The U.S. aircraft register, updated daily
Parts

Audio Mux

No failure report names the audio mux. 5 FAA approvals let 3 companies make a replacement audio mux, Custom Control Concepts LLC holding the most (3).

Approved replacement parts 5 parts manufacturer approvals

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

For these models most: Airbus A340 (2), Airbus A319 (2).

MakerPartReplacesFitsGrantedStatus
Astronics Custom Control Concepts INC.32X32 Audio MUX 020-0058-10020-0058-10Airbus A319-1332019-10-20current
Custom Control Concepts LLC32X32 AUDIO MUX 020-0058-10020-0058-10Airbus A340-5002014-08-04current
Custom Control Concepts LLC16X16 AUDIO MUX 020-0018-10020-0018-10Airbus A340-5002014-08-04current
Custom Control Concepts LLC32X32 Audio MUX 020-0058-10020-0058-10Airbus A319-1332013-05-20current
Custom Control Concepts INC32X32 Audio MUX 020-0058-10020-0058-10Airbus A318-1122010-08-10current

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.