The U.S. aircraft register, updated daily
Parts

Torque Signal

No failure report names the torque signal. 2 FAA approvals let 1 company make a replacement torque signal, Benz Airborne Systems 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 torque signal and sell it as an approved part for the models named. These are the companies holding such approvals for a torque signal:

For these models most: Bell 412 (2), Bell 212 (2).

MakerPartReplacesFitsGrantedStatus
Benz Airborne SystemsTorque Signal Converter 201-0001Modification PartBell Helicopter Textron 212, 4122016-02-01current
Benz Airborne SystemsTorque Signal Converter 201-0001Modification PartBell Helicopter Textron 212, 4122013-03-31current

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.