Top Ng
No failure report names the top ng. 1 FAA approvals let 1 company make a replacement top ng, Avionics Support Group, INC. holding the most (1).
Approved replacement parts 1 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a top ng and sell it as an approved part for the models named. These are the companies holding such approvals for a top ng:
For these models most: Boeing 737 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Avionics Support Group, INC. | Top Kit – B737-NG Data Link 2817-2327-500 | Modification Part | The Boeing Company 737-600/-700/-800/-900 Series | 2023-07-18 | 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.