The U.S. aircraft register, updated daily
Parts

Rail Pc

No failure report names the rail pc. 1 FAA approvals let 1 company make a replacement rail pc, Roush Industries 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 rail pc and sell it as an approved part for the models named. These are the companies holding such approvals for a rail pc:

MakerPartReplacesFitsGrantedStatus
Roush Industries INCRail-3PC Oil Ring RA-620009-AModification PartRolls Royce/Packard V-1650-3, -7, -92011-03-21current

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.