Union To
No failure report names the union to. 2 FAA approvals let 1 company make a replacement union to, Zee Systems INC holding the most (2).
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a union to and sell it as an approved part for the models named. These are the companies holding such approvals for a union to:
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Zee Systems INC | Union 37 to 45 SZ55-035-3 | British Aerospace 3201, 3201 | 1994-09-13 | current | |
| Zee Systems INC | Union 37 to 45 SZ55-035-3 | - | British Aerospace Jetstream 3201 | 1993-11-01 | 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.