The U.S. aircraft register, updated daily
Parts

System Compartment

No failure report names the system compartment. 1 FAA approvals let 1 company make a replacement system compartment, Whittaker Controls 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 system compartment and sell it as an approved part for the models named. These are the companies holding such approvals for a system compartment:

For these models most: Cessna 650 Citation III, VI and VII (1).

MakerPartReplacesFitsGrantedStatus
Whittaker Controls INCSystem Compartment Temperature Control 172295-29914130-11Cessna 6502003-05-15current

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.