The U.S. aircraft register, updated daily
Parts

Cabin Observer

No failure report names the cabin observer. 1 FAA approvals let 1 company make a replacement cabin observer, Sierra Nevada CORP (Hgr) 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 cabin observer and sell it as an approved part for the models named. These are the companies holding such approvals for a cabin observer:

For these models most: Dehavilland DHC-7 (1).

MakerPartReplacesFitsGrantedStatus
Sierra Nevada CORP (Hgr)Cabin Observer Jump Seat Installation DL94-112FAAModification PartDeHavilland DHC-7-1022021-10-28current

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.