The U.S. aircraft register, updated daily
Parts

Unequipped Blade

No failure report names the unequipped blade. 1 FAA approvals let 1 company make a replacement unequipped blade, Aerometals 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 unequipped blade and sell it as an approved part for the models named. These are the companies holding such approvals for a unequipped blade:

For these models most: Airbus Helicopters EC 130 now H130 (1), Airbus Helicopters AS355 TwinStar (1), Airbus Helicopters AS350 AStar (Écureuil), now H125 (1).

MakerPartReplacesFitsGrantedStatus
AerometalsUnequipped Blade Pin AM350A31-3020-20350A31-3020-20Airbus Helicopters AS350B/B1/B2/, B3/BA/D, EC130B4/T22020-09-10current

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.