The U.S. aircraft register, updated daily
Parts

Variable Bypass

No failure report names the variable bypass. 2 FAA approvals let 2 companies make a replacement variable bypass, Cablecraft Motion Controls, LLC holding the most (1).

Approved replacement parts 2 parts manufacturer approvals

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

MakerPartReplacesFitsGrantedStatus
Cablecraft Motion Controls, LLCVariable Bypass Valve Feedback Cable 580-290-0029226M67P02General Electric Company CF6-50A, CF6-50C, CF6-50E2017-01-10current
Cablecraft Motion Controls LLCVariable Bypass Valve Feedback Cable 580-290-0029226M67P02General Electric Company CF6 -50A, CF6 -50C, CF6 -50E2013-01-10current

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.