Orifice
9 failure reports named the orifice in the last ten years, 14 since 2009, most often on the Boeing 767; the condition most often found was "obstructed". 189 FAA approvals let 25 companies make a replacement orifice, Timken Alcor Aerospace Technologies INC holding the most (39).
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 2009 | 1 |
| 2011 | 2 |
| 2013 | 2 |
| 2019 | 3 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 4 |
Which system the reports file it under last ten years
Cabin, seats and restraints2Emergency equipment2Engine1Landing gear1Propeller1Airframe structure1Heating, ice protection and utility systems1
Reports by system, as a table
| reports | |
|---|---|
| Cabin, seats and restraints | 2 |
| Emergency equipment | 2 |
| Engine | 1 |
| Landing gear | 1 |
| Propeller | 1 |
| Airframe structure | 1 |
| Heating, ice protection and utility systems | 1 |
Models most often reporting it last ten years
Boeing 7673Airbus A3191Airbus A3211Boeing 7571Bombardier DHC-8 Dash 8 and Q4001Gulfstream Am Corp Comm Div 6901
Models most reported, as a table
| reports | |
|---|---|
| Boeing 767 | 3 |
| Airbus A319 | 1 |
| Airbus A321 | 1 |
| Boeing 757 | 1 |
| Bombardier DHC-8 Dash 8 and Q400 | 1 |
| Gulfstream Am Corp Comm Div 690 | 1 |
How it failed the condition found, last ten years
obstructed2blocked1clogged1failed1fod1loose1sheared1unknown1
Conditions found, as a table
| reports | |
|---|---|
| obstructed | 2 |
| blocked | 1 |
| clogged | 1 |
| failed | 1 |
| fod | 1 |
| loose | 1 |
| sheared | 1 |
| unknown | 1 |
Engines most often reporting it
Approved replacement parts 189 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a orifice and sell it as an approved part for the models named. These are the companies holding such approvals for a orifice:
Timken Alcor Aerospace Technologies INC 39Parker Hannifin CORP 31Gulfstream Aerospace Corporation 17Gulfstream Aerospace LP 14Galaxy Aerospace CO LP 14Panasonic Avionics Corporation 11United Technologies, Hamilton Sundstrand 9Northwest Aerospace Technologies 8Wencor LLC 5Northwest Aerospace Technologies, INC. 5Northwest Aerospace Technologies INC 5Hemico INC. 5L2 Aviation 4Aviation Component Solutions 4Wencor LLC (Formerly Dixie Aerospace LLC) 2Jet Parts Engineering INC 2Hye-Tech Manufacturing LLC 2Hye-Tech Manufacturing LLC 2Greenpoint Technologies INC 2Goodrich Landing Gear 2Gemini Engineering 2Wencor West INC 1Volant 1Swisturbine INC 1Rotair Industries INC 1
For these models most: Israel Aircraft Industries ASTRA SPX (28), Israel Aircraft Industries 1125 (28), Boeing 747 (27), Boeing 767 (26), Boeing 757 (11), Boeing 787 Dreamliner (9), Boeing 737 (7), Boeing 777 (6), Israel Aircraft Industries GALAXY (5), Airbus BD-500 (4), Saab-Fairchild 340 (2), Douglas DC-8 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Hemico INC. | Orifice HEM50-810331-3 | 50-810331-3 | Textron Aviation Inc. 200, 200T, 200C | 2024-10-18 | current |
| Hemico INC. | Orifice HEM50-810331-9 | 50-810331-9 | Textron Aviation Inc. 200, 200T, 200C | 2024-10-18 | current |
| Hemico INC. | Orifice HEM50-810331-7 | 50-810331-7 | Textron Aviation Inc. 1900, 1900C, 1900D | 2024-10-17 | current |
| Hemico INC. | Orifice HEM114-820051-1 | 114-820051-1 | Textron Aviation Inc. 1900, 1900C, 1900D | 2024-10-17 | current |
| Hemico INC. | Orifice HEM50-810331-1 | 50-810331-1 | Textron Aviation Inc. 99, C99, 100 | 2024-10-17 | current |
| L2 Aviation | Orifice, Plate, 1.5 OD, 1.120 ID 2100L2PY-001-1120 | 2100L2PY-001-1120 | Boeing 767-200 Series767-300 Series767-300F Series | 2021-10-09 | current |
| L2 Aviation | Orifice, Plate, 1.5 OD, 0.900 ID 2100L2PY-001-0900 | 2100L2PY-001-0900 | Boeing 767-200 Series767-300 Series767-300F Series | 2021-10-09 | current |
| L2 Aviation | Orifice, 1.25 OD, 0.500 ID 2100L2PY-002-0500 | 2100L2PY-002-0500 | Boeing 767-200 Series767-300 Series767-300F Series | 2021-10-09 | current |
| L2 Aviation | Orifice, 1.5 OD, 0.850 ID 2100L2PY-001-0850 | 2100L2PY-001-0850 | Boeing 767-200 Series767-300 Series767-300F Series | 2021-10-09 | current |
| Parker Hannifin CORP | Orifice, Low Flow 2050077-101 | 2050077-101 | Boeing 747-8 Series | 2020-10-27 | current |
| Parker Hannifin CORP | Orifice, High Flow 2050078-101 | 2050078-101 | Boeing 747-8 Series | 2020-10-27 | current |
| Hye-Tech Manufacturing LLC | Orifice, Diffuser Vent 6874924HT | 6874924 | Rolls-Royce 250-C10B (T63-A-5A), C10D (T63-A-700), C18 | 2019-04-30 | current |
| Northwest Aerospace Technologies, INC. | ORIFICE ASSY 3NS003-0250B0080 | 3NS003-0250B0080 | Boeing 767-300 Series | 2018-11-11 | current |
| Northwest Aerospace Technologies, INC. | ORIFICE ASSY 3NS003-0200B0140 | 3NS003-0200B0140 | Boeing 767-300 Series | 2018-11-11 | current |
| Northwest Aerospace Technologies, INC. | ORIFICE ASSY 3NS003-0250B0220 | 3NS003-0250B0220 | Boeing 767-300 Series | 2018-11-11 | current |
| Northwest Aerospace Technologies, INC. | ORIFICE ASSY 3NS003-0225B0085 | 3NS003-0225B0085 | Boeing 767-300 Series | 2018-11-11 | current |
| Northwest Aerospace Technologies, INC. | ORIFICE ASSY 3NS003-0250B0177 | 3NS003-0250B0177 | Boeing 767-300 Series | 2018-11-11 | current |
| Parker Hannifin CORP | Orifice - Minimum Flow 975380-1 | 975380-1 | Airbus A350-1041 | 2018-02-07 | current |
| United Technologies, Hamilton Sundstrand | Orifice, Right Main Tank 7012077H01 | 7012077H01 | The Boeing Company 787-10 | 2018-01-30 | current |
| United Technologies, Hamilton Sundstrand | Orifice, Left Main Tank 7012076H01 | 7012076H01 | The Boeing Company 787-10 | 2018-01-30 | current |
| United Technologies, Hamilton Sundstrand | Orifice, Center Tank 7012078H01 | 7012078H01 | The Boeing Company 787-10 | 2018-01-30 | current |
| Parker Hannifin CORP | Orifice, Flow Balancing, Wing Tank, Left 2080144-102 | 2080144-102 | Bombardier BD-500-1A10 | 2017-01-12 | current |
| Parker Hannifin CORP | Orifice, Flow Balancing Ctr Tank, Right 2110105-102 | 2110105-102 | Bombardier BD-500-1A10 | 2017-01-12 | current |
| Parker Hannifin CORP | Orifice, Flow Balancing, Ctr Tank, Left 2100001-102 | 2100001-102 | Bombardier BD-500-1A11 | 2017-01-12 | current |
| Parker Hannifin CORP | Orifice, Flow Balancing Ctr Tank, Right 2110105-102 | 2110105-102 | Bombardier BD-500-1A11 | 2017-01-12 | current |
| Parker Hannifin CORP | Orifice, Flow Balancing, Wire Tank, Left 2080144-102 | 2080144-102 | Bombardier BD-500-1A11 | 2017-01-12 | current |
| Parker Hannifin CORP | Orifice, Flow Balancing, Wing Tank, Right 2110104-102 | 2110104-102 | Bombardier BD-500-1A10 | 2017-01-12 | current |
| Parker Hannifin CORP | Orifice, Flow Balancing, Wing Tank, Right 2110104-102 | 2110104-102 | Bombardier BD-500-1A11 | 2017-01-12 | current |
| Parker Hannifin CORP | Orifice, Flow Balancing, Ctr Tank, Left 2100001-102 | 2100001-102 | Bombardier BD-500-1A10 | 2017-01-12 | current |
| Extex Engineered Products INC | Orifice, Compressor Bleed Valve 6899282AL -1 thru -39 | 6899282 -1 thru -39 | Rolls-Royce 250-C28B, C28C, C30 | 2016-09-07 | current |
| Parker Hannifin CORP | Orifice, Flow Balancing, Ctr Tank, Left 2100001-102 | 2100001-102 | Bombardier BD-500-1A10 | 2016-08-24 | current |
| Parker Hannifin CORP | Orifice, Flow Balancing, Wing Tank, Left 2080144-102 | 2080144-102 | Bombardier BD-500-1A10 | 2016-08-24 | current |
| Parker Hannifin CORP | Orifice, Flow Balancing Ctr Tank, Right 2110105-102 | 2110105-102 | Bombardier BD-500-1A10 | 2016-08-24 | current |
| Parker Hannifin CORP | Orifice, Flow Balancing, Wing Tank, Right 2110104-102 | 2110104-102 | Bombardier BD-500-1A10 | 2016-08-24 | current |
| Jet Parts Engineering INC | Orifice Assembly 790167JP-1 | 790167-1 | Pratt & Whitney PW4050, PW4052, PW4056 | 2016-02-23 | current |
| Northwest Aerospace Technologies INC | ORIFICE ASSY 3NS003-0250B0177 | 3NS003-0250B0177 | Boeing 767-300 | 2016-01-20 | current |
| Northwest Aerospace Technologies INC | ORIFICE ASSY 3NS003-0225B0085 | 3NS003-0225B0085 | Boeing 767-300 | 2016-01-20 | current |
| Northwest Aerospace Technologies INC | ORIFICE ASSY 3NS003-0200B0140 | 3NS003-0200B0140 | Boeing 767-300 | 2016-01-20 | current |
| Northwest Aerospace Technologies INC | ORIFICE ASSY 3NS003-0250B0220 | 3NS003-0250B0220 | Boeing 767-300 | 2016-01-20 | current |
| Northwest Aerospace Technologies INC | ORIFICE ASSY 3NS003-0250B0080 | 3NS003-0250B0080 | Boeing 767-300 | 2016-01-20 | current |
| Hye-Tech Manufacturing LLC | Orifice, Diffuser Vent 6874924HT | 6874924 | Rolls-Royce 250-C10B (T63-A-5A), C10D (T63-A-700), C18 | 2015-11-22 | current |
| Panasonic Avionics Corporation | Orifice 804U4000-120 | 804U4000-120 | Boeing 747-400 Series | 2015-04-19 | current |
| Panasonic Avionics Corporation | Orifice 804U4000-101 | 804U4000-101 | Boeing 747-400 Series | 2015-04-19 | current |
| Panasonic Avionics Corporation | Orifice 804U4000-115 | 804U4000-115 | Boeing 747-400 Series | 2015-04-19 | current |
| Panasonic Avionics Corporation | Orifice 804U4000-116 | 804U4000-116 | Boeing 747-400 Series | 2015-04-19 | current |
| Panasonic Avionics Corporation | Orifice 804U4000-118 | 804U4000-118 | Boeing 747-400 Series | 2015-04-19 | current |
| Panasonic Avionics Corporation | Orifice 804U4000-102 | 804U4000-102 | Boeing 747-400 Series | 2015-04-19 | current |
| Panasonic Avionics Corporation | Orifice 804U4000-123 | 804U4000-123 | Boeing 747-400 Series | 2015-04-19 | current |
| Panasonic Avionics Corporation | Orifice 804U4000-111 | 804U4000-111 | Boeing 747-400 Series | 2015-04-19 | current |
| Panasonic Avionics Corporation | Orifice 804U4000-100 | 804U4000-100 | Boeing 747-400 Series | 2015-04-19 | current |
| Panasonic Avionics Corporation | Orifice 804U4000-103 | 804U4000-103 | Boeing 747-400 Series | 2015-04-19 | current |
| Panasonic Avionics Corporation | Orifice 804U4000-112 | 804U4000-112 | Boeing 747-400 Series | 2015-04-19 | current |
| Greenpoint Technologies INC | Orifice G99994007-40-24 | G99994007-40-24 | Boeing 737-700 Series | 2015-03-15 | current |
| Greenpoint Technologies INC | ORIFICE G99994007-12-9 | G99994007-12-9 | Boeing 737-700 Series | 2015-03-15 | current |
| Meggitt Safety Systems INC | Orifice 36500036-1 | TFC14-0050-1 | Boeing 727-100 Series | 2015-02-18 | current |
| Parker Hannifin CORP | Orifice - Minimum Flow 975380-1 | 975380-1 | Airbus A350-941 | 2014-12-02 | current |
| Wencor LLC | Orifice, Valve, Threaded 797774-2WE | 797774-2 | BOEING 767-200 Series 767-300 Series | 2014-11-18 | current |
| Dassault Falcon Jet CORP | Orifice F90-41833-75 | Modification Part | Dassault Aviation Falcon 900 | 2014-10-09 | current |
| United Technologies, Hamilton Sundstrand | ORIFICE, RIGHT MAIN 7012077H01 | 7012077H01 | Boeing 787-9 | 2014-10-08 | current |
| United Technologies, Hamilton Sundstrand | ORIFICE, LEFT MAIN 7012076H01 | 7012076H01 | Boeing 787-9 | 2014-10-08 | current |
| United Technologies, Hamilton Sundstrand | ORIFICE, LEFT MAIN 7012076H01 | 7012076H01 | Boeing 787-9 | 2014-06-22 | current |
| United Technologies, Hamilton Sundstrand | ORIFICE, RIGHT MAIN 7012077H01 | 7012077H01 | Boeing 787-9 | 2014-06-22 | current |
| Wencor LLC | Orifice 39535-1WE | 39535-1 | Saab AB, Saab Aerosystems 340A (SAAB/SF340A) & SAAB 340B | 2014-05-08 | current |
| Parker Hannifin CORP | Orifice, High Flow 2090103-101 | 2090103-101 | Boeing 767-300 SERIES, 767-300F SERIES,... | 2013-12-11 | current |
| Peco Manufacturing CO. INC | Orifice 218W3621-3 | 218W3621-3 | Boeing 777-200 Series, 777-200LR Series,... | 2013-05-02 | current |
| Parker Hannifin CORP | Orifice, Low Flow 2090102-101 | 2090102-101 | Boeing 767-300 Series, 767-300F Series | 2012-09-27 | current |
| Parker Hannifin CORP | Orifice, Low Flow 2090102-101 | 2090102-101 | Boeing 767-300 Series, 767-300F Series | 2012-09-27 | current |
| Parker Hannifin CORP | Orifice, Low Flow 2050077-101 | 2050077-101 | Boeing 747-8 Series | 2012-05-13 | current |
| Parker Hannifin CORP | Orifice, High Flow 2050078-101 | 2050078-101 | Boeing 747-8 Series | 2012-05-13 | current |
| Parker Hannifin CORP | Orifice, High Flow 2050078-101 | 2050078-101 | Boeing 747-8 Series | 2012-05-13 | current |
| Parker Hannifin CORP | Orifice, Low Flow 2050077-101 | 2050077-101 | Boeing 747-8 Series | 2012-05-13 | current |
| Aviation Component Solutions | Orifice, Threaded P00307 | Hamilton Sundstrand P/N 739134-2 Installed in... | Boeing 767-200 Series | 2012-01-17 | current |
| Greenpoint Products & Services | Orifice G99994007-40-24 | G99994007-40-24 | Boeing 737-700 Series | 2011-12-20 | current |
| Parker Hannifin CORP | Orifice, Low Flow 2050077-101 | 2050077-101 | Boeing 747-8F Series | 2011-10-31 | current |
| Parker Hannifin CORP | Orifice, High Flow 2050078-101 | 2050078-101 | Boeing 747-8F Series | 2011-10-31 | current |
| Parker Hannifin CORP | Orifice, High Flow 2050078-101 | 2050078-101 | Boeing 747-8F Series | 2011-10-31 | current |
| Parker Hannifin CORP | Orifice, Low Flow 2050077-101 | 2050077-101 | Boeing 747-8F Series | 2011-10-31 | current |
| Jet Parts Engineering INC | Orifice 3171441JP-2 | 3171441-2 | Boeing 757-200 Series, 757-200PF Series,... | 2011-09-13 | current |
| United Technologies, Hamilton Sundstrand | Orifice, Right Main 7012077H01 | 7012077H01 | Boeing 787-8 | 2011-09-07 | current |
| United Technologies, Hamilton Sundstrand | Orifice, Left Main 7012076H01 | 7012076H01 | Boeing 787-8 | 2011-09-07 | current |
| Aviation Component Solutions | Orifice, Threaded P00307 | Hamilton Sundstrand P/N 739134-2 installed in... | Boeing 767-400ER Series | 2011-08-25 | current |
| Denezol Tool CO INC | Orifice 4917772-501 | 4917772-501 | McDonnell Douglas DC-9-31, DC-9-32, DC-9-32F | 2010-11-22 | current |
| Wencor LLC | Orifice, Valve, Threaded 797774-2WE | 797774-2 | Boeing 747SP series, 747SR series, 747-100 series | 2010-02-02 | current |
| Wencor LLC | Orifice, Threaded 797605-1WA | 797605-1 | Boeing 767-200 series, 767-300 series,... | 2010-02-02 | current |
| Wencor LLC | Orifice 39535-1WE | 39535-1 | Saab AB, Saab Aerosystems 340A (SAAB/SF340A) & SAAB 340B | 2010-02-02 | current |
| Gemini Engineering INC | ORIFICE ASSY 214T3436-330 | 214T3436-330 | Boeing 747-400 Series, 747-400D Series,... | 2009-11-15 | current |
| Goodrich Landing Gear | ORIFICE 69B17175-1 | 69B17175-1 | Boeing 747-100 SERIES, 747-100B SERIES,... | 2009-10-29 | current |
| Goodrich Landing Gear | ORIFICE 69B17175-1 | 69B17175-1 | Boeing 747-100 SERIES, 747-100B SERIES,... | 2009-10-29 | current |
| Gemini Engineering | ORIFICE ASSY 214T3436-194 | 214T3436-194 | Boeing 747-400 Series, 747-400D Series,... | 2009-06-03 | current |
| Volant | Orifice Assembly 214T3436-56 | 214T3436-56 | Boeing 737-600 Series, 737-700 Series,... | 2009-05-19 | current |
| Parker Hannifin CORP | Orifice, Low Flow 2050077-101 | 2050077-101 | Boeing 777-200 Series, 777-200LR Series,... | 2009-04-28 | current |
| Parker Hannifin CORP | Orifice, High Flow 2050078-101 | 2050078-101 | Boeing 777-200 Series, 777-200LR Series,... | 2009-04-28 | current |
| Peco Manufacturing INC | Orifice 218W3621-3 | 218W3621-3 | Boeing 777-200 Series, 777-200LR Series,... | 2009-04-07 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Orifice, Adjustable 3171680-1WD | Honeywell 3171680-1 | Boeing 737-300, -400, -500 | 2009-01-07 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Orifice, Variable 3171681-1WD | Honeywell 3171681-1 | Boeing 737-300, -400, -500 | 2009-01-07 | current |
| Aviation Component Solutions | Orifice, Threaded P00307 | Hamilton Sundstrand P/N 739134-2 installed in... | Boeing 767-400ER Series | 2008-10-07 | current |
| Gulfstream Aerospace Corporation | Orifice 25G7830031-501 | 25G7830031-501 | Gulfstream G150 | 2008-04-02 | current |
| Gulfstream Aerospace Corporation | Orifice 25G7830032-001 | 25G7830032-001 | Gulfstream G150 | 2008-04-02 | current |
| Gulfstream Aerospace Corporation | Orifice 25G7830030-501 | 25G7830030-501 | Gulfstream G150 | 2008-04-02 | current |
| Gulfstream Aerospace Corporation | Orifice 25G7830030-503 | 25G7830030-503 | Gulfstream G150 | 2008-04-02 | current |
| Gulfstream Aerospace Corporation | Orifice 25G7830030-505 | 25G7830030-505 | Gulfstream G150 | 2008-04-02 | current |
| Gulfstream Aerospace Corporation | Orifice 25G7830031-503 | 25G7830031-503 | Gulfstream G150 | 2008-04-02 | current |
| Gemini Engineering | Orifice Assy 69-73921-3 | 69-73921-3 | Boeing 737-300 Series, 737-400 Series,... | 2007-08-27 | current |
| Aero Arc INC | Orifice Assy ABM7488-509 | (ABM7488-509) | McDonnell Douglas MD-11 MD-11F | 2007-08-22 | current |
| Gulfstream Aerospace Corporation | Orifice 25G7830031-503 | 25G7830031-503 | Gulfstream Aerospace LP Gulfstream G150 | 2007-08-01 | current |
| Gulfstream Aerospace Corporation | Orifice 25G7830030-503 | 25G7830030-503 | Gulfstream Aerospace LP Gulfstream G150 | 2007-08-01 | current |
| Gulfstream Aerospace Corporation | Orifice 25G7830030-505 | 25G7830030-505 | Gulfstream Aerospace LP Gulfstream G150 | 2007-08-01 | current |
| Gulfstream Aerospace Corporation | Orifice 25G7830032-001 | 25G7830032-001 | Gulfstream Aerospace LP Gulfstream G150 | 2007-08-01 | current |
| Gulfstream Aerospace Corporation | Orifice 25G7830030-501 | 25G7830030-501 | Gulfstream Aerospace LP Gulfstream G150 | 2007-08-01 | current |
| Gulfstream Aerospace Corporation | Orifice 25G7830031-501 | 25G7830031-501 | Gulfstream Aerospace LP Gulfstream G150 | 2007-08-01 | current |
| Gulfstream Aerospace Corporation | Orifice 4AS7835010-033 | 4AS7835010-033 | Gulfstream Galaxy, 200 | 2005-05-09 | current |
| Gulfstream Aerospace Corporation | Orifice 4AS7835010-025 | 4AS7835010-025 | Gulfstream Galaxy, 200 | 2005-05-09 | current |
| Gulfstream Aerospace Corporation | Orifice 4AS7835010-019 | 4AS7835010-019 | Gulfstream Galaxy, 200 | 2005-05-09 | current |
| Gulfstream Aerospace Corporation | Orifice 4AS7835010-031 | 4AS7835010-031 | Gulfstream Galaxy, 200 | 2005-05-09 | current |
| Gulfstream Aerospace Corporation | Orifice 4AS7835010-035 | 4AS7835010-035 | Gulfstream Galaxy, 200 | 2005-05-09 | current |
| Northwest Aerospace Technologies | Orifice Kit 33N00009-1 | Modification Part | Boeing 757-200 (Aircraft S/N s 29025, 29026, 29027 | 2004-11-16 | current |
| Northwest Aerospace Technologies | Orifice 3NS003-0350B0290 | Modification Part | Boeing 757-200 S/Ns 29025, 29026, 29027 | 2004-11-07 | current |
| Northwest Aerospace Technologies | Orifice 3NS003-0250B0105 | Modification Part | Boeing 757-200 S/Ns 29025, 29026, 29027 | 2004-11-07 | current |
| Northwest Aerospace Technologies | Orifice 3NS003-0350B0170 | Modification Part | Boeing 757-200 S/Ns 29025, 29026, 29027 | 2004-11-07 | current |
| Northwest Aerospace Technologies | Orifice 3NS003-0250B0145 | Modification Part | Boeing 757-200 S/Ns 29025, 29026, 29027 | 2004-11-07 | current |
| Northwest Aerospace Technologies | Orifice 3NS003-0475B0285 | Modification Part | Boeing 757-200 S/Ns 29025, 29026, 29027 | 2004-11-07 | current |
| Northwest Aerospace Technologies | Orifice 3NS003-0625B0385 | Modification Part | Boeing 757-200 S/Ns 29025, 29026, 29027 | 2004-11-07 | current |
| Northwest Aerospace Technologies | Orifice 3NS003-0350B0225 | Modification Part | Boeing 757-200 S/Ns 29025, 29026, 29027 | 2004-11-07 | current |
| Aviation Component Solutions | Orifice, Threaded P00307 | Hamilton Sundstrand 739134-2 | Boeing 747-200B Series, 747-200F Series,... | 2003-11-17 | current |
| Swisturbine INC | Orifice, Trimming, (Plug) 503P946-01ST | 503P946-01 | Pratt & Whitney PW2037 | 2003-09-10 | current |
| Hye-Tech Manufacturing LLC | Orifice, Diffuser Vent 6874924HT | 6874924 | Rolls-Royce 250-C18, C20, C20B | 2003-06-28 | current |
| Hye-Tech Manufacturing LLC | Orifice, Diffuser Vent 6874924HT | 6874924 | Rolls-Royce 250-C18, C20, C20B | 2003-05-01 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-10 | 6899282-11 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-29 | 6899282-30 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-39 | 6899282-40 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-21 | 6899282-22 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-32 | 6899282-33 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-13 | 6899282-14 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-6 | 6899282-7 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-4 | 6899282-5 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-8 | 6899282-9 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-3 | 6899282-4 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-16 | 6899282-17 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-27 | 6899282-28 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-11 | 6899282-12 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-12 | 6899282-13 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-7 | 6899282-8 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-33 | 6899282-34 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-19 | 6899282-20 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-15 | 6899282-16 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-38 | 6899282-39 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-35 | 6899282-36 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-18 | 6899282-19 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-23 | 6899282-24 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
| Timken Alcor Aerospace Technologies INC | Orifice, Compressor Bleed Valve 6899282AL-1 | 6899282-2 | Rolls-Royce 250-C28B, C28C, C30 | 2002-01-13 | current |
The first 150 of 202.
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.