Balanced Armature
No failure report names the balanced armature. 10 FAA approvals let 1 company make a replacement balanced armature, Leach International, North America holding the most (10).
Approved replacement parts 10 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a balanced armature and sell it as an approved part for the models named. These are the companies holding such approvals for a balanced armature:
For these models most: Mcdonnell Douglas MD-11 (9), Mcdonnell Douglas DC-10 (7), Mcdonnell Douglas DC-9 (6), Mcdonnell Douglas Aircraft Co MD-88 (6).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Leach International, North America | Balanced Armature Relay 9274-8681 | 9274-8681 | McDonnell Douglas DC-9-81 (MD-81), DC-9-82 (MD-82),... | 2004-06-29 | current |
| Leach International, North America | Balanced Armature Relay 9324-8873 | McDonnell Douglas 9324-8873 | McDonnell Douglas MD-11, MD-11F, MD-11C | 1996-07-14 | current |
| Leach International, North America | Balanced Armature Relay 9227-4473 | McDonnell Douglas 9227-4473 | McDonnell Douglas DC-9-11, -12, -13 | 1996-07-14 | current |
| Leach International, North America | Balanced Armature Relay 9227-4517 | McDonnell Douglas 9227-4517 | McDonnell Douglas DC-9-11, -12, -13 | 1996-07-14 | current |
| Leach International, North America | Balanced Armature Relay 9274-3643 | McDonnell Douglas 9274-3643 | McDonnell Douglas DC-9-11, -12, -13 | 1996-07-14 | current |
| Leach International, North America | Balanced Armature Relay 9324-8266 | McDonnell Douglas 9324-8266 | McDonnell Douglas DC-10-10, -10CF, -15 | 1996-07-14 | current |
| Leach International, North America | Balanced Armature Relay 9274-8730 | McDonnell Douglas 9274-8730 | McDonnell Douglas DC-9-81, -82, -83 | 1996-07-14 | current |
| Leach International, North America | Balanced Armature Relay 9274-8681 | McDonnell Douglas 9274-8681 | McDonnell Douglas DC-10-10, -10CF, -15 | 1996-07-14 | current |
| Leach International, North America | Balanced Armature Relay 9227-10127 | McDonnell Douglas 9227-10127 | McDonnell Douglas DC-10-10, -10CF, -15 | 1996-07-14 | current |
| Leach International, North America | Balanced Armature Relay 9274-3642 | McDonnell Douglas 9274-3642 | McDonnell Douglas DC-9-11, -12, -13 | 1996-07-14 | 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.