The U.S. aircraft register, updated daily
Parts

Fin Cap

No failure report names the fin cap. 2 FAA approvals let 2 companies make a replacement fin cap, Texas Aero Plastics 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 fin cap and sell it as an approved part for the models named. These are the companies holding such approvals for a fin cap:

For these models most: Piper PA-28 Cherokee, Warrior, Archer and Arrow (1), Cessna 172 Skyhawk (1).

MakerPartReplacesFitsGrantedStatus
Plane Plastics LTDFin Cap K0531033-10351033-1Cessna 172M, 172N2012-02-21current
Texas Aero PlasticsFin Cap 60-27Piper Aircraft 99035-03Piper PA-28-140, -180, -2351997-06-16current

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.