Regulator Variable
No failure report names the regulator variable. 4 FAA approvals let 2 companies make a replacement regulator variable, Scott Aviation (Now Avox Systems, INC.) holding the most (2).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a regulator variable and sell it as an approved part for the models named. These are the companies holding such approvals for a regulator variable:
For these models most: Mcdonnell Douglas DC-9 (2), Boeing 747 (2), Boeing 737 (2), Boeing 727 (2), Boeing 707 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Scott Aviation (Now Avox Systems, INC.) | Regulator Assembly-Variable Pressure 800480-02 | 800480-02 | McDonnell Douglas DC-9-82, -83, -87 | 2001-02-01 | current |
| Scott Aviation | Regulator Assembly-Variable Pressure 800480-02 | 800480-02 | McDonnell Douglas DC-9-82, -83, -87 | 2001-02-01 | current |
| Scott Aviation (Now Avox Systems, INC.) | Regulator Assembly Variable Pressure 800480-00 | Boeing 707-100, -200, -100B | 1992-08-13 | current | |
| Scott Aviation | Regulator Assembly Variable Pressure 800480-00 | Boeing 707-100, -200, -100B | 1992-08-13 | 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.