Hourmeter Airspeed
No failure report names the hourmeter airspeed. 2 FAA approvals let 1 company make a replacement hourmeter airspeed, Kidde Aerospace holding the most (2).
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a hourmeter airspeed and sell it as an approved part for the models named. These are the companies holding such approvals for a hourmeter airspeed:
For these models most: Cessna UC-78 (2), Cessna T337 (2), Cessna T303 (2), Cessna T-50 (2), Cessna M337 (2), Cessna 411 (2), Cessna 404 (2), Cessna 402 (2), Cessna 401 (2), Cessna 337 Skymaster (2), Cessna 310 (2), Cessna 336 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Kidde Aerospace | Hourmeter Airspeed Switch Flow Restrictor AVAK-R1 | None-Modification Part | Cessna 336, 337, 337A (USAF-O2B) | 1998-01-07 | current |
| Kidde Aerospace | Hourmeter Airspeed Switch AS9300-603 | None-Modification Part | Cessna 337B, 337C, 337D | 1998-01-07 | 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.