Signal Switch
No failure report names the signal switch. 1 FAA approvals let 1 company make a replacement signal switch, Butler National Corporation holding the most (1).
Approved replacement parts 1 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a signal switch and sell it as an approved part for the models named. These are the companies holding such approvals for a signal switch:
For these models most: Mcdonnell Douglas DC-9 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Butler National Corporation | Signal Switch Unit 600905-101 | 600905-101 | McDonnell Douglas DC-9, Series 11, 12 | 2003-02-23 | 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.