The U.S. aircraft register, updated daily
Parts

Compenent

No failure report names the compenent. 1 FAA approvals let 1 company make a replacement compenent, Hamilton Standard Commercial, Aircraft Electronics 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 compenent and sell it as an approved part for the models named. These are the companies holding such approvals for a compenent:

MakerPartReplacesFitsGrantedStatus
Hamilton Standard Commercial, Aircraft Electronics INCCompenent 811180-4-004Pratt & Whitney 3118888-04Pratt & Whitney PW119B1995-07-30current

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.