Trim Unit
0 failure reports named the trim unit in the last ten years, 1 since 1999. 1 FAA approvals let 1 company make a replacement trim unit, Smiths Industries/Aerospace holding the most (1).
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1999 | 1 |
Approved replacement parts 1 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a trim unit and sell it as an approved part for the models named. These are the companies holding such approvals for a trim unit:
For these models most: Boeing 737 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Smiths Industries/Aerospace | Trim Unit 4215-01 | Boeing 10-61219-113 | Boeing 737-300, -400, -500 series | 1992-11-01 | 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.