The U.S. aircraft register, updated daily
Parts

Channel Relay

No failure report names the channel relay. 1 FAA approvals let 1 company make a replacement channel relay, Custom Control Concepts 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 channel relay and sell it as an approved part for the models named. These are the companies holding such approvals for a channel relay:

For these models most: Boeing 737 (1).

MakerPartReplacesFitsGrantedStatus
Custom Control Concepts INC6 Channel Relay LC Controller 020-0024-02020-0024-02Boeing 737-700IGW2009-10-12current

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.