The U.S. aircraft register, updated daily
Parts

Mandrell

No failure report names the mandrell. 2 FAA approvals let 1 company make a replacement mandrell, True Lock LLC holding the most (2).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Cirrus SR22 (2), Cirrus SR20 (2).

MakerPartReplacesFitsGrantedStatus
True Lock LLCMandrell APV-SA2-1Modification PartCirrus Design Corporation SR20, SR22, SR22T2010-06-14current
True Lock LLCMandrell APV-SA2-1BModification PartCirrus Design Corporation SR20, SR22, SR22T2010-06-14current

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.