Gap Cover
No failure report names the gap cover. 137 FAA approvals let 23 companies make a replacement gap cover, Safran Cabin INC. holding the most (26).
Approved replacement parts 137 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a gap cover and sell it as an approved part for the models named. These are the companies holding such approvals for a gap cover:
Safran Cabin INC. 26Volant 19Wencor LLC (Formerly Dixie Aerospace LLC) 15Gemini Engineering 10Amsafe Bridport 10K&L Soaring LLC 9Gemini Engineering INC 9Mechanical Enterprises, INC. 5Aar Component Services - Hot Springs, LLC 5Northwest Aerospace Technologies 4Spirit Aerosystems INC 3Magee Plastics Company 3Greenpoint Technologies INC 3Aws (USA) INC 3Peco Manufacturing INC 2Peco Manufacturing CO. INC 2Peco INC 2Aar Pma Products 2Seal Dynamics INC 1Pexco Aerospace INC. 1Able Engineering and Component Services, INC. 1Able Aerospace Services, INC. 1Aim Aerospace INC 1
For these models most: Boeing 757 (41), Boeing 747 (20), Boeing 737 (20), Boeing 767 (14), Boeing 787 Dreamliner (12), Boeing 777 (10), Schweizer SGU 2 (6), Schweizer SGS 2 gliders (2-33 and 2-32) (5), Airbus A321 (3), Airbus A320 (3), Airbus A319 (3), Schweizer SGU-1 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Safran Cabin INC. | GAP COVER TOP ASSY C333004-123 | C333004-123 | The Boeing Company 787-8 | 2026-07-24 | current |
| Safran Cabin INC. | GAP COVER TOP ASSY C333004-145 | C333004-145 | The Boeing Company 787-8, 787-9 | 2026-07-24 | current |
| Safran Cabin INC. | GAP COVER TOP ASSY C333004-137 | C333004-137 | The Boeing Company 787-9 | 2026-07-24 | current |
| Safran Cabin INC. | GAP COVER TOP ASSY C333004-139 | C333004-139 | The Boeing Company 787-8 | 2026-07-24 | current |
| Safran Cabin INC. | GAP COVER TOP ASSY C333004-125 | C333004-125 | The Boeing Company 787-9 | 2026-07-24 | current |
| Safran Cabin INC. | GAP COVER TOP ASSY C333004-127 | C333004-127 | The Boeing Company 787-9 | 2026-07-24 | current |
| Safran Cabin INC. | GAP COVER TOP ASSY C333004-135 | C333004-135 | The Boeing Company 787-8 | 2026-07-24 | current |
| Safran Cabin INC. | GAP COVER TOP ASSY C333004-143 | C333004-143 | The Boeing Company 787-8, 787-9 | 2026-07-24 | current |
| Safran Cabin INC. | GAP COVER TOP ASSY C333004-144 | C333004-144 | The Boeing Company 787-8, 787-9 | 2026-07-24 | current |
| Safran Cabin INC. | GAP COVER TOP ASSY C333004-121 | C333004-121 | The Boeing Company 787-8, 787-9 | 2026-07-24 | current |
| Safran Cabin INC. | GAP COVER TOP ASSY C333004-124 | C333004-124 | The Boeing Company 787-8 | 2026-07-24 | current |
| Safran Cabin INC. | GAP COVER TOP ASSY C333004-122 | C333004-122 | The Boeing Company 787-8, 787-9 | 2026-07-24 | current |
| Pexco Aerospace INC. | GAP COVER RACEWAY EXTRUSION BAC1522-193 | BAC1522-193 | The Boeing Company 737-8200 | 2026-06-17 | current |
| Safran Cabin INC. | Gap Cover Sconce B832261-501AY | B832261-501AY | Airbus S.A.S. A380-842 | 2025-08-22 | current |
| Safran Cabin INC. | Gap Cover Sconce B832261-501AY | B832261-501AY | Airbus S.A.S. A380-841 | 2025-08-22 | current |
| Safran Cabin INC. | Gap Cover Sconce B832261-501BE | B832261-501BE | Airbus S.A.S. A380-841 | 2025-08-22 | current |
| Safran Cabin INC. | Gap Cover Sconce B832261-501AY | B832261-501AY | Airbus S.A.S. A380-841 | 2025-08-22 | current |
| Safran Cabin INC. | Gap Cover Sconce B832261-501BE | B832261-501BE | Airbus S.A.S. A380-841 | 2025-08-22 | current |
| Safran Cabin INC. | Gap Cover Sconce B832261-501AY | B832261-501AY | Airbus S.A.S. A380-842 | 2025-08-22 | current |
| Safran Cabin INC. | GAP COVER 9541032-5 | 9541032-5 | De Havilland... DHC-8-400 | 2025-08-22 | current |
| Safran Cabin INC. | Gap Cover Sconce B832261-501AV | B832261-501AV | Airbus S.A. A380-841, A380-842 | 2025-08-19 | current |
| Safran Cabin INC. | Gap Cover Sconce B832261-501AM | B832261-501AM | Airbus S.A.S A380-841, A380-842, A380-861 | 2025-08-19 | current |
| Safran Cabin INC. | Gap Cover Scone B832261-501AL | B832261-501AL | Airbus S.A.S A380-841, A380-842 | 2025-08-19 | current |
| Safran Cabin INC. | Gap Cover Sconce B834083-501AM | B834083-501AM | Airbus S.A.S A380-841, A380-842, A380-861 | 2025-08-19 | current |
| Safran Cabin INC. | Gap Cover Sconce B834086-501AM | B834086-501AM | Airbus S.A.S A380-841, A380-842, A380-861 | 2025-08-19 | current |
| Safran Cabin INC. | Gap Cover - Scone B834083-501AL | B834083-501AL | Airbus S.A.S A380-841, A380-842 | 2025-08-19 | current |
| Safran Cabin INC. | Gap Cover - Scone B834086-501AL | B834086-501AL | Airbus S.A.S A380-841, A380-842 | 2025-08-19 | current |
| Aar Component Services - Hot Springs, LLC | Gap Cover T-H3272-10 | H3272-10 | The Boeing Company 757-200 Series | 2025-08-18 | current |
| Aar Component Services - Hot Springs, LLC | Gap Cover T-H3272-9 | H3272-9 | The Boeing Company 757-200 Series | 2025-08-18 | current |
| Aar Component Services - Hot Springs, LLC | Gap Cover T-H3272-1 | H3272-1 | The Boeing Company 757-200 Series | 2025-08-18 | current |
| Aar Component Services - Hot Springs, LLC | Gap Cover T-H3272-8 | H3272-8 | The Boeing Company 757-200 Series | 2025-08-18 | current |
| Aar Component Services - Hot Springs, LLC | Gap Cover T-H3272-7 | H3272-7 | The Boeing Company 757-200 Series | 2025-08-18 | current |
| Magee Plastics Company | Gap Cover 121-12005-1B | D2529186005000 | Airbus SAS A319-112, A319-115, A319-151N | 2025-08-14 | current |
| Magee Plastics Company | Gap Cover 121-12005-1A | D2529186001000 | Airbus SAS A319-112, A319-115, A319-151N | 2025-08-14 | current |
| Magee Plastics Company | Gap Cover 121-12005-2 | D2529186020000 | Airbus SAS A319-112, A319-115, A319-151N | 2025-08-14 | current |
| K&L Soaring LLC | Gap Cover Assembly 19906 | 19906 | Schweizer SGU 1-19, SGU 1-19A | 2022-10-06 | current |
| K&L Soaring LLC | Gap Cover Assembly 22946 | 22946 | Schweizer SGU 2-22E, SGU 2-22EK, SGS 2-33 | 2022-10-06 | current |
| K&L Soaring LLC | Gap Cover Assembly 33946 | 33946 | Schweizer SGS 2-33B | 2022-10-06 | current |
| K&L Soaring LLC | Gap Cover Assembly 22945 | 22945 | Schweizer SGU 2-22E, SGU 2-22EK, SGS 2-33 | 2022-10-06 | current |
| K&L Soaring LLC | Gap Cover Assembly 22914 | 22914 | Schweizer SGU 2-22, SGU 2-22A, SGU 2-22C | 2022-10-06 | current |
| Amsafe Bridport | GAP COVER 421W1285-4 | 421W1285-4 | BOEING 777-200 SERIES, 777-200LR SERIES,... | 2022-09-27 | current |
| Amsafe Bridport | GAP COVER 421W1285-6 | 421W1285-6 | BOEING 777-200 SERIES, 777-200LR SERIES,... | 2022-09-27 | current |
| Amsafe Bridport | GAP COVER 421W1285-5 | 421W1285-5 | BOEING 777-200 SERIES, 777-200LR SERIES,... | 2022-09-27 | current |
| Amsafe Bridport | GAP COVER 421W1285-7 | 421W1285-7 | BOEING 777-200 SERIES, 777-300 SERIES | 2022-09-27 | current |
| Amsafe Bridport | GAP COVER 421W1285-8 | 421W1285-8 | BOEING 777-200 SERIES, 777-200LR SERIES,... | 2022-09-27 | current |
| Greenpoint Technologies INC | Gap Cover Assy. G90032002-711 | Modification Part | Boeing 757-200 | 2019-11-25 | current |
| Greenpoint Technologies INC | Gap Cover Assy. G90032002-715 | Modification Part | Boeing 757-200 | 2019-11-25 | current |
| Greenpoint Technologies INC | Gap Cover Assy. G90032002-713 | Modification Part | Boeing 757-200 | 2019-11-25 | current |
| Able Aerospace Services, INC. | Gap Cover H1582-1BAA | H1582-1B | BOEING 757-200 Series, 757-200PF Series,... | 2017-02-01 | current active |
| Able Engineering and Component Services, INC. | Gap Cover H1582-1BAA | H1582-1B | The Boeing Company 757-200 Series, 757-200PF Series,... | 2017-02-01 | current active |
| Peco INC | Gap Cover 417U3050-7111B | 417U3050-7111B | Boeing 747-400 Series | 2015-02-02 | current |
| Peco INC | GAP COVER - READING LIGHT PANEL - INBD PSU 417T3063-304A | 417T3063-304A | Boeing 767-200 Series, 767-300 Series | 2015-02-02 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-7 | Britax P/N H3272-7 | Boeing 757-200 Series | 2014-09-04 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-10 | Britax P/N H3272-10 | Boeing 757-200 Series | 2014-09-04 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-9 | Britax P/N H3272-9 | Boeing 757-200 Series | 2014-09-04 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-8 | Britax P/N H3272-8 | Boeing 757-200 Series | 2014-09-04 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-1 | Britax P/N H3272-1 | Boeing 757-200 Series | 2014-09-04 | current |
| Seal Dynamics INC | Gap Cover 413T1117-2ASD | Boeing P/N 413T1117-2A | Boeing 767-200 Series, 767-300 Series | 2013-11-19 | current |
| Peco Manufacturing CO. INC | Gap Cover 417U3050-7111B | 417U3050-7111B | Boeing 747-400 Series | 2013-05-02 | current |
| Peco Manufacturing CO. INC | GAP COVER - READING LIGHT, PANEL - INBD PSU 417T3063-304A | 417T3063-304A | Boeing 767-200 Series, 767-300 Series | 2013-05-02 | current |
| K&L Soaring LLC | Gap Cover Assembly 19906 | 19906 | Schweizer SGU 1-19 & SGU 1-19A | 2011-10-26 | current |
| K&L Soaring LLC | Gap Cover Assembly 22945 | 22945 | Schweizer SGU 2-22E, SGU 2-22EK, SGS 2-33 | 2011-10-26 | current |
| K&L Soaring LLC | Gap Cover Assembly-Glass 22946 | 22946 | Schweizer SGU 2-22E, SGU 2-22EK, SGS 2-33 | 2011-10-26 | current |
| K&L Soaring LLC | Gap Cover Assembly 22914 | 22914 | Schweizer SGU 2-22, SGU 2-22A, SGU 2-22C | 2011-10-26 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover 412N1131-22CU-AAR | Boeing 412N1131-22CU | Boeing 737-300, -400, -500 series | 2011-06-20 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover 412N1131-26CUAAR | Boeing 412N1131-26CU | Boeing 737-200, -200C, -300 series | 2011-06-20 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-7 | Britax P/N H3272-7 | Boeing 757-200 Series | 2011-04-21 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-9 | Britax P/N H3272-9 | Boeing 757-200 Series | 2011-04-21 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-8 | Britax P/N H3272-8 | Boeing 757-200 Series | 2011-04-21 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-9 | Britax P/N H3272-9 | Boeing 757-200 Series | 2011-04-21 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-7 | Britax P/N H3272-7 | Boeing 757-200 Series | 2011-04-21 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-8 | Britax P/N H3272-8 | Boeing 757-200 Series | 2011-04-21 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-1 | Britax P/N H3272-1 | Boeing 757-200 Series | 2011-04-21 | current |
| Wencor LLC (Formerly Dixie Aerospace LLC) | Gap Cover MEH3272-1 | Britax P/N H3272-1 | Boeing 757-200 Series | 2011-04-21 | current |
| Amsafe Bridport | GAP COVER 421W1285-8 | (421W1285-8) | BOEING 777-200 SERIES, 777-200LR SERIES,... | 2011-02-03 | current |
| Amsafe Bridport | GAP COVER 421W1285-4 | (421W1285-4) | BOEING 777-200 SERIES, 777-200LR SERIES,... | 2011-02-03 | current |
| Amsafe Bridport | GAP COVER 421W1285-7 | (421W1285-7) | BOEING 777-200 SERIES, 777-300 SERIES | 2011-02-03 | current |
| Amsafe Bridport | GAP COVER 421W1285-6 | (421W1285-6) | BOEING 777-200 SERIES, 777-200LR SERIES,... | 2011-02-03 | current |
| Amsafe Bridport | GAP COVER 421W1285-5 | (421W1285-5) | BOEING 777-200 SERIES, 777-200LR SERIES,... | 2011-02-03 | current |
| Aim Aerospace INC | Gap Cover Assembly MDL-10960 | Modification Part | Boeing 757-200 SERIES | 2010-09-30 | current |
| Spirit Aerosystems INC | GAP COVER 413U1530-34A | 413U1530-34A | Boeing 747-400 SERIES, 747-400D SERIES | 2010-07-22 | current |
| Volant | Gap Cover Assy 65C16840-25 | 65C16840-25 | The Boeing Company 737-200 Series | 2010-07-07 | current |
| Volant | Gap Cover Assy 65C16840-26 | 65C16840-26 | The Boeing Company 737-200 Series | 2010-07-07 | current |
| Volant | Gap Cover 65C16876-22 | 65C16876-22 | The Boeing Company 737-200 Series | 2010-07-07 | current |
| Volant | Gap Cover 65C16876-14 | 65C16876-14 | The Boeing Company 737-200 Series | 2010-07-07 | current |
| Volant | Gap Cover 65C16876-25 | 65C16876-25 | The Boeing Company 737-200 Series | 2010-07-07 | current |
| Volant | Gap Cover 65C16876-10 | 65C16876-10 | The Boeing Company 737-200 Series | 2010-07-07 | current |
| Volant | Gap Cover Assy 65C16840-47 | 65C16840-47 | The Boeing Company 737-200 Series | 2010-07-07 | current |
| Volant | Gap Cover Assy 65C16840-19 | 65C16840-19 | The Boeing Company 737-200 Series | 2010-07-07 | current |
| Volant | Gap Cover 65C16876-26 | 65C16876-26 | The Boeing Company 737-200 Series | 2010-07-07 | current |
| Aar Pma Products | Gap Cover 412N1131-26CUAAR | 412N1131-26CU | Boeing 737-200 Series 737-200C Series... | 2010-01-31 | current |
| Aar Pma Products | Gap Cover 412N1131-22CU-AAR | 412N1131-22CU | Boeing 737-300 Series, 737-400 Series,... | 2010-01-31 | current |
| Gemini Engineering | GAP COVER ASSY 412N1131-22LU | 412N1131-22LU | Boeing 737-300 Series, 737-400 Series,... | 2009-11-15 | current |
| Gemini Engineering | GAP COVER 413U1530-34A | 413U1530-34A | Boeing 747-400 Series, 747-400D Series | 2009-11-15 | current |
| Gemini Engineering | GAP COVER ASSY 214T2550-5 | 214T2550-5 | Boeing 767-300F Series | 2009-11-15 | current |
| Gemini Engineering | GAP COVER 413U1729-2B | 413U1729-2B | Boeing 747-400 Series | 2009-11-15 | current |
| Gemini Engineering | GAP COVER ASSY 412N1131-26LU | 412N1131-26LU | Boeing 757-200 Series | 2009-11-15 | current |
| Gemini Engineering | GAP COVER 413T1117-4B | 413T1117-4B | Boeing 767-200 Series, 767-300 Series | 2009-11-15 | current |
| Gemini Engineering | GAP COVER 411T3513-39A | 411T3513-39A | Boeing 767-200 Series, 767-300 Series | 2009-11-15 | current |
| Gemini Engineering INC | GAP COVER ASSY 412N1131-22LU | 412N1131-22LU | Boeing 737-300 Series, 737-400 Series,... | 2009-11-15 | current |
| Gemini Engineering INC | GAP COVER 413U1530-35A | 413U1530-35A | Boeing 747-400 Series, 747-400D Series | 2009-11-15 | current |
| Gemini Engineering INC | GAP COVER 413T1117-4B | 413T1117-4B | Boeing 767-200 Series, 767-300 Series | 2009-11-15 | current |
| Gemini Engineering INC | GAP COVER ASSY 412N1131-26LU | 412N1131-26LU | Boeing 757-200 Series | 2009-11-15 | current |
| Gemini Engineering INC | GAP COVER 413U1729-2B | 413U1729-2B | Boeing 747-400 Series | 2009-11-15 | current |
| Gemini Engineering INC | GAP COVER ASSY 214T2550-5 | 214T2550-5 | Boeing 767-300F Series | 2009-11-15 | current |
| Gemini Engineering INC | GAP COVER 413U1530-34A | 413U1530-34A | Boeing 747-400 Series, 747-400D Series | 2009-11-15 | current |
| Gemini Engineering INC | GAP COVER ASSY 412N1131-22YU | 412N1131-22YU | Boeing 737-300 Series, 737-400 Series,... | 2009-11-15 | current |
| Gemini Engineering INC | GAP COVER 411T3513-39A | 411T3513-39A | Boeing 767-200 Series, 767-300 Series | 2009-11-15 | current |
| Aws (USA) INC | GAP COVER 413T1117-7A | (413T1117-7A) | Boeing 767-200 SERIES, 767-300 SERIES | 2009-07-26 | current |
| Aws (USA) INC | GAP COVER ASSY 214T2550-5 | (214T2550-5) | Boeing 767-300F SERIES | 2009-07-26 | current |
| Aws (USA) INC | GAP COVER, AFT OUTBD 65B12188-9 | (65B12188-9) | Boeing 747-100 SERIES, 747-100B SERIES,... | 2009-07-26 | current |
| Gemini Engineering | GAP COVER 413T1117-2A | 413T1117-2A | Boeing 767-200 Series, 767-300 Series | 2009-06-03 | current |
| Gemini Engineering | GAP COVER 413T1117-4A | 413T1117-4A | Boeing 767-200 Series, 767-300 Series | 2009-06-03 | current |
| Volant | Gap Cover 411U7115-601 | 411U7115-601 | Boeing 747-400 Series, 747-400D Series | 2009-05-19 | current |
| Volant | Gap Cover 411U7115-605 | 411U7115-605 | Boeing 747-400 Series, 747-400D Series | 2009-05-19 | current |
| Volant | Gap Cover 411U7115-602 | 411U7115-602 | Boeing 747-400 Series, 747-400D Series | 2009-05-19 | current |
| Volant | Gap Cover 411U7115-608 | 411U7115-608 | Boeing 747-400 Series, 747-400D Series | 2009-05-19 | current |
| Volant | Gap Cover 411U7115-301 | 411U7115-301 | Boeing 747-400 Series, 747-400D Series | 2009-05-19 | current |
| Volant | Gap Cover 413U1729-1 | 413U1729-1 | Boeing 747-400 Series, 747-400D Series | 2009-05-19 | current |
| Volant | Gap Cover 411U7115-309 | 411U7115-309 | Boeing 747-400 Series, 747-400D Series | 2009-05-19 | current |
| Volant | Gap Cover 411U7115-610 | 411U7115-610 | Boeing 747-400 Series, 747-400D Series | 2009-05-19 | current |
| Volant | Gap Cover 411U7115-606 | 411U7115-606 | Boeing 747-400 Series, 747-400D Series | 2009-05-19 | current |
| Volant | Gap Cover 413U1729-2 | 413U1729-2 | Boeing 747-400 Series, 747-400D Series | 2009-05-19 | current |
| Spirit Aerosystems INC | GAP COVER ASSY 412N1131-26CU | 412N1131-26CU | Boeing 737-200 SERIES, 737-300 SERIES 757-200 SERIES | 2009-05-17 | current |
| Spirit Aerosystems INC | GAP COVER ASSY 412N1131-22CU | 412N1131-22CU | Boeing 737-300 SERIES, 737-400 SERIES,... | 2009-05-17 | current |
| Peco Manufacturing INC | GAP COVER - READING LIGHT PANEL - INBD PSU 417T3063-304A | 417T3063-304A | Boeing 767-200 Series, 767-300 Series | 2009-04-07 | current |
| Peco Manufacturing INC | Gap Cover 417U3050-7111B | 417U3050-7111B | Boeing 747-400 Series | 2009-04-07 | current |
| Mechanical Enterprises, INC. | Gap Cover MEH3272-9 | Britax P/N H3272-9 | Boeing 757-200 Series | 2008-11-04 | current |
| Mechanical Enterprises, INC. | Gap Cover MEH3272-10 | Britax P/N H3272-10 | Boeing 757-200 Series | 2008-11-04 | current |
| Mechanical Enterprises, INC. | Gap Cover MEH3272-7 | Britax P/N H3272-7 | Boeing 757-200 Series | 2008-11-04 | current |
| Mechanical Enterprises, INC. | Gap Cover MEH3272-1 | Britax P/N H3272-1 | Boeing 757-200 Series | 2008-11-04 | current |
| Mechanical Enterprises, INC. | Gap Cover MEH3272-8 | Britax P/N H3272-8 | Boeing 757-200 Series | 2008-11-04 | current |
| Gemini Engineering | GAP COVER ASSY 412N1131-22CU | 412N1131-22CU | Boeing 737-300 Series, 737-400 Series,... | 2008-08-12 | current |
| Northwest Aerospace Technologies | Gap Cover Assembly G90032002-713 | G90032002-713 | Boeing 757-200 (Aircraft S/N s 29025, 29026, 29027 | 2004-11-18 | current |
| Northwest Aerospace Technologies | Gap Cover G90032003-1 | G90032003-1 | Boeing 757-200 (Aircraft S/N s 29025, 29026, 29027 | 2004-11-18 | current |
| Northwest Aerospace Technologies | Gap Cover Assembly G90032002-715 | G90032002-715 | Boeing 757-200 (Aircraft S/N s 29025, 29026, 29027 | 2004-11-18 | current |
| Northwest Aerospace Technologies | Gap Cover Assembly G90032002-711 | G90032002-711 | Boeing 757-200 (Aircraft S/N s 29025, 29026, 29027 | 2004-11-18 | 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.