The U.S. aircraft register, updated daily
Parts

Ac

No failure report names the ac. 8 FAA approvals let 3 companies make a replacement ac, Carlisle Interconnect Technologies DBA Electronic Cable Specialists holding the most (4).

Approved replacement parts 8 parts manufacturer approvals

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

For these models most: Boeing 737 (4), Boeing 747 (2), Mcdonnell Douglas DC-10 (1).

MakerPartReplacesFitsGrantedStatus
Carlisle Interconnect Technologies DBA Electronic Cable SpecialistsW976AC - ATG, RIGHT, HORIZONTAL, JUMPER P20428-21706P20428-21706Boeing 737-900ER Series2020-06-15current
Carlisle Interconnect Technologies DBA Electronic Cable SpecialistsW981AC - ATG, LEFT, HORIZONTAL, JUMPER P20426-21706P20426-21706Boeing 737-900ER Series2020-06-15current
Carlisle Interconnect Technologies DBA Electronic Cable SpecialistsW979AC - ATG, LEFT, VERTICAL, JUMPER P20425-21706P20425-21706Boeing 737-900ER Series2020-06-15current
Carlisle Interconnect Technologies DBA Electronic Cable SpecialistsW977AC - ATG, RIGHT, VERTICAL, JUMPER P20427-21706P20427-21706Boeing 737-900ER Series2020-06-15current
Day-Ray Products INCAC/DC Power Supply 79-7DAC 79-7McDonnell Douglas DC-10-301995-12-03current
Day-Ray Products INCAC/DC Power Supply P/N 79-7DAC P/N 79-7McDonnell Douglas Models DC-10-301995-12-03current
Ametek AerospaceAC/PGM Voltmeter 520482Boeing 60B00113-3Boeing 747-100, 200, 3001993-11-18current
Ametek AerospaceAC/PGM Voltmeter 520482Boeing 60B00113-3Boeing 747-100, 200, 3001993-11-18current

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.