Regulator
227 failure reports named the regulator in the last ten years, 984 since 1995, most often on the Boeing 737; the condition most often found was "failed". 199 FAA approvals let 25 companies make a replacement regulator, Honeywell International INC. holding the most (44). The reports call it "regulator", "o2 regulator".
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1995 | 58 |
| 1996 | 47 |
| 1997 | 49 |
| 1998 | 76 |
| 1999 | 57 |
| 2000 | 68 |
| 2001 | 50 |
| 2002 | 24 |
| 2003 | 25 |
| 2004 | 17 |
| 2005 | 25 |
| 2006 | 23 |
| 2007 | 17 |
| 2008 | 28 |
| 2009 | 20 |
| 2010 | 38 |
| 2011 | 40 |
| 2012 | 31 |
| 2013 | 29 |
| 2014 | 20 |
| 2015 | 15 |
| 2016 | 26 |
| 2017 | 22 |
| 2018 | 34 |
| 2019 | 30 |
| 2020 | 19 |
| 2021 | 17 |
| 2022 | 15 |
| 2023 | 28 |
| 2024 | 9 |
| 2025 | 18 |
| 2026 | 9 |
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
failed78faulty28faulted24inoperative23leaking21malfunctioned12damaged7defective5intermittent4abnormal2
Conditions found, as a table
| reports | |
|---|---|
| failed | 78 |
| faulty | 28 |
| faulted | 24 |
| inoperative | 23 |
| leaking | 21 |
| malfunctioned | 12 |
| damaged | 7 |
| defective | 5 |
| intermittent | 4 |
| abnormal | 2 |
Engines most often reporting it
CFM International CFM56-7B26/2 5CFM International CFM56-7B27 5CFM International CFM56-7B27E 3CFM International CFM56 series 2Pratt & Whitney PT6A series 2Pratt & Whitney PW2037 2CFM International CFM56-3C1 1CFM International CFM56-5B4/P 1CFM International CFM56-7B20 1CFM International CFM56-7B27/B1 1
Approved replacement parts 199 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a regulator and sell it as an approved part for the models named. These are the companies holding such approvals for a regulator:
Honeywell International INC. 44Lamar Technologies LLC 30Honeywell International INC 22Carleton Technologies INC 17Goodrich Corporation 9Honeywell International US LLC 7Pacific Scientific, Htl/Kin-Tech Div 6Meggitt Safety Systems INC 6B/E Aerospace INC, Lenexa Facility 6Hartzell Engine Technologies LLC 5Eaton Aerospace Sterer Engineering 5Rapco INC 4Kaiser Marquardt 4C & D Associates INC 4C & D Associates 4Avox Systems INC (Formerly Scott Aviation) 4Scott Aviation (Now Avox Systems, INC.) 3Scott Aviation 3General Dynamics 3Ge Aviation LLC (Formerly Smiths Aerospace) 3Pacific Scientific, Htl/Kin-Tech Division 2Ontic Engineering & Manufacturing INC 2Honeywell International INC, Controls and Accessories 2Airesearch Tucson Div 2Aerocontrolex Group, Transdigm INC 2
For these models most: Gulfstream G-1159 Gulfstream II and III (21), Boeing 737 (19), Boeing 707 (16), Boeing 727 (10), Piper PA-34 Seneca (9), Piper PA-44 Seminole (8), Piper PA-23 Apache and Aztec (8), Mcdonnell Douglas DC-10 (8), Cessna 421 Golden Eagle (8), Cessna 310 (8), Piper PA-39 Twin Comanche C/R (7), Piper PA-30 Twin Comanche (7).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Honeywell International INC. | Regulator 108136-1 | 108136-1 | Lockheed Martin Corporation 382 | 2023-05-02 | current |
| Honeywell International INC. | Regulator 130594-1 | 130594-1 | Piaggio P-180 | 2023-04-20 | current |
| Honeywell International INC. | Regulator 3214324-2 | 3214324-2 | The Boeing Company DC-8-71, DC-8-71F, DC-8-72 | 2023-02-24 | current |
| Honeywell International INC. | Regulator 107464-3 | 107464-3 | The Boeing Company DC-8-71, DC-8-71F, DC-8-72 | 2023-02-24 | current |
| Honeywell International INC. | Regulator S/O Valve 3214306-9 | S212N101-53 | The Boeing Company 757-200 Series, 757-200PF Series,... | 2023-02-20 | current |
| Honeywell International INC. | Regulator 392454-3-1 | 392454-3-1 | The Boeing Company DC-9-33F | 2023-02-14 | current |
| Honeywell International INC. | Regulator 3214176-1-1 | 3214176-1-1 | The Boeing Company DC-9-81 (MD-81) | 2023-02-14 | current |
| Honeywell International INC. | Regulator, High Stage 107484-7 | 10-62008-42 | The Boeing Company 737-600 Series, 737-700 Series,... | 2023-02-08 | current |
| Honeywell International INC. | Regulator 108032-8 | 108032-8 | The Boeing Company 727-200 Series, 737-100 Series,... | 2023-02-03 | current |
| Honeywell International INC. | Regulator 107484-5 | 10-62008-31 | The Boeing Company 737-500 Series | 2023-02-03 | current |
| Honeywell International INC. | Regulator 107484-5 | 10-62008-31 | The Boeing Company 737-300 Series | 2023-02-03 | current |
| Honeywell International INC. | Regulator 108032-3 | 108032-3 | The Boeing Company 727-200 Series, 737-100 Series,... | 2023-02-03 | current |
| Honeywell International INC. | Regulator 107484-5 | 10-62008-31 | The Boeing Company 737-400 Series | 2023-02-03 | current |
| Honeywell International INC. | Regulator, Fifth Stage 107492-5 | 10-62008-40 | The Boeing Company 737-800 Series | 2023-02-02 | current |
| Honeywell International INC. | Regulator 392704-3-1 | 392704-3-1 | The Boeing Company 727-200 Series | 2023-01-31 | current |
| Honeywell International INC. | Regulator 392704-3-2 | 392704-3-2 | The Boeing Company 727-200 Series | 2023-01-31 | current |
| Honeywell International INC. | Regulator 898126-2-1 | None Listed | The Boeing Company 727 Series, 727-100 Series, 727C Series | 2023-01-31 | current |
| Honeywell International INC. | Regulator, 5th Stage 107492-6 | 10-62008-41 | The Boeing Company 737-600 Series, 737-700 Series,... | 2023-01-31 | current |
| Honeywell International INC. | Regulator 107492-1 | 10-62008-10 | The Boeing Company 737-300 Series | 2023-01-31 | current |
| Honeywell International INC. | Regulator, Fifth Stage 107492-5 | 10-62008-40 | The Boeing Company 737-700 Series | 2023-01-31 | current |
| Honeywell International INC. | Regulator 392686-3-1 | None Listed | The Boeing Company 737-100 Series, 737-200 Series,... | 2023-01-24 | current |
| Honeywell International INC. | Regulator 108032-9-1 | 108032-9-1 | Boeing 707-300 Series, 727-200 Series | 2023-01-09 | current |
| Honeywell International INC. | Regulator 392212-1 | 10-3369-1 | Boeing 707-100 Long Body, 707-200, 707-100B... | 2023-01-09 | current |
| Honeywell International INC. | Regulator 108736-760 | 10-3079-2 | Boeing 707-300 Series | 2023-01-09 | current |
| Honeywell International INC. | Regulator 898304-1 | 10-3079-22 | Boeing 707-300 Series | 2023-01-09 | current |
| Honeywell International INC. | Regulator, Absolute Air Pressure 102466-14 | 102466-14 | Aero Vodochody Aerospace Ae 270 | 2022-12-20 | current |
| Honeywell International INC. | Regulator, Pressure Differential - Shutoff 392734-1-3 (Series 6) | 392734-1-3 | Gulfstream G-1159A | 2022-10-19 | current |
| Honeywell International INC. | Regulator, Pressure Differential - Shutoff 392734-1-3 (Series 4) | 392734-1-3 | Gulfstream G-1159A | 2022-10-19 | current |
| Honeywell International INC. | Regulator, Pressure Differential - Shutoff 392734-1-5 (Series 7) | 392734-1-5 | Gulfstream G-1159A | 2022-10-19 | current |
| Honeywell International INC. | Regulator, Pressure Differential - Shutoff 392724-5-1 (Series 2) | 392724-5-1 | Gulfstream G-1159A | 2022-10-19 | current |
| Honeywell International INC. | Regulator, Pressure Differential - Shutoff 392724-5-1 (Series 1) | 392724-5-1 | Gulfstream G-1159A | 2022-10-19 | current |
| Honeywell International INC. | Regulator, Pressure Differential - Shutoff 392734-1-3 | 392734-1-3 | Gulfstream G-1159A | 2022-10-19 | current |
| Honeywell International INC. | Regulator, Pressure Differential - Shutoff 392724-4-1 (Series 2) | 392724-4-1 | Gulfstream G-1159A | 2022-10-19 | current |
| Honeywell International INC. | Regulator, Pressure Differential - Shutoff 392724-1-7 (Series 8) | 392724-1-7 | Gulfstream G-1159A | 2022-10-19 | current |
| Honeywell International INC. | Regulator, Pressure Differential - Shutoff 392724-1-7 | 392724-1-7 | Gulfstream G-1159A | 2022-10-19 | current |
| Honeywell International INC. | Regulator, Pressure Differential - Shutoff 392724-1-7 (Series 9) | 392724-1-7 | Gulfstream G-1159A | 2022-10-19 | current |
| Honeywell International INC. | Regulator 102466-1 | 102466-1 | Textron Aviation Inc. 500, 550, 560 | 2022-08-22 | current |
| Honeywell International INC. | Regulator 102466-1 | 102466-1 | Textron 400A | 2022-08-19 | current |
| Honeywell International INC. | Regulator - Absolute Pressure 130440-3 | 130440-3 | Textron 441 | 2022-08-19 | current |
| Honeywell International INC. | Regulator 102466-12 | 102466-12 | Textron 550, 560 | 2022-08-17 | current |
| Honeywell International INC. | Regulator 102624-3-1 | 102624-3-1 | McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 | 2022-03-31 | current |
| Honeywell International INC. | Regulator 102624-4-1 | 102624-4-1 | McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 | 2022-03-31 | current |
| Honeywell International INC. | Regulator 102466-5 | 102466-5 | British Aerospace DH.125 Series 1, DH.125 Series... | 2022-03-31 | current |
| Honeywell International INC. | Regulator 102340-10 | 102340-10 | Fairchild SA26-T, SA26-AT, SA226-T | 2022-02-28 | current |
| Honeywell International INC. Honeywell Aerospace | Regulator 153730-3 | 10-60405-11 | Boeing 707-300 Series, 707-300B Series,... | 2021-04-21 | current |
| Goodrich Corporation | Regulator, Reliever 4D2095-141 | 9598901012 | Pilatus PC-12 SERIES | 2019-06-26 | current |
| Goodrich Corporation | Regulator, Pressure/ Reliever 4D2095-201 | 9598901019 | Pilatus PC-24 | 2019-06-26 | current |
| B/E Aerospace INC | Regulator Assembly, Altitude Compensating W/Surge 112052-01 | 112052-01 | Dornier 328-100, 328-300 | 2018-06-28 | current |
| Hartzell Engine Technologies LLC | Regulator Assembly CD29127 | 6630115-505, 6630115-515 | Twin Commander Aircraft LLC 500A, S/N's 871 thru 1130, 500B | 2016-04-28 | current |
| Hartzell Engine Technologies LLC | Regulator CD20801 | 3020, 3021 C291501-0101, C291501-0103 A14D11,... | Aerostar Aircraft Corporation PA-60-600, PA-60-601, PA-60-601P | 2016-04-28 | current |
| Hartzell Engine Technologies LLC | Regulator CD20803 | 3204, 3248, 9910305-4, C14D11, C23D04 | Textron Aviation Inc. Cessna) (340, 340A, 421C | 2016-04-28 | current |
| Hartzell Engine Technologies LLC | Regulator Assembly CD29124 | P309N, 756561 | Beechcraft Corporation 65-90, 65-A90, B90) Piper Aircraft | 2016-04-28 | current |
| Hartzell Engine Technologies LLC | Regulator CD20800 | 3169, 3236, 3242, 3243 14D11, 23D04 753122, 492-228 | Beechcraft Corporation 76) Piper Aircraft, Inc. (PA-23, S/N... | 2016-04-28 | current |
| C & D Associates INC | Regulator CD20801 | Piper 461-731, 492-228 | Piper PA-44-180, S/N 4496331, 4496339 and... | 2015-11-11 | current |
| C & D Associates INC | Regulator, Shutoff Assembly CD22058 | Cessna P/Ns, AN822-4D, 0850451-2, 0851566-2,... | Cessna 310R | 2015-11-11 | current |
| C & D Associates INC | Regulator CD20803 | C&D Airmotive 3204, 3248, Cessna 9910305-4,... | Cessna 421C (S/Ns 201 and up) | 2015-05-17 | current |
| C & D Associates INC | Regulator CD20801 | C&D Airmotive 3021, Janitrol A23D04, Piper... | Piper PA-34-220T | 2015-05-17 | current |
| Circor Aerospace, INC. | Regulator/ Solenoid 2990-9539 | 2990-9539 | McDonnell Douglas DC-10 | 2015-05-03 | current |
| Meggitt Safety Systems INC | Regulator R73-2008-42-1A | 697199-1 | Lockheed L-382 | 2015-02-18 | current |
| Meggitt Safety Systems INC | Regulator Assy R73-2004-42-3A | 695606-7 | Lockheed L-382 | 2015-02-18 | current |
| Meggitt Safety Systems INC | Regulator, Tension Elevator 0501148-13 | 0501148-13 | Fokker F28Mark 1000, 2000, 3000 | 2015-02-18 | current |
| Meggitt Safety Systems INC | Regulator, Tension Aileron 0501147-09 | 0501147-09 | Fokker F28Mark 1000, 2000, 3000 | 2015-02-18 | current |
| Meggitt Safety Systems INC | Regulator 36500019-3 | 36500019-3 | Boeing 747-200 | 2015-01-05 | current |
| Meggitt Safety Systems INC | Regulator 44001400-1 | 44001400-1 | Rinaldo Piaggio P.180 | 2015-01-04 | current |
| Ontic Engineering & Manufacturing INC | Regulator Assembly, Fuel Flow, Auxiliary 977808-5 | 977808-5 | Honeywell 700-4B (DC-10, MD-10), 700-5 (A300) | 2013-11-14 | current |
| Ontic Engineering & Manufacturing INC | Regulator Assembly, Pressure, Differential 977254-8 | 977254-8 | Honeywell 700-4B (DC-10, MD-10), 700-5 (A300) | 2013-11-14 | current |
| Aero Fluid Products | Regulator, Air Pressure. Hydraulic Oil Reservoir 118600-1 | Columbia Helicopters 114HS136-1 | Columbia Helicopters Model 234 | 2013-07-23 | current |
| Aero Fluid Products | Regulator, Air Pressure 105800-3 | JH1004-1 | Lockheed 1329-23A, 1329-23D, 1329-23E | 2013-07-23 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00301-1 | SIAI Marchetti S.210) Aermacchi S.p.A. (S.205-18/F,... | 2012-10-28 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00306-3 | B-00306-3, 584-042 | Aerostar PA-60-600(600), PA-60-601(601),... | 2012-10-28 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00296-3 | Cessna 310, 310A(USAF U-3A), 310B | 2012-10-28 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00306-3 | B-00306-2, 9504327 | Hawker Beechcraft D55, D55A, E55 | 2012-10-28 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00286-1, 550-390 | Piper Aircraft, Inc. PA-23, PA-23-160, PA-23-235 | 2012-10-28 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00343-1 | Vulcanair S.p.A. P68, P68B, P68C | 2012-10-28 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 14V B-00288-1 | B-00288-11 | True Flight Holdings LLC AA-1, AA-1A, AA-1B | 2012-10-28 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00307-1, 1816100 | Twin Commander 500, 500-A, 500-B | 2012-10-28 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 14V B-00288-1 | B-00294-1, 9504326 | Hawker Beechcraft E33, E33A, E33C | 2012-10-28 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00296-1 | Cessna 310, 310A(USAF U-3A), 310B | 2012-10-28 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00296-2 | Cessna 310, 310A(USAF U-3A), 310B | 2012-10-28 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 14V B-00288-1 | B-00288-1, 550-393 | Piper Aircraft, Inc. PA-23, PA-23-160, PA-23-235 | 2012-10-28 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00306-3 | B-00306-1 | Hawker Beechcraft D55, D55A, E55 | 2012-10-28 | current |
| Avox Systems INC (Formerly Scott Aviation) | Regulator, Mask & Cylinder Assembly 900019-01 | Piaggio P/N 900019-01 | Piaggio P.180 Avanti, P.180 Avanti II | 2011-10-31 | current |
| Aerocontrolex Group, Transdigm INC | Regulator, Air Pressure, Hydraulic Oil Reservoir 118600-1 | Columbia Helicopters 114HS136-1 | Columbia Helicopters Model 234 | 2011-06-29 | current |
| B/E Aerospace INC, Lenexa Facility | Regulator W/Surge, Altitude Compensating 4421135-000 | 4421135-000 | Embraer EMB-500, EMB-505 | 2011-04-27 | current |
| B/E Aerospace INC, Lenexa Facility | Regulator W/Surge, Altitude Compensating 4421135-001 | 4421135-001 | Embraer EMB-505 | 2011-04-07 | current |
| B/E Aerospace INC, Lenexa Facility | Regulator W/Surge, Altitude Compensating 4421135-001 | 4421135-001 | Embraer EMB-500 | 2011-04-07 | current |
| Goodrich Corporation | Regulator, Air Pressure 3E3292-1 | Bombardier P/N 3E3292-1 | Bombardier TC No. A21EA CL-600-2D24 Regional Jet, Series 900 | 2011-02-01 | current |
| Goodrich Corporation | Regulator, Air Pressure 3E3292-1 | Bombardier P/N 3E3292-1 | Bombardier TC No. A21EA CL-600-2C10 Regional Jet, Series 700 | 2011-02-01 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00301-1 | SIAI Marchetti S.210, S.205-18/F, S.205-18/R | 2010-12-14 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 14V B-00288-1 | B-00288-1, 550-393 | Piper Aircraft, Inc. PA-23, PA-23-160, PA-23-235 | 2010-12-14 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00343-1 | Vulcanair S.p.A. P68, P68B, P68C | 2010-12-14 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00307-1, 1816100 | Twin Commander 500, 500-A, 500-B | 2010-12-14 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 14V B-00288-1 | B-00294-1, 9504326 | Hawker Beechcraft E33, E33A, E33C | 2010-12-14 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00306-3 | B-00306-2, 9504327 | Hawker Beechcraft D55, D55A, E55 | 2010-12-14 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00296-1 | Cessna 310, 310A(USAF U-3A), 310B | 2010-12-14 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00306-3 | B-00306-1 | Hawker Beechcraft D55, D55A, E55 | 2010-12-14 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00286-1, 550-390 | Piper Aircraft, Inc. PA-23, PA-23-160, PA-23-235 | 2010-12-14 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00296-3 | Cessna 310, 310A(USAF U-3A), 310B | 2010-12-14 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 14V B-00288-1 | B-00288-11 | True Flight Holdings LLC AA-1, AA-1A, AA-1B | 2010-12-14 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00286-1 | B-00296-2 | Cessna 310, 310A(USAF U-3A), 310B | 2010-12-14 | current |
| Lamar Technologies LLC | Regulator, Parallel Operation, 28V B-00306-3 | B-00306-3, 584-042 | Aerostar PA-60-600(600), PA-60-601(601),... | 2010-12-14 | current |
| Aerocontrolex Group, Transdigm INC | Regulator, Air Pressure 105800-3 | JH1004-1 | Lockheed 1329-23A, 1329-23D, 1329-23E | 2010-03-21 | current |
| B/E Aerospace INC, Lenexa Facility | Regulator - Oxygen (ROX) B43226-5 | B43226-5 | Airbus A380-841, -842 | 2009-09-29 | current |
| B/E Aerospace INC, Lenexa Facility | Regulator - Oxygen B43350-1 | B43350-1 | Airbus A330-201, -202, -203 | 2009-09-15 | current |
| Ge Aviation LLC (Formerly Smiths Aerospace) | Regulator 3U3141-2 | 3U3414-2 | McDonnell Douglas MD-11, MD-11F | 2007-11-07 | current |
| Ge Aviation LLC (Formerly Smiths Aerospace) | Regulator 3U3141 () Series | AJG7041 | McDonnell Douglas DC-10 Series DC-10 10, DC-10 30, DC-10 40 | 2007-11-07 | current |
| Honeywell International INC | Regulator, High Stage 107484-7 | 10-62008-42 | Boeing 737-600 Series, 737-700 Series,... | 2007-05-17 | current |
| Carleton Technologies INC | Regulator - Oxygen (ROX) B43226-5 | B43226-5 | Airbus A380-841 A380-842 | 2007-05-09 | current |
| C & D Associates | Regulator Assembly CD29127 | Twin Commander P/N's: 6630115-505 6630115-515 | Twin Commander 500-A, S/N's 871 thru 1130, 500-B | 2007-03-29 | current |
| Honeywell International US LLC | Regulator, 5th Stage 107492-6 | 10-62008-41 | Boeing 737-600 Series, 737-700 Series,... | 2006-09-05 | current |
| Honeywell International US LLC | Regulator, Absolute Air Pressure 102466-14 | 102466-14 | Aero Vodochody Ae 270 | 2006-04-25 | current |
| Rapco INC | Regulator Assembly RA2H3-12 | 2H3-12, 2H3-16, 133A16 | Alexandria Aircraft LLC 17-30A, 17-31A, 17-31ATC | 2005-05-11 | current |
| Rapco INC | Regulator Assembly RA2H3-23 | 2H3-23, 133A4 | Piper PA-18, PA-18 "150, PA-24 | 2005-05-11 | current |
| Rapco INC | Regulator Assembly RA2H3-23 | 2H3-23, 133A4 | Piper PA-18, PA-18 "150, PA-24 | 2005-05-10 | current |
| Rapco INC | Regulator Assembly RA2H3-12 | 2H3-12, 2H3-16, 133A16 | Alexandria Aircraft LLC 17-30A, 17-31A, 17-31ATC | 2005-05-10 | current |
| South Bend Controls INC | Regulator, Door Seal 20026299 | Israel Aircraft Industries (IAI) V25W786010-003 | Gulfstream 100, Galaxy, 200 | 2005-03-15 | current |
| Hr Textron INC | Regulator, Air Pressure 105800-3 | JH1004-1 | Lockheed 1329-23A, 1329-23D, 1329-23E | 2004-02-18 | current |
| Carleton Technologies INC | Regulator - Oxygen B43350-1 | B43350-1 | Airbus A340-541, A340-642 | 2004-02-12 | current |
| Goodrich Corporation | Regulator, Air Pressure 3E3292-1 | Bombardier/ Goodrich 3E3292-1 | Bombardier, Inc. CL-600-2D24 Regional Jet, Series 900 | 2003-11-27 | current |
| Goodrich Corporation | Regulator, Air Pressure 3E3292-1 | Bombardier/ Goodrich 3E3292-1 | Bombardier, Inc. CL-600-2C10 Regional Jet, Series 700 | 2003-11-27 | current |
| Honeywell International INC | Regulator - Bleed System Augmentation 30E70-2 | Piper 492-182 | Piper PA-42-720 | 2003-05-13 | current |
| Honeywell International INC | Regulator - Bleed System Augmentation 30E70-1 | Piper 492-182 | Piper PA-42-720 | 2003-05-13 | current |
| Honeywell International INC | Regulator 66D44 | Fairchild Aviation 66D44 | Fairchild Aircraft SA226-AT, SA226-TC, SA227-AC | 2001-10-29 | current |
| Goodrich Corporation | Regulator/ Reliever 4D2095-141 | Pilatus P/N 959.89.01.012 | Pilatus TC No. A78EU PC-12, PC-12/45 | 2001-10-25 | current |
| Goodrich Corporation | Regulator, Air Pressure 3E3292-1 | Bombardier/ Goodrich 3E3292-1 | Bombardier, Inc. CL-600-2C10 Regional Jet, Series 700 | 2001-08-01 | current |
| General Dynamics | Regulator Assembly 226358 | BAN7006-501 | McDonnell Douglas DC-10-10, DC-10-10F, DC-10-15 | 2001-07-19 | current |
| General Dynamics | Regulator Assembly 226358-503 | BAN7006-507 | McDonnell Douglas MD-11, MD-11F series | 2001-07-19 | current |
| General Dynamics | Regulator Assembly 226358-505 | BAN7006-509 | McDonnell Douglas DC-10-10, DC-10-10F, DC-10-15 | 2001-07-19 | current |
| Honeywell International US LLC | REGULATOR, CABIN TEMP. 961-7000-001 | 10-03063-20 | Boeing 707, 720 | 2001-06-24 | current |
| C & D Associates | Regulator CD20803 | C&D Airmotive 3204, 3248, Cessna 9910305-4,... | Cessna 340, 340A | 2001-06-14 | current |
| C & D Associates | Regulator CD20801 | C&D Airmotive 3020, 3021, Cessna C291501-0101,... | Aerostar Aircraft PA-60-600, PA-60-601, PA-60-601P | 2001-06-14 | current |
| C & D Associates | Regulator CD20800 | C&D Airmotive 3169, 3236, 3242, 3243, Janitrol... | Piper PA-23, S/N 27-3050 and up, PA-30 | 2001-06-14 | current |
| Gulfstream Aerospace LP | Regulator Assembly 25W751020-501 | IAI V25W751020-501 | Israel 1125 Westwind Astra, Astra SPX | 2001-06-06 | current |
| Galaxy Aerospace CO LP | Regulator Assembly 25W751020-501 | IAI V25W751020-501 | Israel 1125 Westwind Astra, Astra SPX | 2001-05-08 | current |
| Carleton Technologies INC | Regulator 1552-002-9 | 1552-002-9 | Boeing 707-300C, 737-100, 737-200C | 2001-02-07 | current |
| Carleton Technologies INC | Regulator 1552-002-7 | 1552-002-7 | Boeing 707-300B, 707-300C | 2001-02-07 | current |
| Carleton Technologies INC | Regulator 1-6-05-20 | 10-60230-2 | Boeing 747-100B, 747-100B SUD, 747-200B | 2001-02-07 | current |
| Carleton Technologies INC | Regulator 1552-002-23 | 1552-002-23 | Boeing 757-200CB, 757-300 | 2001-02-07 | current |
| Carleton Technologies INC | Regulator 1552-002-19 | 1552-002-19 | Boeing 737-400, 737-500, 737-600 | 2001-02-07 | current |
| Carleton Technologies INC | Regulator 1552-002-3 | 1552-002-3 | Boeing 707-300C | 2001-02-07 | current |
| Eaton Aerospace Sterer Engineering | Regulator, Double Acting, Hyd. Flow 21730 | 697270-1 | Lockheed 382, 382B, 382E | 2000-11-07 | current |
| Eaton Aerospace Sterer Engineering | Regulator, Reservoir Pressure 23200 | 3713015 | Israel MODEL 1121, 1121A, 1121B | 2000-11-07 | current |
| Eaton Aerospace Sterer Engineering | Regulator, Double Acting, Hyd. Flow 34470 | 697270-3 | Lockheed 382, 382B, 382E | 2000-11-07 | current |
| Eaton Aerospace Sterer Engineering | Regulator 71367 | 71367 | Fokker F28 MARK 0100 | 2000-11-07 | current |
| Eaton Aerospace Sterer Engineering | Regulator, Hyd. Flow 9900-39 | 697283-1 | Lockheed 382, 382B, 382E | 2000-11-07 | current |
| Pacific Scientific, Htl/Kin-Tech Div | Regulator Assembly R73-2004-42-3A | 695606-7 | Lockheed L-382 | 2000-03-28 | current |
| Pacific Scientific, Htl/Kin-Tech Div | Regulator R73-2008-42-1A | 697199-1 | Lockheed L-382 | 2000-03-28 | current |
| Pacific Scientific, Htl/Kin-Tech Div | Regulator, Tension Aileron 0501147-09 | 0501147-09 | Fokker F28Mark 1000, 2000, 3000 | 2000-03-18 | current |
| Pacific Scientific, Htl/Kin-Tech Div | Regulator, Tension Elevator 0501148-13 | 0501148-13 | Fokker F28Mark 1000, 2000, 3000 | 2000-03-18 | current |
| B/E Aerospace INC, Lenexa Facility | Regulator Assembly 112054-01 | ATR 112054-01 | Aerospatiale ATR42-400, ATR42-500, ATR72-102 | 1999-11-02 | current |
The first 150 of 209.
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.