The U.S. aircraft register, updated daily
Parts

Tach Signal

No failure report names the tach signal. 1 FAA approvals let 1 company make a replacement tach signal, Surefly Partners LTD 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 tach signal and sell it as an approved part for the models named. These are the companies holding such approvals for a tach signal:

For these models most: Siai-Marchetti F.260 (1), Champion 7 Citabria and Champ (1).

MakerPartReplacesFitsGrantedStatus
Surefly Partners LTDTach2 Signal Converter TACH2Modification PartAermacchi S.p.A F.260, F.260B F.260C F.260D F.260E...2020-09-07current

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.