Pressure Dump
No failure report names the pressure dump. 3 FAA approvals let 3 companies make a replacement pressure dump, Zevco INC 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 pressure dump and sell it as an approved part for the models named. These are the companies holding such approvals for a pressure dump:
For these models most: Dornier Luftfahrt Gmbh 328 (3).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Circor Aerospace, INC. | Pressure Dump & Relief Valve ZHV29-2 | ZHV29-2 | Dornier 328-100 | 2015-05-03 | current |
| Circle Seal Controls INC | Pressure Dump & Relief Valve ZHV 29-1 | Fairchild/Dornier ZHV 29-1 | Dornier-Werke 328-100 | 1997-02-04 | current |
| Zevco INC | Pressure Dump and Relief Valve ZHV 29-1 | Dornier ZHV 29-1 | Dornier-Werke 328-100 | 1994-10-31 | 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.