The U.S. aircraft register, updated daily
Parts

Instrument System

No failure report names the instrument system. 1 FAA approvals let 1 company make a replacement instrument system, Balloonacy LTD LLC holding the most (1).

Approved replacement parts 1 parts manufacturer approvals

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

MakerPartReplacesFitsGrantedStatus
Balloonacy LTD LLCInstrument System, Digitool DBI-002 ARP5326453264Aerostar Intl, Inc. All series2013-07-07current

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.