The U.S. aircraft register, updated daily
Parts

Steering Module

No failure report names the steering module. 1 FAA approvals let 1 company make a replacement steering module, Abex/Nwl Aerospace 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 steering module and sell it as an approved part for the models named. These are the companies holding such approvals for a steering module:

For these models most: Boeing 747 (1).

MakerPartReplacesFitsGrantedStatus
Abex/Nwl AerospaceSteering Module 77144-04Boeing 60B80044-4Boeing 7471993-10-25current

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.