Psu Frame
No failure report names the psu frame. 2 FAA approvals let 2 companies make a replacement psu frame, Tramco INC holding the most (1).
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a psu frame and sell it as an approved part for the models named. These are the companies holding such approvals for a psu frame:
For these models most: Boeing 737 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Goodrich, Aviation Technical Services | PSU Frame Assembly D85-005 | D81-005 | Boeing 737-200 & 737-300 | 2001-05-31 | current |
| Tramco INC | PSU Frame Assemblies All parts listed on Tramco... | Boeing as shown on Document D85-004 dtd 4/29/85. | Boeing 737-200, 737-300 | 1991-09-23 | 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.