Electron Tube
No failure report names the electron tube. 7 FAA approvals let 1 company make a replacement electron tube, Mpd INC holding the most (7).
Approved replacement parts 7 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a electron tube and sell it as an approved part for the models named. These are the companies holding such approvals for a electron tube:
For these models most: Boeing 747 (5), Boeing 737 (2), Short Bros SD3 (1), Boeing 727 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Mpd INC | Electron Tube P15371AL | King Radio P/N 021-0031-00 | Boeing 737-251, -2M7, 737-200 | 2002-03-04 | current |
| Mpd INC | Electron Tube P7815AL | Rockwell Collins P/N 256-0152-00 | Boeing 747-251F, -219F, -251B | 2002-03-04 | current |
| Mpd INC | Electron Tube P15371AL | King Radio P/N 021-0031-00 | Boeing 747-251F, -219F, -251B | 2002-03-04 | current |
| Mpd INC | Electron Tube GE17701-3 | Rockwell Collins P/N 256-0176 | Boeing 747-151, -251F, -13S | 2002-03-04 | current |
| Mpd INC | Electron Tube GE18651-2 | Rockwell Collins P/N 256-0175 | Short Brothers SD3-60 | 2002-03-04 | current |
| Mpd INC | Electron Tube P7815AL | Rockwell Collins P/N 256-0152-0 | Boeing 727-200, -2S7, -2M7 | 2002-03-04 | current |
| Mpd INC | Electron Tube GE18651 | Rockwell Collins P/N 256-0175 | Boeing 747-151, -251F, -13S | 2002-03-04 | 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.