The U.S. aircraft register, updated daily
Parts

Cap Wing

No failure report names the cap wing. 3 FAA approvals let 2 companies make a replacement cap wing, Taylorcraft Aircraft CORP holding the most (2).

Approved replacement parts 3 parts manufacturer approvals

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

For these models most: Taylorcraft F21 (1), Taylorcraft BCS12 (1), Taylorcraft BC12 BC-12D (1), Taylorcraft Aviation Corp F19 (1), Taylorcraft Aviation Corp 19 (1).

MakerPartReplacesFitsGrantedStatus
Yesteryear Aviation INCCap-Wing Center Section Front Spar Upper YA49-1310549-13105Rockwell... BC-1A, AT-6, (SNJ-2) (also known as...2010-03-23current
Taylorcraft Aircraft CORPCap Assembly Wing Tank B12-A37B12-A37Taylorcraft BC12-65, BCS12-65, BC12-D1993-12-01current
Taylorcraft Aircraft CORPCap Assembly Wing Tank B12-A37-6B12-A37-6Taylorcraft F21A, F21B all F22 models1993-12-01current

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.