The U.S. aircraft register, updated daily
Parts

Ku Band

No failure report names the ku band. 7 FAA approvals let 3 companies make a replacement ku band, Intelsat Inflight LLC holding the most (4).

Approved replacement parts 7 parts manufacturer approvals

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

For these models most: Dassault FALCON 7 (2), Boeing 737 (2), Pilatus PC-12 (1), Boeing 777 (1), Airbus A330 (1).

MakerPartReplacesFitsGrantedStatus
Intelsat Inflight LLCKu-band Aircraft Networking Data Unit P37171-001P37171-001The Boeing Company 737-8, 737-92021-04-02current
Intelsat Inflight LLCKu-band Radio Frequency Unit P34632-001P34632-001The Boeing Company 737-8, 737-92021-04-02current
Intelsat Inflight LLCKu Band Radome Installation and System Activation Kit List 1027217Modification partBoeing 777-200 Series & 777-200LR Series2020-08-11current
Intelsat Inflight LLCKu Band Dome Installation Kit List 1024252Modification partAirbus A330-201, A330-202, A330-2032020-08-11current
Viasat INCKu-band Airborne Antenna Control Unit 11551871155187Dassault Aviation Falcon 7X2017-06-20current
Viasat INCKu-band Airborne Antenna Unit 1151745-0021151745-002Dassault Aviation Falcon 7X2017-06-20current
Sierra Nevada CORP (Snc)KU Band Antenna System MDL-01260001Modification PartPilatus Aircraft PC-12, PC-12/45, PC-12/472011-07-06current

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.