Top Mounted
No failure report names the top mounted. 2 FAA approvals let 2 companies make a replacement top mounted, Tecom Industries 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 top mounted and sell it as an approved part for the models named. These are the companies holding such approvals for a top mounted:
For these models most: Boeing 737 (1), Airbus A320 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Panasonic Avionics Corporation | Top Mounted PCU RD-KA8503-02 | RD-KA8503-02 | Airbus A320-214 | 2015-04-19 | current |
| Tecom Industries INC | T-4000 Top Mounted Antenna 817599-3 | Modification Part | Boeing 737-300 | 1997-12-17 | 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.