The U.S. aircraft register, updated daily
Parts

Incremental Transport

No failure report names the incremental transport. 2 FAA approvals let 1 company make a replacement incremental transport, Teledyne Controls 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 incremental transport and sell it as an approved part for the models named. These are the companies holding such approvals for a incremental transport:

MakerPartReplacesFitsGrantedStatus
Teledyne ControlsIncremental Transport 22225422222542Lockheed L-1011-385-12016-01-03current
Teledyne ControlsIncremental Transport 22225432222543Lockheed L-1011-385-12016-01-03current

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.