The U.S. aircraft register, updated daily
Parts

Ati Engine

No failure report names the ati engine. 2 FAA approvals let 1 company make a replacement ati engine, Ontic Engineering & Manufacturing INC 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 ati engine and sell it as an approved part for the models named. These are the companies holding such approvals for a ati engine:

MakerPartReplacesFitsGrantedStatus
Ontic Engineering & Manufacturing INC3 ATI ENGINE DISPLAY SYS-EDS 80-5125-2-225W881012-001Gulfstream SPX/1002020-09-09current
Ontic Engineering & Manufacturing INC3 ATI ENGINE DISPLAY SYS-EDS 80-5125-3-325W881012-003Gulfstream SPX/1002020-09-09current

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.