Mach Airspeed
No failure report names the mach airspeed. 5 FAA approvals let 2 companies make a replacement mach airspeed, Gs Rasmussen and Associates INC holding the most (3).
Approved replacement parts 5 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a mach airspeed and sell it as an approved part for the models named. These are the companies holding such approvals for a mach airspeed:
For these models most: Douglas DC-8 (3), Boeing 747 (1), Boeing 737 (1), Boeing 727 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Smiths Industries/Aerospace | Mach Airspeed Indicator 2083-08-1 | Boeing 10-61818-151 | Boeing 737-200 Series, 727-200 Series | 1999-05-04 | current |
| Smiths Industries/Aerospace | Mach Airspeed Indicator 2082-11-1 | 60B40134-10 | Boeing 747-200, -300 | 1997-04-06 | current |
| Gs Rasmussen and Associates INC | Mach Airspeed Indicator Type No 105A 10501 thru 10507 | Modification Part | McDonnell Douglas DC-8-62 & -63 | 1994-10-06 | current |
| Gs Rasmussen and Associates INC | Mach Airspeed Indicator Type No 108K 10801 | Modification Part | McDonnell Douglas DC-8-62 & -63 | 1994-10-06 | current |
| Gs Rasmussen and Associates INC | Mach Airspeed Warning Switch Type No 303A 3031 thru 3034 | Modification Part | McDonnell Douglas DC-8-62 & -63 | 1994-10-06 | 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.