The U.S. aircraft register, updated daily
Parts

Port Engine

No failure report names the port engine. 1 FAA approvals let 1 company make a replacement port engine, Wall Colmonoy Corporation 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 port engine and sell it as an approved part for the models named. These are the companies holding such approvals for a port engine:

For these models most: Britten-Norman BN-2 (1).

MakerPartReplacesFitsGrantedStatus
Wall Colmonoy CorporationPort Engine Exhaust LS53-261Pilatus NB-53-H-261Pilatus Britten-Norman BN-2 Islander1992-02-05current

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.