The U.S. aircraft register, updated daily
Parts

Liner Imp

No failure report names the liner imp. 1 FAA approvals let 1 company make a replacement liner imp, Sun Air Parts 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 liner imp and sell it as an approved part for the models named. These are the companies holding such approvals for a liner imp:

MakerPartReplacesFitsGrantedStatus
Sun Air PartsLiner Imp. Shaft Rear BR'G SAP34753Pratt & Whitney 34753Pratt & Whitney R-1340 Wasp Series S3H1, S1H1, S1H2 and S3H1G1997-08-27current

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.