The U.S. aircraft register, updated daily
Parts

Collective Pull

No failure report names the collective pull. 1 FAA approvals let 1 company make a replacement collective pull, Helitrak, INC. holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

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

For these models most: Robinson R44 (1).

MakerPartReplacesFitsGrantedStatus
Helitrak, INC.Collective Pull Down (CPD) Installation, R44 100139Modification PartRobinson R44, R44 II2017-10-15current

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.