The U.S. aircraft register, updated daily
Parts

Blade Folding

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

For these models most: Agusta A109 (1), Agusta Spa A119 (1).

MakerPartReplacesFitsGrantedStatus
Paravion Technology INCBlade folding Kit A109BF-100Modification PartAgusta A109 Series, A119 Series2009-01-29current

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.