The U.S. aircraft register, updated daily
Parts

Uns Flight

No failure report names the uns flight. 6 FAA approvals let 5 companies make a replacement uns flight, Keystone Helicopter Corporation 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 uns flight and sell it as an approved part for the models named. These are the companies holding such approvals for a uns flight:

For these models most: Sikorsky S-76 (2), Short Bros SD3 (1), Learjet 45 (1), Beechcraft B300 King Air 350 (1).

MakerPartReplacesFitsGrantedStatus
B/E Aerospace INCUNS-1L Flight Management System S360-FMS-900Modification PartShort Brothers SD3-602008-04-23current
Universal Avionics Systems CorporationUNS-1( ) Flight Management System SCN 802/902 Installation MDL-1002Modification partsRaytheon B300 Aircraft with STC SA01570LA installed2005-02-07current
Learjet INCUNS-1C Flight Management System (Software Version 604.X)... BAS45010006Modification PartLearjet 452004-11-03current
Keystone Helicopter CorporationUNS-1D Flight Management System Keystone 33776-61341Sikorsky 33776-61341Sikorsky S76B, S76C2002-01-03current
Keystone Helicopter CorporationUNS-1D Flight Management System 33776-6134133776-61341Sikorsky S76B, S76C2001-04-23current
Hollingsead International (No Longer Have Pma Production Approval)UNS-1D Flight Management System MDL 12036Santa Barbara Aerospace Parts as listed per...Lockheed L-382G1998-09-17current

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.