The U.S. aircraft register, updated daily
Parts

Shelf Mt

No failure report names the shelf mt. 2 FAA approvals let 1 company make a replacement shelf mt, United Beechcraft INC holding the most (2).

Approved replacement parts 2 parts manufacturer approvals

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

MakerPartReplacesFitsGrantedStatus
United Beechcraft INCLeft Shelf Mt Assembly 128-340024-4Modification PartBeech Raytheon) (400A1995-08-14current
United Beechcraft INCRight Shelf Mt Assembly 128-340024-5Modification PartBeech Raytheon) (400A1995-08-14current

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.