Fmu
87 failure reports named the fmu in the last ten years, 250 since 1995, most often on the Airbus A330; the condition most often found was "failed". 11 FAA approvals let 1 company make a replacement fmu, United Technologies, Hamilton Sundstrand holding the most (11).
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1995 | 2 |
| 1998 | 1 |
| 2000 | 2 |
| 2001 | 9 |
| 2002 | 4 |
| 2003 | 5 |
| 2004 | 4 |
| 2005 | 6 |
| 2006 | 7 |
| 2007 | 7 |
| 2008 | 10 |
| 2009 | 11 |
| 2010 | 10 |
| 2011 | 17 |
| 2012 | 21 |
| 2013 | 16 |
| 2014 | 14 |
| 2015 | 17 |
| 2016 | 7 |
| 2017 | 10 |
| 2018 | 7 |
| 2019 | 12 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 10 |
| 2023 | 9 |
| 2024 | 10 |
| 2025 | 8 |
| 2026 | 9 |
Which system the reports file it under last ten years
Reports by system, as a table
| reports | |
|---|---|
| Engine | 83 |
| Fuel system | 2 |
| Flight controls | 1 |
| Heating, ice protection and utility systems | 1 |
Models most often reporting it last ten years
How it failed the condition found, last ten years
Conditions found, as a table
| reports | |
|---|---|
| failed | 18 |
| faulted | 17 |
| malfunctioned | 13 |
| faulty | 10 |
| leaking | 10 |
| unserviceable | 5 |
| defective | 3 |
| fluctuates | 3 |
| inoperative | 2 |
| unreliable | 2 |
Engines most often reporting it
Approved replacement parts 11 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a fmu and sell it as an approved part for the models named. These are the companies holding such approvals for a fmu:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| United Technologies, Hamilton Sundstrand | FMU/PUMP JFC800-1 819800-9 | 3122419-10 | Pratt & Whitney Canada PW150A | 2006-09-19 | current |
| United Technologies, Hamilton Sundstrand | FMU/PUMP JFC800-1 819800-9 | 3122419-10 | Pratt & Whitney Canada PW150A | 2006-09-19 | current |
| United Technologies, Hamilton Sundstrand | FMU/Pump JFC800-1 819800-8 | 3122419-09 | Pratt & Whitney Canada PW150A | 2006-03-13 | current |
| United Technologies, Hamilton Sundstrand | FMU/Pump JFC800-1 819800-7 | 3122419-08 | Pratt & Whitney Canada PW150A | 2005-04-24 | current |
| United Technologies, Hamilton Sundstrand | FMU/Pump JFC800-1 819800-7 | 3122419-08 | Pratt & Whitney Canada PW150A | 2005-04-24 | current |
| United Technologies, Hamilton Sundstrand | FMU/Pump JFC800-1 819800-4 | 3122419-06 | Pratt & Whitney Canada PW150A | 2003-05-06 | current |
| United Technologies, Hamilton Sundstrand | FMU/Pump JFC800-1 819800-6 | 3122419-07 | Pratt & Whitney Canada PW150A | 2003-05-06 | current |
| United Technologies, Hamilton Sundstrand | FMU/Pump JFC800-1 819800-5 | 01R3122419-05 | Pratt & Whitney Canada PW150A | 2003-05-06 | current |
| United Technologies, Hamilton Sundstrand | FMU/Pump JFC800-1 819800-3 | 3122419-05 | Pratt & Whitney Canada PW150A | 2001-11-25 | current |
| United Technologies, Hamilton Sundstrand | FMU/Pump JFC800-1 819800-2 | 3122419-04 | Pratt & Whitney Canada PW150A | 2000-11-05 | current |
| United Technologies, Hamilton Sundstrand | FMU/Pump JFC800-1 819800-1 | Pratt & Whitney Canada 3122419-02 | Pratt & Whitney PW150A | 1999-04-01 | 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.