The U.S. aircraft register, updated daily
Parts

Emi Back

No failure report names the emi back. 2 FAA approvals let 1 company make a replacement emi back, Glenair INC holding the most (2).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Airbus Helicopters EC-135 now H135 (2).

MakerPartReplacesFitsGrantedStatus
Glenair INCEMI Back Shell with Slide LO 557-563 M5001557-563, M5001Eurocopter EC1352013-08-27current
Glenair INCEMI Back Shell with Slide LO 557-563 M5001557-563 M5001Eurocopter EC1352013-06-10current

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.