The U.S. aircraft register, updated daily
Parts

Retract Stop

No failure report names the retract stop. 5 FAA approvals let 5 companies make a replacement retract stop, Wencor LLC holding the most (1).

Approved replacement parts 5 parts manufacturer approvals

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

For these models most: Bombardier CL-600 Challenger and CRJ (1).

MakerPartReplacesFitsGrantedStatus
Turbine Kinetics INC, A Heico Aerospace CompanyRetract Stop DEC39-253-501Honeywell P/N 3238329-51General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A32016-02-02current
Wencor LLCRetract Stop 3238329-51STAR3238329-51GENERAL ELECTRIC COMPANY CF6-80A, CF6-80A1, CF6-80A22014-09-02current
Quest Aviation Supply INCRetract Stop 3238329-51QAS3238329-51General Electric CF6-80C2A1, -80C2A2, -80C2A32013-04-15current
Dec Technologies INCRetract-Stop DEC39-253-501Honeywell P/N 3238329-51General Electric CF6-80C2A1, CF6-80C2A2, CF6-80C2A32005-12-12current
Swisturbine INCRetract Stop 3238470-51ST3238470-51Bombardier, Inc. CL600-2A12 (CL601), CL600-2B16 (CL601-3A)2004-09-21current

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.