The U.S. aircraft register, updated daily
Parts

Half Plate

No failure report names the half plate. 1 FAA approvals let 1 company make a replacement half plate, Seginus Aerospace LLC 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 half plate and sell it as an approved part for the models named. These are the companies holding such approvals for a half plate:

For these models most: Airbus Helicopters EC 130 now H130 (1), Airbus Helicopters AS350 AStar (Écureuil), now H125 (1).

MakerPartReplacesFitsGrantedStatus
Seginus Aerospace LLCHalf Plate SA350A58155401350A58155401Airbus Helicopters AS350D, AS350B, AS350B12024-06-06current

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.