Inst Switch
No failure report names the inst switch. 1 FAA approvals let 1 company make a replacement inst 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 inst switch and sell it as an approved part for the models named. These are the companies holding such approvals for a inst switch:
For these models most: Mcdonnell Douglas DC-9 (1), Mcdonnell Douglas DC-10 (1), Mcdonnell Douglas Aircraft Co MD-88 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Butler National Corporation | INST Switch Unit 001048-101 | 001048-101 | McDonnell Douglas DC-9 Series 81, 82, 83 | 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.