The U.S. aircraft register, updated daily
Parts

Regulaotr Parallel

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

For these models most: Piper PA-39 Twin Comanche C/R (1), Piper PA-23 Apache and Aztec (1).

MakerPartReplacesFitsGrantedStatus
Lamar INCRegulaotr 14V Parallel Oper'n B-0288-1550 393Piper PA-23-235/-250 PA-30, PA-39 PA-34-200T/-220T1992-12-31current

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.