Tdr Transponder
No failure report names the tdr transponder. 10 FAA approvals let 4 companies make a replacement tdr transponder, Cpi Eimac Division holding the most (5).
Approved replacement parts 10 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a tdr transponder and sell it as an approved part for the models named. These are the companies holding such approvals for a tdr transponder:
For these models most: Mitsubishi MU-2 (2), Embraer EMB-120 (2), Learjet 60 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Cpi/Mpp Division | TDR-90 Transponder Y-825 | 256-0190-020 | Gulfstream Model G-IV) Embraer (EMB-120) Shorts... | 2019-10-27 | current |
| Cpi/Mpp Division | TDR-90 Transponder Y-503 | 256-0190-010 | Embraer EMB-120) Shorts Brothers Limited (SD... | 2019-10-27 | current |
| Cpi Eimac Division | TDR-90 transponder Y-503 | 256-0190-010 | Gulfstream Model G-IV | 2018-04-11 | current |
| Cpi Eimac Division | TDR-90 Transponder Y-503 | 256-0190-010 | Embraer EMB-120) Shorts Brothers Limited (SD... | 2018-04-11 | current |
| Cpi Eimac Division | TDR-90 Transponder Y-825 | 256-0190-020 | Gulfstream Model G-IV) Embraer (EMB-120) Shorts... | 2018-04-11 | current |
| Cpi Eimac Division | TDR-90 Transponder Y-825 | 256-0190-020 | Gulfstream MODEL GIV) Embraer Empresa... | 2006-05-24 | current |
| Cpi Eimac Division | TDR-90 Transponder Y-503 | 256-0190-010 | Gulfstream MODEL GIV) Embraer Empresa... | 2006-05-24 | current |
| Learjet INC | M60 TDR-94D Transponder-Elementary Surveillance Upgrade M100444ICT | Modification Part | Learjet 60 | 2004-06-03 | current |
| Cpi/Eimac Division | TDR-90 Transponder Y-503 | Rockwell International 256-0190-010 | Beech Raytheon) (King Air A100, Citation... | 1997-09-30 | current |
| Cpi/Eimac Division | TDR-90 Transponder Y-825 | Rockwell International 256-0190-020 | Beech Raytheon) (King Air A100, Citation... | 1997-09-30 | 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.