Oxygen Breathing
No failure report names the oxygen breathing. 9 FAA approvals let 3 companies make a replacement oxygen breathing, Scott Aviation (Now Avox Systems, INC.) holding the most (4).
Approved replacement parts 9 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a oxygen breathing and sell it as an approved part for the models named. These are the companies holding such approvals for a oxygen breathing:
For these models most: Dehavilland DHC-8 (4), Dehavilland DHC-7 (2), Mcdonnell Douglas DC-9 (1), Mcdonnell Douglas Aircraft Co MD-88 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Litton Systems INC, Life Support Division | Oxygen Breathing Regulator 29261-7E-A1 | Douglas 7643694-505 | McDonnell Douglas DC-9-31, -32, -32F | 1997-09-23 | current |
| Scott Aviation (Now Avox Systems, INC.) | Oxygen Breathing Unit 5500B6C-BF25A | deHavilland DHC-8 100 Series | 1991-01-24 | current | |
| Scott Aviation (Now Avox Systems, INC.) | Oxygen Breathing Unit 5500BIA-BF23B | deHavilland DHC-5 | 1991-01-24 | current | |
| Scott Aviation (Now Avox Systems, INC.) | Oxygen Breathing Unit 5500CIB-F21 | deHavilland DHC-7 100 Series | 1991-01-24 | current | |
| Scott Aviation (Now Avox Systems, INC.) | Oxygen Breathing Equipment 56009CIA-XOK | deHavilland DHC-8 100 Series | 1991-01-24 | current | |
| Scott Aviation | Oxygen Breathing Unit 5500CIB-F21 | deHavilland DHC-7 100 Series | 1991-01-24 | current | |
| Scott Aviation | Oxygen Breathing Equipment 56009CIA-XOK | deHavilland DHC-8 100 Series | 1991-01-24 | current | |
| Scott Aviation | Oxygen Breathing Unit 5500-BIA-BF23B | deHavilland DHC-5 | 1991-01-24 | current | |
| Scott Aviation | Oxygen Breathing Unit 5500B6C-BF25A | deHavilland DHC-8 100 Series | 1991-01-24 | 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.