The U.S. aircraft register, updated daily
Parts

Firing

No failure report names the firing. 1 FAA approvals let 1 company make a replacement firing, Knots 2U LTD 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 firing and sell it as an approved part for the models named. These are the companies holding such approvals for a firing:

For these models most: Rockwell International 112 (1), Commander Aircraft Co 114 (1).

MakerPartReplacesFitsGrantedStatus
Knots 2U LTDFiring, Elevator Tab Left K445000-1445000-1Commander Aircraft... 112B, 112TC, 112TCA2018-06-04current

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.