Metal
No failure report names the metal. 4 FAA approvals let 2 companies make a replacement metal, Gm Nameplate holding the most (3).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a metal and sell it as an approved part for the models named. These are the companies holding such approvals for a metal:
For these models most: Boeing 767 (2), Boeing 707 (2), Boeing 747 (1), Boeing 737 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Gm Nameplate | METAL BAC27CCT2 | BAC27CCT2 | Boeing 707 Series | 2006-02-06 | current |
| Gm Nameplate | METAL BAC27CCT3 | BAC27CCT3 | Boeing 707 Series | 2006-02-06 | current |
| Gm Nameplate | METAL - CAL BAC27TCT0006 | BAC27TCT0006 | Boeing 767 Series | 2006-01-27 | current |
| Korry Electronics CO | Metal 718 | Boeing 718 | Boeing 737-200, 747-200, 767-200 | 1995-08-15 | 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.