Coupling Thermal
No failure report names the coupling thermal. 5 FAA approvals let 3 companies make a replacement coupling thermal, Avox Systems INC (Formerly Scott Aviation) holding the most (3).
Approved replacement parts 5 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a coupling thermal and sell it as an approved part for the models named. These are the companies holding such approvals for a coupling thermal:
For these models most: Boeing 747 (2), Boeing 787 Dreamliner (1), Boeing 757 (1), Boeing 737 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Avox Systems INC (Formerly Scott Aviation) | Coupling Assembly Thermal Compensator 801321-14 | Boeing P/N 801321-14 | Boeing 787-8 | 2011-11-14 | current |
| Avox Systems INC (Formerly Scott Aviation) | Coupling Assembly-Thermal Compensator 801321-07 | 801321-07 | Boeing 737-300 Series, 737-400 Series,... | 2004-11-08 | current |
| Avox Systems INC (Formerly Scott Aviation) | Coupling Assembly-Thermal Compensator 801321-07 | 801321-07 | Boeing 757-200 Series, 757-200CB Series,... | 2004-11-08 | current |
| Scott Aviation (Now Avox Systems, INC.) | Coupling Assembly Thermal Compensator 801321-00, -01, -02, -03,... | Boeing 747-100, -100B, -200B | 1992-08-13 | current | |
| Scott Aviation | Coupling Assembly Thermal Compensator 801321-00, -01, -02, -03,... | Boeing 747-100, -100B, -200B | 1992-08-13 | 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.