The U.S. aircraft register, updated daily
Parts

Communications Micro

No failure report names the communications micro. 2 FAA approvals let 2 companies make a replacement communications micro, Chippewa Aerospace holding the most (1).

Approved replacement parts 2 parts manufacturer approvals

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

For these models most: Bell 429 (1).

MakerPartReplacesFitsGrantedStatus
Bell Helicopter Textron INCL-3 Communications Micro Quick Access Recorder (QAR) Kit AA-14002Modification PartsBell Helicopter... 4292014-12-15current
Chippewa AerospaceL3 Communications Micro Quick Access Recorder (MQAR)... 145-3133-01-0001Modification PartEmbraer 135 and 145 Series with STC...2010-11-21current

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.