Nut Check
No failure report names the nut check. 2 FAA approvals let 2 companies make a replacement nut check, Rotair Industries INC holding the most (1).
Approved replacement parts 2 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a nut check and sell it as an approved part for the models named. These are the companies holding such approvals for a nut check:
For these models most: Sikorsky S-61 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Rotair Industries INC | Nut Check R5165-20243-0, Dwg.... | S6165-20243-0 | Sikorsky S61A/DL/N/NM/R | 1997-04-01 | current |
| Connecticut Hydraulics INC | Nut-Check CM-45547 | Chandler Evans 45547 | Honeywell T53-13A, -13B, -17A | 1994-03-09 | 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.