The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

Aircraft Instruments CO

Named as the FAA publishes it on its approvals.

Holds 4 approvals to make replacement parts. FAA spelling: Aircraft Instruments Co.

Replacement parts approved 4 parts manufacturer approvals, 4 current · Doylestown, PA

A parts manufacturer approval lets a company make a replacement part for someone else's aircraft or engine and sell it as an approved part. This company's approvals are mostly for instruments and avionics (4).

Mcdonnell Douglas DC-10 2Scottish Aviation SERIES 100 1Dehavilland DHC-8 1Dehavilland DHC-7 1
1998-06-25Indicator 6250072 · replaces McDonnell Douglas 6250072 · DC-10-30, -30F, -40
1998-06-25Indicator 6250081 · replaces McDonnell Douglas 6250081 · DC-10-15
1997-12-15Fault Indicator 21002X-323M · replaces Lockheed 21002X-323M · L-1011-385-1, -1-14, -1-15
1992-12-31Position Indicator AIC 21102MN-372M · replaces deHavilland 21102MN-372M · DHC-7, dHC-8, Series 100

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.