Voltage Harmonic
No failure report names the voltage harmonic. 2 FAA approvals let 2 companies make a replacement voltage harmonic, Avtech Tyee 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 voltage harmonic and sell it as an approved part for the models named. These are the companies holding such approvals for a voltage harmonic:
For these models most: Boeing 767 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Avtech Tyee INC | Voltage Harmonic Filter 1777-1-3 | S281U101-2 | Boeing 767-300 Series | 2012-05-01 | current |
| Avtech Corporation | Voltage Harmonic Filter 1777-1-3 | Boeing S281U101-2 | Boeing 767-300 | 1997-07-28 | 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.