The U.S. aircraft register, updated daily
Parts

Base Subassembly

No failure report names the base subassembly. 1 FAA approvals let 1 company make a replacement base subassembly, Turbine Kinetics INC, A Heico Aerospace Company 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 base subassembly and sell it as an approved part for the models named. These are the companies holding such approvals for a base subassembly:

For these models most: Boeing 767 (1).

MakerPartReplacesFitsGrantedStatus
Turbine Kinetics INC, A Heico Aerospace CompanyBase Subassembly 7N12181-1KT7N12181-1The Boeing Company 767-300F Series2026-07-28current

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.