Groundfault Transformer
No failure report names the groundfault transformer. 2 FAA approvals let 2 companies make a replacement groundfault transformer, Avionic Instruments 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 groundfault transformer and sell it as an approved part for the models named. These are the companies holding such approvals for a groundfault transformer:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Avionic Instruments INC | Groundfault (Current) Transformer CTSG700 | TC Holders P/N GC66 | Hafei Aviation... HAIC) (Model Y12 IV and Model Y12E... | 2010-02-16 | current |
| Aircraft Parts CORP | Groundfault (current) Transformer CTSG700 | GC66 | Harbin Y12 | 2002-06-06 | 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.