The U.S. aircraft register, updated daily
Parts

Emergency Bus

No failure report names the emergency bus. 1 FAA approvals let 1 company make a replacement emergency bus, United Beechcraft INC 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 emergency bus and sell it as an approved part for the models named. These are the companies holding such approvals for a emergency bus:

For these models most: Cessna 500 Citation I (1).

MakerPartReplacesFitsGrantedStatus
United Beechcraft INCEmergency Bus TAEB0005Modification PartCessna 500 S/N 0214 thru 03491992-09-03current

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.