Parts
Two public FAA records meet here. The failure reports that airlines and repair shops file say which part failed, on what aircraft, and how (worn, cracked, leaking); the words they use are brought to one plain name, so "BRAKE ASSY", "Brake Assembly" and "brake" are one part. The parts manufacturer approvals say which companies may make a replacement part of that name for which models. 1,227,278 approvals held by 3,185 companies, 1,227,228 of them current. Click a part for its page; a part makers list is beside it.
Approved replacement parts by system 1,227,278 approvals
Approved parts by system, as a table
Approvals granted by year
Approvals by year, as a table
| approvals | |
|---|---|
| 1990 | 1,112 |
| 1991 | 4,260 |
| 1992 | 11,202 |
| 1993 | 8,753 |
| 1994 | 8,945 |
| 1995 | 11,371 |
| 1996 | 10,536 |
| 1997 | 18,003 |
| 1998 | 20,081 |
| 1999 | 18,991 |
| 2000 | 21,483 |
| 2001 | 30,752 |
| 2002 | 14,589 |
| 2003 | 37,407 |
| 2004 | 24,859 |
| 2005 | 76,711 |
| 2006 | 48,067 |
| 2007 | 36,034 |
| 2008 | 37,630 |
| 2009 | 57,789 |
| 2010 | 48,738 |
| 2011 | 63,745 |
| 2012 | 74,881 |
| 2013 | 64,140 |
| 2014 | 45,366 |
| 2015 | 100,038 |
| 2016 | 50,349 |
| 2017 | 24,220 |
| 2018 | 36,125 |
| 2019 | 36,555 |
| 2020 | 23,146 |
| 2021 | 28,183 |
| 2022 | 27,634 |
| 2023 | 19,441 |
| 2024 | 14,062 |
| 2025 | 54,071 |
| 2026 | 11,539 |
Models with the most approved replacement parts
Sources: the FAA's service difficulty reports (1995 to date; the part name as the reporter wrote it, reduced to its first plain words) and the FAA's parts manufacturer approvals from the Dynamic Regulatory System. A report counts a part that failed and was fixed; it does not say how many of that part are flying, so a common part on a big fleet is reported more. "Unknown" and blank names are left out.