Switoh Pressure
No failure report names the switoh pressure. 3 FAA approvals let 1 company make a replacement switoh pressure, Hydra-Electric CO 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 switoh pressure and sell it as an approved part for the models named. These are the companies holding such approvals for a switoh pressure:
For these models most: Mcdonnell Douglas DC-9 (1), Mcdonnell Douglas DC-10 (1), Douglas DC-8 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Hydra-Electric CO | Switoh Pressure Differential 40086, 40102, 40171,... | - | McDonnell Douglas DC-8 Series 11, 12, 21 | 1974-01-21 | current |
| Hydra-Electric CO | Switoh -Pressure Differential 75058 | - | McDonnell Douglas DC-9 Series 11, 12, 13 | 1974-01-21 | current |
| Hydra-Electric CO | Switoh -Pressure & Flow 83114-( ) Series | - | McDonnell Douglas DC-10 Series 40 | 1974-01-21 | 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.