Trans Duct
No failure report names the trans duct. 4 FAA approvals let 1 company make a replacement trans duct, Triumph Composite Systems INC holding the most (4).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a trans duct and sell it as an approved part for the models named. These are the companies holding such approvals for a trans duct:
For these models most: Boeing 747 (4).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Triumph Composite Systems INC | TRANS DUCT 214U5403-7 | 214U5403-7 | Boeing 747-400 SERIES, 747-400D SERIES | 2005-11-25 | current |
| Triumph Composite Systems INC | TRANS DUCT 214U5403-8 | 214U5403-8 | Boeing 747-400 SERIES, 747-400D SERIES | 2005-11-25 | current |
| Triumph Composite Systems INC | TRANS DUCT 214U5403-10 | 214U5403-10 | Boeing 747-400 SERIES | 2005-11-25 | current |
| Triumph Composite Systems INC | TRANS DUCT 214U5403-9 | 214U5403-9 | Boeing 747-400 SERIES | 2005-11-25 | 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.