The U.S. aircraft register, updated daily
Parts

Tactical Common

No failure report names the tactical common. 1 FAA approvals let 1 company make a replacement tactical common, Sierra Nevada CORP (Hgr) 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 tactical common and sell it as an approved part for the models named. These are the companies holding such approvals for a tactical common:

For these models most: Dehavilland DHC-7 (1).

MakerPartReplacesFitsGrantedStatus
Sierra Nevada CORP (Hgr)Tactical Common Data LinkSystem (TCDL) 131200000DLModificationPartDeHavilland DHC-7-1022021-10-28current

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.