Ac Bus
No failure report names the ac bus. 7 FAA approvals let 3 companies make a replacement ac bus, Hamilton Sundstrand Corporation holding the most (4).
Approved replacement parts 7 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a ac bus and sell it as an approved part for the models named. These are the companies holding such approvals for a ac bus:
For these models most: Mcdonnell Douglas DC-9 (7), Mcdonnell Douglas Aircraft Co MD-88 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Hamilton Sundstrand Corporation | AC Bus Control Panel 947F946-3 | McDonnell Douglas 947F946-3 | McDonnell Douglas DC-9-11, -12, -13 | 1996-04-24 | current |
| Hamilton Sundstrand Corporation | AC Bus Control Panel 914F565-( ) | Douglas 914F565-( ) | McDonnell Douglas DC-9, Series 11, 12 | 1996-01-11 | current |
| Hamilton Sundstrand Corporation | AC Bus Control Panel 947F946-2 | Douglas 947F946-2 | McDonnell Douglas DC-9-80 Series | 1996-01-11 | current |
| Hamilton Sundstrand Corporation | AC Bus Control Panel 947F946-3 Dwg. 947F946... | McDonnell Douglas P/N 947F946-3 | McDonnell Douglas DC-9 Series-11 | 1995-03-26 | current |
| Sundstrand Electric Power Sys | AC Bus Control Panel 947F946-3 | McDonnell Douglas 947F946-3 | McDonnell Douglas DC-9-11, -12, -13 | 1993-12-16 | current |
| Westinghouse Electric CORP, Electrical Systems Div | AC Bus Control Panel 947F946-3 | McDonnell Douglas 947F946-3 | McDonnell Douglas DC-9-11, -12, -13 | 1992-03-10 | current |
| Westinghouse Electric CORP, Electrical Systems Div | AC Bus Control Panel 947F946-2 | Original Design | McDonnell Douglas DC-9-80 Series | 1991-09-10 | 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.