The U.S. aircraft register, updated daily
Parts

Collective Grip

No failure report names the collective grip. 3 FAA approvals let 1 company make a replacement collective grip, Otto Controls, Division of Otto Engr holding the most (3).

Approved replacement parts 3 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a collective grip and sell it as an approved part for the models named. These are the companies holding such approvals for a collective grip:

For these models most: Sikorsky S-76 (2), Airbus Helicopters EC-135 now H135 (1).

MakerPartReplacesFitsGrantedStatus
Otto Controls, Division of Otto EngrCollective Grip Head CoPilot HLX G2-0231G2-0231Airbus Helicopters... EC1352018-06-12current
Otto Controls, Division of Otto EngrCOLLECTIVE GRIP G2-0172Sikorsky P/N 76400-71820-102Sikorsky S-76D2013-05-07current
Otto Controls, Division of Otto EngrCOLLECTIVE GRIP G2-0139Sikorsky P/N 76400-71820-101Sikorsky S-76D2013-05-07current

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.