The U.S. aircraft register, updated daily
Parts

Communication System

No failure report names the communication system. 6 FAA approvals let 3 companies make a replacement communication system, L3 Communications Integrated Systems holding the most (2).

Approved replacement parts 6 parts manufacturer approvals

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

L3 Communications Integrated Systems 2Airworks INC 2Airworks INC 2

For these models most: British Aerospace BAE 146 (2), Boeing 707 (2).

MakerPartReplacesFitsGrantedStatus
Airworks INCCommunication System MDL 23001 Section I, Pages 8, 9, 10Modification partBritish Aerospace Model (s) Bae 146-200 (S/N s E2204,...2004-08-12current
Airworks INCCommunication System MDL 23001 Item 1, Page 6Modification partBritish Aerospace Model (s) Bae 146-200 (S/N s E2204,...2004-08-12current
Airworks INCCommunication System MDL 23001 Section II Pages 8, 9, 10Santa Barbara Aerospace MDL 23001 Section II,...British Aerospace Bae 146-200 (S/N's E2204, E2210,...1999-05-18current
Airworks INCCommunication System MDL 23001 Item 1 Page 6Santa Barbara Aerospace MDL 23001 Item 1, Page 6British Aerospace Bae 146-200 (S/N's E2204, E2210,...1999-05-18current
L3 Communications Integrated SystemsCommunication System Installation Kit 7427A00000Boeing 707-353B1992-03-30current
L3 Communications Integrated SystemsCommunication System Installation Kit 7427A00000-Boeing 707-353B1992-03-30current

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.