Bleed Air
185 failure reports named the bleed air in the last ten years, 393 since 1995, most often on the Boeing 767; the condition most often found was "odor". 113 FAA approvals let 25 companies make a replacement bleed air, Honeywell International INC. holding the most (23). The reports call it "bleed air sys", "bleed air", "bleed air duct", "bleed air line", "bleed air valve" and 7 other ways.
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1995 | 9 |
| 1996 | 14 |
| 1997 | 15 |
| 1998 | 9 |
| 1999 | 4 |
| 2001 | 1 |
| 2004 | 4 |
| 2005 | 7 |
| 2006 | 13 |
| 2007 | 13 |
| 2008 | 11 |
| 2009 | 16 |
| 2010 | 23 |
| 2011 | 19 |
| 2012 | 9 |
| 2013 | 19 |
| 2014 | 15 |
| 2015 | 7 |
| 2016 | 10 |
| 2017 | 11 |
| 2018 | 21 |
| 2019 | 15 |
| 2020 | 15 |
| 2021 | 8 |
| 2022 | 21 |
| 2023 | 5 |
| 2024 | 30 |
| 2025 | 30 |
| 2026 | 19 |
Which system the reports file it under last ten years
Reports by system, as a table
| reports | |
|---|---|
| Engine | 119 |
| Heating, ice protection and utility systems | 65 |
| Emergency equipment | 1 |
Models most often reporting it last ten years
Boeing 76739Airbus A32120Embraer ERJ 170 E170 and E17520Airbus A32018Boeing 73715Boeing 75710Airbus A3195Bombardier CL-600 Challenger and CRJ5Embraer EMB-145 ERJ 1455Airbus A3304Cessna 680 Citation Sovereign and Latitude4Bombardier BD-100 Challenger 300 and 3503
Models most reported, as a table
How it failed the condition found, last ten years
odor29leaking26malfunctioned22faulted19failed13contaminated12inoperative7warning message7low pressure5fluctuates4
Conditions found, as a table
| reports | |
|---|---|
| odor | 29 |
| leaking | 26 |
| malfunctioned | 22 |
| faulted | 19 |
| failed | 13 |
| contaminated | 12 |
| inoperative | 7 |
| warning message | 7 |
| low pressure | 5 |
| fluctuates | 4 |
Engines most often reporting it
CFM International CFM56 series 4General Electric CF34-8E5 2General Electric CF34 series 2Pratt & Whitney PW1524G SERIE 2Pratt & Whitney PW4060 2Allison (Rolls-Royce) AE 3007A 1CFM International CFM56-5B3/3 1Garrett (Honeywell) TFE731-2-2B 1General Electric CF6-80C2B6F 1General Electric CF6-80C2B7F 1
Approved replacement parts 113 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a bleed air and sell it as an approved part for the models named. These are the companies holding such approvals for a bleed air:
Honeywell International INC. 23Nextant Aerospace LLC 14Honeywell International INC 13Air Comm Corporation 10Parker Hannifin CORP 6Ge Aviation Systems LLC (Formerly Smiths and Barbar Coleman) 6Duncan Aviation INC 4American Eurocopter LLC 4Valcor Engineering CORP 3Rosemount Aerospace INC 3Flexfab INC 3Enviro Systems INC. 3Itt Aerospace Controls 2Heritage Aviation LTD 2Frakes Aviation 2Devore Aviation CORP of America 2Dv Aviation, INC. 2Airforce Turbine Service 2Airbus Helicopters, INC. 2Aerospace Welding Minneapolis, INC. 2Woodward Mpc 1Tradewind Turbines CORP 1Soloy LLC 1Raisbeck Engineering INC 1Parker Hannifin CORP, Nichols Airborne Division 1
For these models most: Beechcraft 400 Beechjet (14), Boeing 737 (9), Messerschmitt-Boelkow-Blohm BO-105 (6), Dassault FALCON 2000 (6), Boeing 767 (6), Bombardier CL-600 Challenger and CRJ (5), Bell 222 (5), Learjet 55 (4), Learjet 35 (4), Boeing 757 (4), Boeing 727 (3), Leonardo Spa AW139 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Air Comm Corporation | Bleed Air Cabin Heating / Windshield Defroster System MDLDL-A109H | Modification Article | Leonardo S.p.A. A109A, A109AII, A109C | 2026-08-31 | current |
| Air Comm Corporation | Bleed Air Cabin Heating System 222H-100-1 | Modification Article | Bell Textron Canada Limited 222U | 2026-08-31 | current |
| Air Comm Corporation | Bleed Air Cabin Heating System 430H-201-1 | Modification Article | Bell Textron Canada Limited 430 | 2026-08-31 | current |
| Air Comm Corporation | Bleed Air Cabin Heating System 222H-100-2 | Modification Article | Bell Textron Canada Limited 222, 222B | 2026-08-31 | current |
| Air Comm Corporation | Bleed Air Cabin Heating System 430H-201-1 | Modification Article | Bell Textron Canada Limited 430 | 2025-02-10 | current |
| Air Comm Corporation | Bleed Air Cabin Heating System 222H-100-1 | Modification Article | Bell Textron Canada Limited 222U | 2025-02-10 | current |
| Air Comm Corporation | Bleed Air Cabin Heating System 222H-100-2 | Modification Article | Bell Textron Canada Limited 222, 222B | 2025-02-10 | current |
| Air Comm Corporation | Bleed Air Cabin Heating / Windshield Defroster System MDLDL-A109H | Modification Article | Leonardo S.p.A. A109A, A109AII, A109C | 2025-02-10 | current |
| Enviro Systems INC. | Bleed Air Trim Valve 1300590-1 | 3G2141V11251 | Leonardo S.p.a AW139 | 2024-10-28 | current |
| Enviro Systems INC. | Bleed Air Trim Valve 1300590-2 | 3G2140V01651 | Leonardo S.p.a AW139 | 2024-10-28 | current |
| Fifty-Ten-Yankee LLC | Bleed Air Heater MDL 730-100 | ModificationPart | Textron Aviation Inc. 207, T207207A, T207A | 2023-06-14 | current |
| Dv Aviation, INC. | Bleed Air Heater Kit 720-1000-1 | Modification Article | Textron Aviation Inc. U206G, TU206G | 2023-06-08 | current |
| Dv Aviation, INC. | Bleed Air Heater Kit 730-1000-1 | Modification Article | Textron Aviation Inc. 207, T207, 207A | 2023-06-08 | current |
| Honeywell International INC. | Bleed Air Valve 3213722-2-1 | 3213722-2-1 | Lockheed Martin Corporation 382 | 2023-05-02 | current |
| Honeywell International INC. | Bleed Air Check Valve 3202072-3-1 | 3202072-3-1 | MHI RJ Aviation ULC CL-600-2B19 (Regional Jet Series 100) | 2023-03-28 | current |
| Honeywell International INC. | Bleed Air Valve 04P23-12 | 52G515 Rev. Original 8/17/00 | Pratt & Whitney PW4052, PW4056, PW4060 | 2023-03-25 | current |
| Honeywell International INC. | Bleed Air Valve 04P23-9 | 51G802-002 | Pratt & Whitney PW4052, PW4056, PW4060 | 2023-03-25 | current |
| Honeywell International INC. | Bleed Air Valve 04P23-7 | 51G802-001 Rev. Original 10/9/95 | Pratt & Whitney PW4052, PW4056, PW4060 | 2023-03-25 | current |
| Honeywell International INC. | Bleed Air Valve 04P23-6 | 51G804 Rev. Original 12/20/88 | Pratt & Whitney Division PW4050, PW4052, PW4056 | 2023-03-23 | current |
| Honeywell International INC. | Bleed Air Valve 04P23-5 | 51G802Rev. Original 12/20/88 | Pratt & Whitney Division PW4050, PW4052, PW4056 | 2023-03-23 | current |
| Honeywell International INC. | Bleed Air Shutoff Valve 979998-3 | 604-97601-3 | Bombardier Inc. CL-600-2A12 (CL601), CL-600-2B16... | 2023-03-18 | current |
| Honeywell International INC. | Bleed Air Shutoff Valve 979998-2 | 604-97601-1 | Bombardier Inc. CL-600-2A12 (CL601), CL-600-2B16... | 2023-03-18 | current |
| Honeywell International INC. | Bleed Air Valve 898772-1 | 9118M97P02 | General Electric Company CF6-50A, CF6-50C, CF6-50CA | 2023-03-10 | current |
| Honeywell International INC. | Bleed Air Temp Sensor 129626-5 | S212N102-12 | The Boeing Company 757-200 Series, 757-200PF Series,... | 2023-02-21 | current |
| Honeywell International INC. | Bleed Air Over Temp Sensor 129682-5 | S212N102-11 | The Boeing Company 757-200 Series, 757-200PF Series,... | 2023-02-21 | current |
| Honeywell International INC. | Bleed Air Temp Sensor 129626-6 | S212N101-36 | The Boeing Company 757-200 Series, 757-200PF Series,... | 2023-02-21 | current |
| Honeywell International INC. | Bleed Air Over Temp Sen 129682-3 | S212N101-26 | The Boeing Company 757-200 Series, 757-200PF Series,... | 2023-02-21 | current |
| Honeywell International INC. | Bleed Air Check Valve 3202222-1 | 10-62008-1 | The Boeing Company 737-800 Series | 2023-02-08 | current |
| Honeywell International INC. | Bleed Air Check Valve 3202222-1 | 10-62008-1 | The Boeing Company 737-600 Series | 2023-02-03 | current |
| Honeywell International INC. | Bleed Air Check Valve 3202222-1 | 10-62008-1 | The Boeing Company 737-300 Series, 737-400 Series,... | 2023-02-03 | current |
| Honeywell International INC. | Bleed Air Duct Assembly 5849606-2 | 5849606-2 | The Boeing Company 737-700 Series | 2023-01-31 | current |
| Honeywell International INC. | Bleed Air Regulator 107492-3 | 10-62008-23 | The Boeing Company 737-300 Series, 737-400 Series,... | 2023-01-31 | current |
| Honeywell International INC. | Bleed Air Reg 107492-2 | 10-62008-23 | The Boeing Company 737-100 Series, 737-200 Series,... | 2023-01-24 | current |
| Honeywell International INC. | Bleed Air Check Valve 3202222-1 | 10-62008-15 | The Boeing Company 737-100 Series, 737-200 Series,... | 2023-01-24 | current |
| Honeywell International INC. | Bleed Air Valve 04P23-8 | 52G226 Rev. Original (8/21/95) | Pratt & Whitney PW4052, PW4056, PW4060 | 2023-01-20 | current |
| Honeywell International INC. | Bleed Air Reverse Flow Check Valve 3202908-1 | 3202908-1 | Gulfstream Aerospace... GIV-X | 2022-12-16 | current |
| Honeywell International INC. Honeywell Aerospace | Bleed Air Precooler 189120-3 | 189120-3 | Airbus A300 Model B2-1C, Model B4-2C, Model B2K-3C | 2021-04-21 | current |
| Aero Fluid Products | Bleed Air Valve, Regulated 1818-00-1A | 1818-00-1A | Dassault Aviation Mystere-Falcon 20-C5, Mystere-Falcon... | 2019-03-11 | current |
| Airbus Helicopters, INC. | Bleed Air Cabin Heater 105-E0009-1 | Modification Part | Airbus Helicopters... BO-105S | 2018-01-16 | current |
| Airbus Helicopters, INC. | Bleed Air Cabin Heater 105-E0009 -2 | Modification Part | Airbus Helicopters... BO-105S | 2018-01-16 | current |
| Devore Aviation CORP of America | Bleed Air Ducting Replacement DAS 1000-3 | Modification Part | Viking Air Limited DHC-6-100, DHC-6-200, DHC-6-300 | 2016-11-15 | current |
| Nextant Aerospace LLC | Bleed Air Utilities - Engine N361601 | Modification Part | Raytheon Aircraft Company 400A | 2016-03-10 | current |
| Nextant Aerospace LLC | Bleed Air Interface Box N219010 | Modification Part | Raytheon Aircraft Company 400A | 2016-03-10 | current |
| Nextant Aerospace LLC | Bleed Air Interface Box Top N995172 | Modification Part | Raytheon Aircraft Company 400A | 2016-03-10 | current |
| Nextant Aerospace LLC | Bleed Air Interface Box Base N995171 | Modification Part | Raytheon Aircraft Company 400A | 2016-03-10 | current |
| Nextant Aerospace LLC | Bleed Air Interface Unit N995170 | Modification Part | Raytheon Aircraft Company 400A | 2016-03-10 | current |
| Nextant Aerospace LLC | Bleed Air Airframe Relay Mounting Panel NX1202005 | Modification Part | Raytheon Aircraft Company 400A | 2016-03-10 | current |
| Nextant Aerospace LLC | Bleed Air Box Relay Mounting Plate N995173 | Modification Part | Raytheon Aircraft Company 400A | 2016-03-10 | current |
| Nextant Aerospace LLC | Bleed Air Interface Box Base N995171 | Modification Part | Raytheon Aircraft Company 400A | 2014-08-12 | current |
| Nextant Aerospace LLC | Bleed Air Interface Box Top N995172 | Modification Part | Raytheon Aircraft Company 400A | 2014-08-12 | current |
| Nextant Aerospace LLC | Bleed Air Interface Unit N995170 | Modification Part | Raytheon Aircraft Company 400A | 2014-08-12 | current |
| Nextant Aerospace LLC | Bleed Air Interface Box N219010 | Modification Part | Raytheon Aircraft Company 400A | 2014-08-12 | current |
| Nextant Aerospace LLC | Bleed Air Airframe Relay Mounting Panel NX1202005 | Modification Part | Raytheon Aircraft Company 400A | 2014-08-12 | current |
| Nextant Aerospace LLC | Bleed Air Box Relay Mounting Plate N995173 | Modification Part | Raytheon Aircraft Company 400A | 2014-08-12 | current |
| Nextant Aerospace LLC | Bleed Air Utilities - Engine N361601 | Modification Part | Raytheon Aircraft Company 400A | 2014-08-12 | current |
| Raisbeck Engineering INC | Bleed Air Overboard Vent Assembly 09LJ-53-260-0037 | Modification Part | Learjet 60 | 2014-07-23 | current |
| Enviro Systems INC. | Bleed Air Heat Exchanger, Sis Air Conditioning 1320260-2 | 1320260-2 | Embraer S.A EMB-505 | 2014-07-01 | current |
| Pall Aeropower Corporation | Bleed Air Cleaner AE86862 | 673396-103 | Lockheed Aeronautical L-1011 | 2012-01-17 | current |
| Frakes Aviation | Bleed Air Duct FA9912-3 | Not Applicable | Cessna Aircraft Company 208B | 2011-08-01 | current |
| Frakes Aviation | Bleed Air Duct FA9912-1 | Not Applicable | Cessna Aircraft Company 208B | 2011-08-01 | current |
| Aerospace Welding Minneapolis, INC. | Bleed Air Duct Assembly 200803-502-001 | Modification Part | Cessna Caravan 208B | 2011-06-29 | current |
| Aerospace Welding Minneapolis, INC. | Bleed Air Closure Plate 200803-503-005 | Modification Part | Cessna Caravan 208B | 2011-06-29 | current |
| Parker Hannifin CORP, Nichols Airborne Division | Bleed Air Shut-Off Valve 24960-2 | V25W781017-001 | Astra 1125WW and SPX) Gulfstream (100 and G150 | 2010-09-29 | current |
| Duncan Aviation INC | Bleed Air Mixing Valve Installation 100305021-4.0.0 | Modification Part | Learjet 35, 35A, 36 | 2010-05-13 | current |
| Duncan Aviation INC | Bleed Air Mixing Valve Installation 100305021-1.0.0 | Modification Part | Learjet 55, 55B, 55C 35 | 2010-05-13 | current |
| Duncan Aviation INC | Bleed Air Mixing Valve Installation 100305021-2.0.0 | Modification Part | Learjet 35, 35A, 36 | 2010-05-13 | current |
| Duncan Aviation INC | Bleed Air Mixing Valve Installation 100305021-3.0.0 | Modification Part | Learjet 35, 35A, 36 | 2010-05-13 | current |
| Honeywell International INC | Bleed Air Duct Assembly 5849606-2 | 5849606-2 | Boeing 737-700 Series | 2008-06-03 | current |
| Apical Industries INC | Bleed Air ECU System B00-13022 | Modification Parts | BELL 212 412 412EP | 2008-02-20 | current |
| Ge Aviation Systems LLC (Formerly Smiths and Barbar Coleman) | BLEED AIR PRESSURE LIMITATION AND SHUT-OFF VALVE RYLB-53181-2 | RYLB-53181-2 | Dassault Aviation Falcon 2000EX | 2007-11-19 | current |
| Ge Aviation Systems LLC (Formerly Smiths and Barbar Coleman) | BLEED AIR PRESSURE LIMITATION AND SHUT OFF VALVE RYLB-53181-1 | RYLB-53181-1 | Dassault Aviation Falcon 2000EX | 2007-11-19 | current |
| Bae Systems Controls INC | BLEED AIR PANEL M15 233T3237-1021 | 233T3237-1021 | The Boeing Company 767-200 SERIES | 2007-10-14 | current |
| Parker Hannifin CORP | Bleed Air Manifold Isolation Valve 2780539-109 | 2780539-109 | Boeing 767-200 Series, 767-300 Series,... | 2006-10-15 | current |
| Parker Hannifin CORP | Bleed Air Manifold Isolation Valve 2780539-110 | 2780539-110 | Boeing 767-200 Series, 767-300 Series,... | 2006-10-15 | current |
| Ge Aviation Systems LLC (Formerly Smiths and Barbar Coleman) | Bleed Air Pressure Limitation and Shut-Off Valve RYLB-53181-1 | RYLB-53181-1 | Dassault Aviation FALCON 2000 EX | 2006-02-08 | current |
| Ge Aviation Systems LLC (Formerly Smiths and Barbar Coleman) | Bleed Air Pressure Limitation and Shut-Off Valve RYLB-53181-2 | RYLB-53181-2 | Dassault Aviation FALCON 2000 EX | 2006-02-08 | current |
| Ge Aviation Systems LLC (Formerly Smiths and Barbar Coleman) | Bleed Air Pressure Limitation and Shut-Off Valve RYLB-53181-2 | RYLB-53181-2 | Dassault Aviation FALCON 2000 EX | 2006-01-18 | current |
| Ge Aviation Systems LLC (Formerly Smiths and Barbar Coleman) | Bleed Air Pressure Limitation and Shut-Off Valve RYLB-53181-1 | RYLB-53181-1 | Dassault Aviation FALCON 2000 EX | 2006-01-18 | current |
| Honeywell International INC | Bleed Air Reverse Flow Check Valve 3202908-1 | 3202908-1 | Gulfstream GIV-X | 2005-04-19 | current |
| Heritage Aviation LTD | Bleed Air Heater and Air Conditioner B64-13020 | Modification Part | Bell 412, 412EP | 2005-04-10 | current |
| Parker Hannifin CORP | Bleed Air Manifold Isolation Valve, 6 Inch 2780539-106 | 2780539-106 | Boeing 767-200 Series, 767-300 Series | 2004-07-29 | current |
| Air Comm Corporation | Bleed Air Cabin Heater/Defroster System MDL DL-EC120H | Modification Part | Eurocopter France EC120B | 2004-05-19 | current |
| American Eurocopter LLC | Bleed Air Cabin Heater 105-E0009-1 | Modification Part | Eurocopter Deutschland BO-105S | 2003-08-10 | current |
| American Eurocopter LLC | Bleed Air Cabin Heater 105-E0009-1 | Modification Part | Eurocopter Deutschland BO-105S | 2003-08-10 | current |
| American Eurocopter LLC | Bleed Air Cabin Heater 105-E0009-2 | Modification Part | Eurocopter Deutschland BO-105S | 2003-08-10 | current |
| American Eurocopter LLC | Bleed Air Cabin Heater 105-E0009-2 | Modification Part | Eurocopter Deutschland BO-105S | 2003-08-10 | current |
| Rosemount Aerospace INC | Bleed Air Flow System Conditioner, 4 Channel 510EH2 | Boeing 60B40153-3 | Boeing 747-300, 747-400 | 2002-10-15 | current |
| Parker Hannifin CORP | Bleed Air Isolation Valve 2780539-105 | 2780539-105 | Boeing 767-300 Series, 767-400ER Series | 2002-07-08 | current |
| Dukes INC | Bleed Air Valve, Regulated 1818-00-1A | 1818-00-1A | Dassault Aviation Mystere-Falcon 20-C5, Mystere-Falcon... | 2000-09-18 | current |
| Honeywell International INC | Bleed Air Valve 04P23-7 | 51G802-001 | Pratt & Whitney PW4052, PW4056, PW4060 | 2000-08-30 | current |
| Honeywell International INC | Bleed Air Valve 04P23-12 | 52G515 | Pratt & Whitney PW4052, PW4056, PW4060 | 2000-08-30 | current |
| Honeywell International INC | Bleed Air Valve 04P23-5 | 51G802 | Pratt & Whitney PW4050, PW4052, PW4056 | 2000-08-30 | current |
| Honeywell International INC | Bleed Air Valve 04P23-9 | 51G802-002 | Pratt & Whitney PW4052, PW4056, PW4060 | 2000-08-30 | current |
| Honeywell International INC | Bleed Air Valve 04P23-6 | 51G804 | Pratt & Whitney PW4050, PW4052, PW4056 | 2000-08-30 | current |
| Honeywell International INC | Bleed Air Valve 04P23-8 | 52G226 | Pratt & Whitney PW4052, PW4056, PW4060 | 2000-08-30 | current |
| Parker Hannifin CORP | Bleed Air Manifold Isolation Valve, 6 Inch 2780539-104 | 2780539-104 | Raytheon 767-200 Series, 767-300 Series,... | 2000-02-06 | current |
| Arrowhead Products | Bleed Air Duct Assembly 13861-101 | 13861-101 | Bombardier, Inc. CL600-2B19 (Regional Jet) | 1999-09-01 | current |
| Itt Aerospace Controls | Bleed Air Control 1103P0833-02 | Dee Howard Co. 1103P0833-02 | Boeing 727-21C, 22C, 23 | 1998-10-06 | current |
| Itt Aerospace Controls | Bleed Air Control 1103P0810-01 | Dee Howard Co. 1103P0810-01 | Boeing 727-21C, 22C, 23 | 1998-10-06 | current |
| Honeywell International INC | Bleed Air Check vlave 3202222-1 | Boeing 10-62008-1 | Boeing 737-300, -400, -500 | 1997-12-16 | current |
| Rosemount Aerospace INC | Bleed Air Temperature Sensor 0132ADK | Dornier 0132ADK | Dornier-Werke 328-100 | 1997-10-23 | current |
| Heritage Aviation LTD | Bleed Air Heater and Air Conditioner B64-13020 | Bell 412, 412EP | 1997-05-22 | current | |
| Honeywell International US LLC | Bleed Air Precooler 189120-3 | Airbus Industrie 189120-3 | Airbus A300B2-IC, A300B4-2C, A300B2K-3C | 1997-02-17 | current |
| Soloy LLC | Bleed Air Installation MDL NO. 763-400 | Modification Part | Cessna U206G & TU206g | 1996-04-22 | current |
| Tradewind Turbines CORP | Bleed-Air Instrument Air System 771-1033 | Modification Part | Beech Raytheon) (A 36 and A36TC | 1995-09-06 | current |
| Honeywell International INC | Bleed Air Check Valve 3202072-3-1 | Bombardier 3202072-3-1 | Bombardier, Inc. CL600-2B19 (Regional Jet Series 100) | 1995-08-29 | current |
| Valcor Engineering CORP | Bleed Air S/O Valve V44700-141 | SAAB 9303032-002 | Saab Aircraft AB 340 (A52EU) | 1995-06-19 | current |
| Valcor Engineering CORP | Bleed Air S/O Valve V44700-222 | SAAB 9303032-003 | Saab Aircraft AB 2000 | 1995-04-03 | current |
| Valcor Engineering CORP | Bleed Air S/O Valve V5000-229 | SAAB 9303814-001 | Saab Aircraft AB 2000 | 1995-04-03 | current |
| Honeywell International INC | Bleed Air Check Valve 3202362-1-1 | Gulfstream Aerospace 3202362-1-1 | Gulfstream GS-4 | 1995-02-05 | current |
| Flexfab INC | Bleed Air Seal FTW 2155-1 | Lockheed 741158-103 | Lockheed L-1011 | 1994-07-24 | current |
| Flexfab INC | Bleed Air Seal FTW 1982-103 | Lockheed 741145-103 | Lockheed L-1011 | 1994-07-24 | current |
| Flexfab INC | Bleed Air Seal FTW 1983-101 | Lockheed 741158-101 | Lockheed L-1011 | 1994-07-24 | current |
| Airforce Turbine Service | Bleed Air Case Assembly ATS004 | 3029769 | Pratt & Whitney Canada PT6A-11, -11AG, -15AG | 1994-03-31 | current |
| Air Comm Corporation | Bleed Air Cabin Heating System Dwg DL-222H | Modification Part | Bell 222, 222U, 222 | 1993-09-07 | current |
| Honeywell International INC | Bleed-Air Flow Control 106522-1 | General Dynamics 22-02464-1 | General Dynamics 22/22M, 30/30A | 1993-08-05 | current |
| Airforce Turbine Service | Bleed Air Ring-Support ATS006 | Pratt & Whitney Canada (P&WC), 3027191,... | Pratt & Whitney Canada PT6A-11, -11AG, -15AG | 1992-12-31 | current |
| Parker Hannifin CORP | Bleed Air Isol Valve 2780539-101 | Boeing 2780539-101 | Boeing 767 | 1992-08-26 | current |
| Rosemount Aerospace INC | Bleed Air Flow System Conditioner, 4 Channel 510EH2 | Boeing 60B40149-2 | Boeing 747-300, -400 | 1992-02-02 | current |
| Honeywell International INC | Bleed Air Valve 898772-1 | G.E. 9118M97P02 | General Electric CF6-6, -50 Series | 1989-09-21 | current |
| Devore Aviation CORP of America | Bleed Air Ducting Replacement DAS 1000 | - | DeHavilland DHC6-100, -200 and -300 Series | 1980-01-15 | current |
| Woodward Mpc | Bleed-Air Valve Actuator G66 | - | Boeing 727 Aircraft (All Series) | 1976-11-29 | current |
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.