The U.S. aircraft register, updated daily
Parts

Shaft Ay

No failure report names the shaft ay. 2 FAA approvals let 2 companies make a replacement shaft ay, Mcclain International INC, A Heico Aerospace Company holding the most (1).

Approved replacement parts 2 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a shaft ay and sell it as an approved part for the models named. These are the companies holding such approvals for a shaft ay:

For these models most: Boeing 757 (1), Boeing 747 (1), Boeing 737 (1), Airbus A321 (1), Airbus A319 (1).

MakerPartReplacesFitsGrantedStatus
Mcclain International INC, A Heico Aerospace CompanyShaft Ay, Table M863478-401Zodiac Aerospace P/N 863478-401The Boeing Company 737-800 Series, 757-200...2018-02-26current
Lucas Aerospace Cargo SystemShaft AY 65B63805-6LACSM 65B63805-6Boeing 747-200, 3001997-05-19current

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.