The U.S. aircraft register, updated daily
Parts

Cabin Power

No failure report names the cabin power. 4 FAA approvals let 4 companies make a replacement cabin power, Northrop Grumman holding the most (1).

Approved replacement parts 4 parts manufacturer approvals

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

For these models most: Learjet 31 (1), Iai Ltd GULFSTREAM G280 (1), Boeing 737 (1), Beechcraft B300 King Air 350 (1).

MakerPartReplacesFitsGrantedStatus
Gulfstream Aerospace CorporationCabin Power Bus Controller CPBC-01-001Modification PartGulfstream Aerospace, L.P. Gulfstream G2802014-06-30current
Aircraft Systems and ManufacturingCabin Power Switching Mod Installation Kit K5710-0000-00Modification PartBoeing 737-700 Series2014-06-11current
Northrop GrummanCabin Power Bus System Parts Contained in...Modification PartsRaytheon B3002004-09-02current
Learjet INCCabin Power Disconnect Switching Installation BAS31010024Modification PartLearjet 31A2004-04-14current

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.