Single Collins
No failure report names the single collins. 2 FAA approvals let 2 companies make a replacement single collins, Tramco 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 single collins and sell it as an approved part for the models named. These are the companies holding such approvals for a single collins:
For these models most: Mcdonnell Douglas DC-9 (1), Douglas DC-9 (1), Boeing 737 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Timco Aerosystems | Single Collins TPR 720 Mode S Transponder MDL 992-2603-001 | Modification Part | McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 | 1999-09-30 | current |
| Tramco INC | Single Collins Weather Radar WXR-700 System Tramco Dwg No. 81-035 | Modification Part | Boeing 737-2H6 | 1991-09-23 | 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.