The U.S. aircraft register, updated daily
Parts

Emi

No failure report names the emi. 3 FAA approvals let 1 company make a replacement emi, Hughes Network Systems holding the most (3).

Approved replacement parts 3 parts manufacturer approvals

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

For these models most: Mcdonnell Douglas DC-9 (1), Boeing 737 (1), Airbus A320 (1).

MakerPartReplacesFitsGrantedStatus
Hughes Network SystemsEMI/RFI Filter, Dwg No 1013487, Rev F, dated October 7, 1993 1013487-0002C23VP-8300-00Airbus A320-211, A320-2121998-07-06current
Hughes Network SystemsEMI/RFI Filter, Dwg No 1013487, Rev F, dated September 7, 1993 1013487-0002C23VP-8300-00Boeing 737-200, -300, -400 and -500 Series1998-07-06current
Hughes Network SystemsEMI/RFI Filter 1013487-00011013487-0001McDonnell Douglas DC-9-81, -82, -831993-11-18current

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.