The U.S. aircraft register, updated daily
Parts

An

No failure report names the an. 5 FAA approvals let 4 companies make a replacement an, Avionics & Systems Integration Group LLC holding the most (2).

Approved replacement parts 5 parts manufacturer approvals

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

For these models most: Enstrom Helicopter Corp 480 (2), Construcciones Aeronauticas Sa CN-235 (2), Dehavilland DHC-2 (1).

MakerPartReplacesFitsGrantedStatus
Aerocet IncorporatedAN677, Streamline Tie Rod, DHC-2 MK III 32-511-37-01Modification PartViking Air Limited DHC-2 MK.III2025-12-22current
Avionics & Systems Integration Group LLCAN/ARN-154 TACAN and SN3500 EHSI Systems, Enstrom 480B 1056-0001-00Modification PartEnstrom Helicopter... 480B2014-06-15current
Avionics & Systems Integration Group LLCAN/ARN-154 TACAN and SN3500 EHSI Systems, Enstrom 480B 156-001-00Modification PartEnstrom Helicopter... 480B2014-05-27current
Bae SystemsAN/AAR-57 Missile Warning System with an AN/ALE-47... 84856658427744-1EADS CASA CN-235-3002013-04-14current
Bae Systems INCAN/AAR-57 Missile Warning System with an AN/ALE-47... 84856658427744-1EADS CASA CN-235-3002013-04-14current

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.