Ambient Pressure
No failure report names the ambient pressure. 3 FAA approvals let 3 companies make a replacement ambient pressure, Aerosonic LLC holding the most (1).
Approved replacement parts 3 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a ambient pressure and sell it as an approved part for the models named. These are the companies holding such approvals for a ambient pressure:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Aerosonic LLC | Ambient Pressure Static Port, Non-Heated, Nickel Plate ST28NRA | Airbus P/N ST28NRA | Airbus A310-304 Series | 2015-04-13 | current |
| Aerocontrolex Group INC | Ambient Pressure Port ST28NRA | Airbus P/N ST28NRA | Airbus A310-304 | 2013-05-29 | current |
| Aero-Instruments Company LLC | Ambient Pressure Port ST28NRA | Airbus Industries ST28NRA | Airbus A310-304 | 1992-08-19 | 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.