Paralleling Relay
No failure report names the paralleling relay. 3 FAA approvals let 1 company make a replacement paralleling relay, Zeftronics holding the most (3).
Approved replacement parts 3 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a paralleling relay and sell it as an approved part for the models named. These are the companies holding such approvals for a paralleling relay:
For these models most: Piper PA-39 Twin Comanche C/R (2), Piper PA-30 Twin Comanche (2), Piper PA-23 Apache and Aztec (2), Cessna 500 Citation I (1), Cessna 320 (1), Cessna 310 (1), Beechcraft E95 (1), Beechcraft D95 (1), Beechcraft B95 (1), Beechcraft B-55 (1), Beechcraft 95 Travel Air and Baron 55 (1), Beechcraft 58 Baron (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Zeftronics | Paralleling Relay EQ2500 | Modification Part | Beech Raytheon) (95, B95, B95A | 1993-05-10 | current |
| Zeftronics | Paralleling Relay EQ1500 | Modification Part | Piper PA-23-150, -160, -235 | 1993-05-10 | current |
| Zeftronics | Paralleling Relay EQ1500 | Piper Aircraft P/N 450-386, Delco-Remy P/N 1116887 | Piper PA23-150, -160, -235 | 1992-10-12 | 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.