Steel Coupler
No failure report names the steel coupler. 4 FAA approvals let 1 company make a replacement steel coupler, Brunner Machine Works, LLC. holding the most (4).
Approved replacement parts 4 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a steel coupler and sell it as an approved part for the models named. These are the companies holding such approvals for a steel coupler:
For these models most: Robinson R66 (2), Robinson R44 (2).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Brunner Machine Works, LLC. | Steel Coupler Female Side R44M-100-10 | R44M-100-10 | Robinson Helicopter Company R44, R44II | 2019-10-01 | current |
| Brunner Machine Works, LLC. | Steel Coupler Female Side R66M-100-12 | R66M-100-12 | Robinson Helicopter Company R66 | 2019-10-01 | current |
| Brunner Machine Works, LLC. | Steel Coupler Male Side R44M-100-11 | R44M-100-11 | Robinson Helicopter Company R44, R44II | 2019-10-01 | current |
| Brunner Machine Works, LLC. | Steel Coupler Male Side R66M-100-13 | R66M-100-13 | Robinson Helicopter Company R66 | 2019-10-01 | 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.