief Valve Assy 1002301 | 1002301 | Quest Aircraft Company Kodiak 100 | 2018-08-12 | current |
| Hydro-Aire Incorporated | Relief Valve 316565 | 316565 | Boeing 737-8 | 2017-08-13 | current |
| Parker Hannifin CORP | Relief Valve, Center Tank Pressure 2090216-102 | 2090216-102 | Bombardier BD-500-1A11 | 2017-01-12 | current |
| Parker Hannifin CORP | Relief Valve, Center Tank Pressure 2090216-102 | 2090216-102 | Bombardier BD-500-1A10 | 2017-01-12 | current |
| Parker Hannifin CORP | Relief Valve, Center Tank Negative Pressure 2090217-102 | 2090217-102 | Bombardier BD-500-1A10 | 2017-01-12 | current |
| Parker Hannifin CORP | Relief Valve, Center Tank Negative Pressure 2090217-102 | 2090217-102 | Bombardier BD-500-1A10 | 2016-08-24 | current |
| Parker Hannifin CORP | Relief Valve, Center Tank Pressure 2090216-102 | 2090216-102 | Bombardier BD-500-1A10 | 2016-08-24 | current |
| Crissair INC | Relief Valve 2R2850 | 2R2850 | Boeing 727 Series, 727-100 Series, 727C Series | 2016-01-05 | current |
| Crissair INC | Relief Valve 2R2846 | 2R2846 | Boeing 727 Series, 727-100 Series, 727C Series | 2016-01-05 | current |
| Crissair INC | Relief Valve 2R3088-1 | 10-62072-1 | Boeing 737-400 Series | 2016-01-05 | current |
| Crissair INC | Relief Valve 2R2732 | 2R2732 | Boeing 727 Series, 727-100 Series, 727C Series | 2016-01-05 | current |
| Crissair INC | Relief Valve 3R1636 | 3R1636 | Boeing DC-10-10, DC-10-10F, DC-10-15 | 2016-01-05 | current |
| Crissair INC | Relief Valve 3R1558 | 3R1558 | Boeing DC-9-14, DC-9-15, DC-9-15F | 2016-01-05 | current |
| Shimadzu Precision Instruments, INC. | Relief Valve Assy 734-17980-01 | 60B00269-5 | Boeing 767-400ER | 2015-05-14 | current |
| Circor Aerospace, INC. | Relief Valve P20-349-A | P20-349-A | Fokker Aircraft F28MK 100 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve P15-383 | P15-383 | Boeing 747-100, -200, -400 Series | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve 849A-6BT-56 | 849A-6BT-56 | Boeing 707 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve 562T-4DB-25 | 562T-4DB-25 | Boeing 717-200 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve 532T-1M-140 | 532T-1M-140 | Boeing 737-300, 400, 500 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve P15-383 | P15-383 | Boeing 777-200 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve D524TP-6D-45 | D524TP-6D-45 | Boeing 747 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve RV05-362 | RV05-362 | Boeing 767-200, 300 Series) (747-400 Series | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve P18-771 | P18-771 | McDonnell Douglas DC-10 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve D52424TP6D60 | D52424TP6D60 | Boeing 737-300, -400, -500 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve 562A-6D-35 | V25W712012-501 | Israel Aircraft Galaxy | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve CSC P15-383 | P15-383 | Boeing 747 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve P65-673 | P65-673 | McDonnell Douglas DC-10 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve P65-673 | P65-673 | McDonnell Douglas MD-11, MD-11F | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve P20-534-12 | P20-534-12 | McDonnell Douglas DC-10 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve P44-771 | P44-771 | Canadair CL600-2B19 (Regional Jet Series 100) | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve RV05-362 | RV05-362 | Boeing 737-300, -400, 757-200 Series | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve 562A-4DJ-45 | 562A-4DJ-45 | Boeing 757-200 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve RV62-9 | RV62-9 | Boeing 747-400 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve RV99-162 | RV99-162 | Fokker Aircraft F28MK 100 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve 520A-6DB-50 | 520A-6DB-50 | Boeing 737 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve 562A6DL95 | 562A6DL95 | Boeing 767-200, -300 Series) (757-200 Series | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve RV05-361 | RV05-361 | Boeing 747-200 Series | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve 5159T-10TT-50 | 5159T-10TT-50 | McDonnell Douglas DC-9 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve RV05-362 | RV05-362 | Boeing 777-200 | 2015-05-03 | current |
| Circor Aerospace, INC. | Relief Valve 5124T-8T6T-50 | 5124T-8T6T-50 | McDonnell Douglas DC-10 | 2015-05-03 | current |
| Crissair INC | Relief Valve 2R2732 | 2R2732 | Boeing 727 Series, 727-100 Series, 727C Series | 2014-10-27 | current |
| Crissair INC | Relief Valve 3R1558 | 3R1558 | Boeing DC-9-14, DC-9-15, DC-9-15F | 2014-10-27 | current |
| Crissair INC | Relief Valve 3R1636 | 3R1636 | Boeing DC-10-10, DC-10-10F, DC-10-15 | 2014-10-27 | current |
| Crissair INC | Relief Valve 2R2846 | 2R2846 | Boeing 727 Series, 727-100 Series, 727C Series | 2014-10-27 | current |
| Crissair INC | Relief Valve 2R2850 | 2R2850 | Boeing 727 Series, 727-100 Series, 727C Series | 2014-10-27 | current |
| Crissair INC | Relief Valve 3R2022 | 3R2022 | Boeing DC-9-82 (MD-82) | 2014-10-19 | current |
| Crissair INC | Relief Valve 2R3852 | 2R3852 | Boeing MD-90-30 | 2014-10-19 | current |
| Crissair INC | Relief Valve 2R3680 | 2R3680 | Boeing 737-600 Series, 737-700 Series,... | 2014-10-19 | current |
| Crissair INC | Relief Valve 2R3324 | 2R3324 | The Boeing Company 737-700C Series | 2014-10-16 | current |
| Crissair INC | Relief Valve 2R3324 | 2R3324 | The Boeing Company 757-200CB Series, 757-200PF Series | 2014-10-16 | current |
| Dassault Falcon Jet CORP | Relief Valve F50-41902-71 | Modification Part | Dassault Aviation Falcon 50 | 2014-10-09 | current |
| Pats Aircraft LLC | Relief Valve Cover Assembly 42958-19 | 42958-19 | Fokker F28MK0100 limited to serial numbers... | 2013-08-15 | current |
| Aero Fluid Products | Relief Valve C3310-01 | Argo-Tech P/N 829585. | General Electric CF34-8C1, CF34-8C5, CF34-8E | 2013-07-23 | current |
| Aero Fluid Products | Relief Valve C2875-01 | Eaton Aerospace P/N 49438. | Boeing 747-100, 747-200, 747-300 | 2013-07-23 | current |
| Aero Fluid Products | Relief Valve C1645-02 | General Electric 9191M35P02 | General Electric CF6-80C2 | 2013-07-23 | current |
| Aero Fluid Products | Relief Valve C2911-02 | Argo-Tech P/N 218889 | Snecma CFM-56-7B | 2013-07-23 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Relief Valve 532T1-1M-140WD | 532T1-1M-140 | Airbus A300 Series, A300, Model B2-1A | 2013-05-16 | current |
| Hartzell Engine Technologies LLC | Relief Valve 470944-0015 | Cessna Aircraft C402002-0110 | Cessna P210R, 340A, 402C | 2013-02-24 | current |
| Jet Parts Engineering INC | Relief Valve Assembly 3162389JP-35 | 3162389-35 | Boeing 737-300 Series, 737-400 Series,... | 2012-05-15 | current |
| Crissair INC | RELIEF VALVE 2R3852 | (2R3852) | BOEING A6WE MD-90-30 | 2012-02-13 | current |
| Hartzell Engine Technologies LLC | Relief Valve 470944-0015 | Cessna Aircraft C402002-0110 | Cessna P210R, 340A, 402C 414 | 2010-10-21 | current |
| Jet Parts Engineering INC | Relief Valve Assembly 3162389JP-35 | 3162389-35 | Boeing 737-600/ -700/ -700C/ -800/ -900 Series | 2010-09-19 | current |
| Jet Parts Engineering INC | Relief Valve 5904050JP | 5904050 | Pratt & Whitney PW2037, PW2037M, PW2040 | 2010-04-04 | current |
| Jab Aero CORP | Relief Valve JM12042-1 | B/E Aerospace P/N 62-0223-1 | Embraer ERJ 170-200 Series, ERJ 190 Series | 2009-11-12 | current |
| B/E Aerospace INC, Lenexa Facility | Relief Valve- Pressure B43577-1 | B43577-1 | Airbus A330-201, -202, -203 | 2009-09-15 | current |
| Kelly Aerospace Power Systems, INC. | Relief Valve CFRA7427 | RA7427 | Lycoming IO- 320 C1A, F1A LIO-320 C1A IO-360... | 2009-04-06 | current |
| Ge Aviation Systems LLC (Formerly Smiths and Barbar Coleman) | RELIEF VALVE ASSY AV18-B1018 | AV18-B1018 | Boeing 737-100 Series, 737-200 Series,... | 2008-04-21 | current |
| Ge Aviation Systems LLC (Formerly Smiths and Barbar Coleman) | RELIEF VALVE ASSY AV18-B1018 | AV18-B1018 | Boeing 737-100 Series, 737-200 Series,... | 2007-11-04 | current |
| B/E Aerospace INC, Lenexa Facility | Relief Valve-Press 4441026-010 | 4441026-010 | Airbus A319-111, -112, -113 | 2006-04-17 | current |
| Aerocontrolex Group, Transdigm INC | Relief Valve C2875-01 | Eaton Aerospace P/N 49438. | Boeing 747-100, 747-200, 747-300 | 2006-02-22 | current |
| Aerocontrolex Group, Transdigm INC | Relief Valve C3310-01 | Argo-Tech P/N 829585. | General Electric CF34-8C1, CF34-8C5, CF34-8E | 2006-02-22 | current |
| Aerocontrolex Group, Transdigm INC | Relief Valve C2911-02 | Argo-Tech P/N 218889. | CFM International CFM-56-7B | 2006-02-22 | current |
| Aerocontrolex Group, Transdigm INC | Relief Valve C1645-02 | General Electric 9191M35P02 | General Electric CF6-80C2 | 2006-02-22 | current |
| Jab Aero CORP | Relief Valve JM12042-1 | B/E Aerospace 62-0223-1 | Airbus A321 series, A330 series | 2005-03-08 | current |
| Jab Aero CORP | Relief Valve JM12042-1 | 62-0223-1 (BE Aerospace) | McDonnell Douglas DC10-30 Series with Coffee Maker Installed | 2005-02-28 | current |
| Aerocontrolex Group, Transdigm INC | Relief Valve Ass'y 373048-3 | Honeywell 373048-3 | Boeing 737-100, -200, -300 | 2004-10-14 | current |
| Aerocontrolex Group, Transdigm INC | Relief Valve Ass'y 373048-1 | Honeywell 373048-1 | Boeing 727 Series, -100 Series, -100C Series | 2004-10-14 | current |
| Allen Aircraft Products | Relief Valve 16C267-1 | Piaggio Aero Industries S.p.A. 16C267-1 | Piaggio P180 | 2004-07-20 | current |
| Allen Aircraft Products | Relief Valve 10C267-1 | Piaggio Aero Industries S.p.A. 10C267-1 | Piaggio P180 | 2004-07-20 | current |
| Crissair INC | RELIEF VALVE 2R3324 | 2R3324 | Boeing 737-700C Series, 757-200CB Series,... | 2004-05-27 | current |
| Circle Seal Controls INC | Relief Valve 562-4DB-25 | 562-4DB-25 | Boeing 717-200 | 2004-03-02 | current |
| Circle Seal Controls INC | Relief Valve 562T-4DB-25 | 562T-4DB-25 | Boeing 717-200 | 2004-03-02 | current |
| Ge Aviation Systems LLC (Formerly Smiths and Barbar Coleman) | Relief Valve Assembly AV18-B1018 | AV18-B1018 | Boeing 727 Series, 737-100 Series, 737-200 Series | 2003-07-16 | current |
| Ge Aviation Systems LLC (Formerly Smiths and Barbar Coleman) | Relief Valve Assembly AV18-B1018 | Modification Part | Boeing 727 Series, 737-100 Series, 737-200 Series | 2003-04-16 | current |
| Parker Hannifin CORP | Relief Valve 2000031-102 | 2000031-102 | Embraer Empresa EMB-145, EMB-145ER, EMB-145MR | 2002-09-12 | current |
| Lori INC | Relief Valve Assembly L8602198 | United Aircraft Products, Inc. U539480 | Boeing 737-300 Series, 737-400 Series, and... | 2002-01-10 | current |
| Crissair INC | Relief Valve 3R2022 | 3R2022 | McDonnell Douglas DC-9-82 | 2001-09-18 | current |
| Aerocontrolex Group, Transdigm INC | Relief Valve Assembly 373048-3 | Honeywell 373048-3 | Boeing 727-100, -200, 737-100 | 2001-09-17 | current |
| Aerocontrolex Group, Transdigm INC | Relief Valve Assembly 373048-1 | Honeywell 373048-1 | Boeing 727-100, -100C, -200 | 2001-08-27 | current |
| Jab Aero CORP | Relief valve JM12042-1 | B/E Arospace 62-0223-1 As installed in B/E... | Airbus A320 series,... | 2001-08-15 | current |
| Gulfstream Aerospace LP | Relief Valve 4AS7130140-001 | IAI 4AS7130140-001 | Gulfstream Galaxy | 2001-06-06 | current |
| Gulfstream Aerospace LP | Relief Valve, Hyd. Cartridge Type 25W712017-503 | IAI V25W712017-503 | Gulfstream Galaxy, 1125 Westwind Astra, Astra SPX | 2001-06-06 | current |
| Gulfstream Aerospace LP | Relief Valve, Hyd. Cartridge Type 25W712017-501 | IAI V25W712017-501 | Gulfstream Galaxy, 1125 Westwind Astra, Astra SPX | 2001-06-06 | current |
| Gulfstream Aerospace LP | Relief Valve 25W712012-501 | IAI 25W712012-501 | Gulfstream Galaxy, 1125 Westwind Astra, Astra SPX | 2001-06-06 | current |
| Gulfstream Aerospace LP | Relief Valve 723596-501 | IAI 3723596-501 | Israel 1124 | 2001-06-06 | current |
| Galaxy Aerospace CO LP | Relief Valve, Hyd. Cartridge Type 25W712017-503 | IAI V25W712017-503 | Gulfstream Galaxy, 1125 Westwind Astra, Astra SPX | 2001-05-08 | current |
| Galaxy Aerospace CO LP | Relief Valve 25W712012-501 | IAI 25W712012-501 | Gulfstream Galaxy, 1125 Westwind Astra, Astra SPX | 2001-05-08 | current |
| Galaxy Aerospace CO LP | Relief Valve 723596-501 | IAI 3723596-501 | Israel 1124 | 2001-05-08 | current |
| Galaxy Aerospace CO LP | Relief Valve 4AS7130140-001 | IAI 4AS7130140-001 | Gulfstream Galaxy | 2001-05-08 | current |
| Eaton Aerospace Sterer Engineering | Relief Valve Rudder Limiter 48840 | 673935-101 | Lockheed L-1011-385-3 (-500) | 2000-11-07 | current |
| Eaton Aerospace Sterer Engineering | Relief Valve 62630-1 | 62630-1 | Boeing 767 | 2000-11-07 | current |
| Eaton Aerospace Sterer Engineering | Relief Valve 68770-1 | S271N202-3 | Boeing 757 | 2000-11-07 | current |
| Eaton Aerospace Sterer Engineering | Relief Valve 62630 | 60B00269-2 | Boeing 747 | 2000-11-07 | current |
| Eaton Aerospace Sterer Engineering | Relief Valve 62630-4 | 60B00269-4 | Boeing 757 | 2000-11-07 | current |
| Eaton Aerospace Sterer Engineering | Relief Valve 71890 | 71890 | Boeing 747 (ALL) | 2000-11-07 | current |
| Eaton Aerospace Sterer Engineering | Relief Valve 84650 | 84650 | Boeing 747-400 | 2000-11-07 | current |
| Pti Technologies INC | Relief Valve Assembly 7585802 | Boeing 7585802 | Boeing 767-200, -300, -300F Series | 2000-09-07 | current |
| Crissair INC | Relief Valve 2R3736 | 4AS130140-001 | Gulfstream Galaxy | 1999-11-02 | current |
| Crissair INC | Relief Valve 1C4046 | 4AS7130150-001 | Gulfstream Galaxy | 1999-11-02 | current |
| Vickers INC, Fluid Control and Actuation Div | Relief Valve 71890 | Boeing 71890 | Boeing 747 (all) | 1999-10-24 | current |
| Vickers INC, Fluid Control and Actuation Div | Relief Valve 84650 | Boeing 84650 | Boeing 747-400 | 1999-10-24 | current |
| Machen INC | Relief Valve 090-1030-( ) | Modification Parts | Beech Raytheon) (36, A36, S35 | 1999-02-18 | current |
| Parker Hannifin CORP, Nichols Airborne Division | Relief Valve 38-87003-2009-3NAD | Allison Engine 38-87003-2009-3 | Allison Engine AE2100A, AE2100C, AE2100D3 | 1999-02-11 | current |
| Crissair INC | Relief Valve 2R3680 | Boeing 2R3680 | Boeing 737-700, 737-600 | 1998-10-18 | current |
| Essex Cryogenics of Missouri INC | Relief Valve 20C-0050-5 | 20C-0050-5 | Eurocopter Deutschland MBB-BK 117B, s/n 7234, 7237 | 1998-03-26 | current |
| Honeywell International US LLC | Relief Valve 1011363-1 | McDonnell Douglas 1011363-1 | McDonnell Douglas DC-8 Series | 1997-02-17 | current |
| Honeywell International US LLC | Relief Valve 3329490-1 | McDonnell Douglas 3329490-1 | McDonnell Douglas DC-8, DC-8 Series | 1997-02-17 | current |
| Honeywell International US LLC | Relief Valve 1011362 | McDonnell Douglas 1011362 | McDonnell Douglas DC-8 Series | 1997-02-17 | current |
| Crissair INC | Relief Valve 2R3734 | McDonnell Douglas 2R3734 | McDonnell Douglas MD-11 | 1996-08-07 | current |
| Honeywell International US LLC | Relief Valve 470944-0015 | Cessna C402002-0110 | Cessna P210R, 340A, 402C | 1996-07-10 | current |
| Circle Seal Controls INC | Relief Valve P15-383 | Boeing P15-383 | Boeing 777-200 | 1995-12-18 | current |
| Circle Seal Controls INC | Relief Valve RV05-362 | Boeing RV05-362 | Boeing 777-200 | 1995-12-18 | current |
| Circle Seal Controls INC | Relief Valve 532T-1M-140 | Boeing 532T-1M-140 | Boeing 737-300, 400, 500 | 1995-12-18 | current |
| Pneudraulics INC | Relief Valve 4660-4 | Canadair 4660-4 | Bombardier, Inc. CL215-1A10, CL215-6B11 | 1995-11-30 | current |
| Circle Seal Controls INC | Relief Valve D52424TP6D60 | Boeing D52424TP6D60 | Boeing 737-300, 737-400, 737-500 | 1994-08-18 | current |
| Circle Seal Controls INC | Relief Valve RV62-9 | Boeing RV62-9 | Boeing 747-400 | 1994-08-18 | current |
| Circle Seal Controls INC | Relief Valve P65-673 | P65-673 | McDonnell Douglas DC-10, MD-11, -11F | 1993-10-05 | current |
| Circle Seal Controls INC | Relief Valve 5124T-12TT-50 | 5124T-12TT-50 | McDonnell Douglas DC-10 | 1993-10-05 | current |
| Circle Seal Controls INC | Relief Valve 5124T-8T6T-50 | 5124T-8T6T-50 | McDonnell Douglas DC-10 | 1993-10-05 | current |
| Circle Seal Controls INC | Relief Valve 5159T-10TT-50 | 5159T-10TT-50 | McDonnell Douglas DC-9 | 1993-10-05 | current |
| Circle Seal Controls INC | Relief Valve P20-534-12 | P20-534-12 | McDonnell Douglas DC-10 | 1993-10-05 | current |
| Circle Seal Controls INC | Relief Valve P18-771 | P18-771 | McDonnell Douglas DC-10 | 1993-10-05 | current |
| Pneudraulics INC | Relief Valve 2530-1 | Canadair 601R75119-1 | Bombardier, Inc. CL-600-2A12 (CL-601) | 1993-08-04 | current |
| Pneudraulics INC | Relief Valve 4619-3 | Canadair 4619-3 | Bombardier, Inc. CL-600-2A12 (CL-601) | 1993-08-04 | current |
| Pneudraulics INC | Relief Valve 4622 | Canadair 4622 | Bombardier, Inc. CL-600-2B16 (CL-601-3A) | 1993-08-04 | current |
| Circle Seal Controls INC | Relief Valve CSC P15-383 | CSC P15-383 | Boeing 747 | 1993-04-25 | current |
| Circle Seal Controls INC | Relief Valve CSC D524TP-6D-45 | CSC D524TP-6D-45 | Boeing 747 | 1993-04-25 | current |
| Circle Seal Controls INC | Relief Valve 520A-6DB-50 | 520A-6DB-50 | Boeing 737 | 1993-04-25 | current |
| Circle Seal Controls INC | Relief Valve 849A-6BT-56 | 849A-6BT-56 | Boeing 707 | 1993-04-25 | current |
The first 150 of 163.
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.