The U.S. aircraft register, updated daily
Parts

Solenoid Signal

No failure report names the solenoid signal. 3 FAA approvals let 3 companies make a replacement solenoid signal, Fluid Regulators CORP holding the most (1).

Approved replacement parts 3 parts manufacturer approvals

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

MakerPartReplacesFitsGrantedStatus
Aero Fluid ProductsSolenoid Signal Air Valve AH2467-02General Electric 1797M32P01General Electric CF6-80C2B1F, -80C2B1F1, -80C2B2F2013-07-23current
Aerocontrolex Group, Transdigm INCSolenoid Signal Air Valve AH2467-02General Electric 1797M32P01General Electric CF6-80C2B1F, -80C2B1F1, -80C2B2F2006-02-22current
Fluid Regulators CORPSolenoid Signal Air Valve AH2467-02G.E. 1797M32P01General Electric CF6-80C2B1F, B1F1, B2F1993-01-28current

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.