Lock Fastener
13 failure reports named the lock fastener in the last ten years, 22 since 2007, most often on the Boeing 737; the condition most often found was "loose".
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 2007 | 2 |
| 2012 | 1 |
| 2013 | 4 |
| 2014 | 2 |
| 2016 | 2 |
| 2017 | 2 |
| 2019 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 4 |
Which system the reports file it under last ten years
Reports by system, as a table
| reports | |
|---|---|
| Airframe structure | 13 |
Models most often reporting it last ten years
Boeing 7376Bombardier CL-600 Challenger and CRJ3Boeing 7572Airbus A3301Piper PA-46 Malibu, Mirage, Matrix and M-Class1
Models most reported, as a table
| reports | |
|---|---|
| Boeing 737 | 6 |
| Bombardier CL-600 Challenger and CRJ | 3 |
| Boeing 757 | 2 |
| Airbus A330 | 1 |
| Piper PA-46 Malibu, Mirage, Matrix and M-Class | 1 |
How it failed the condition found, last ten years
loose4corroded2pulled2misinstalled1missing1sheared1unknown1unsecure1
Conditions found, as a table
| reports | |
|---|---|
| loose | 4 |
| corroded | 2 |
| pulled | 2 |
| misinstalled | 1 |
| missing | 1 |
| sheared | 1 |
| unknown | 1 |
| unsecure | 1 |
Engines most often reporting it
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.