The U.S. aircraft register, updated daily
Parts

Single Retractable

No failure report names the single retractable. 1 FAA approvals let 1 company make a replacement single retractable, Air Methods CORP International 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 single retractable and sell it as an approved part for the models named. These are the companies holding such approvals for a single retractable:

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

MakerPartReplacesFitsGrantedStatus
Air Methods CORP InternationalSingle Retractable / Controllable Searchlight MDL 741-9124Modification PartsEurocopter France AS 350 B2 B32009-03-10current

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.