Fault Message
135 failure reports named the fault message in the last ten years, 136 since 1995, most often on the Boeing 737; the condition most often found was "false activation".
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1995 | 1 |
| 2017 | 15 |
| 2018 | 43 |
| 2019 | 15 |
| 2020 | 23 |
| 2021 | 24 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 3 |
| 2026 | 5 |
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
false activation89illuminated21false indication12activated6abnormal2unknown2intermittent1malfunctioned1odor1
Conditions found, as a table
| reports | |
|---|---|
| false activation | 89 |
| illuminated | 21 |
| false indication | 12 |
| activated | 6 |
| abnormal | 2 |
| unknown | 2 |
| intermittent | 1 |
| malfunctioned | 1 |
| odor | 1 |
Engines most often reporting it
CFM International CFM56-7B27 19CFM International CFM56-7B27E 11CFM International LEAP-1A33 11CFM International CFM56-7B27/B3 3Rolls-Royce RB-211 series 3International Aero Engines V2527-A5 2CFM International CFM56-5B4/3 1General Electric CF6-80C2B6 1General Electric CF6-80E1A4 1General Electric GE90 series 1
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.