FAA PMA replacements for
188537
2 approvals from 2 holders
Approved PMA parts
| PMA part number | Holder | Status | Supplement | Part name |
|---|---|---|---|---|
| SP188537 | Superior Air Parts Inc | Current | 1993-09-26 | Piston Ring |
| URS 188537 and oversizes | United Ring and Seal Inc | Current | 1992-05-18 | Piston Ring Dual Oil Control |

