The U.S. aircraft register, updated daily
Parts

Single Pilot

No failure report names the single pilot. 5 FAA approvals let 3 companies make a replacement single pilot, Metro Aviation INC 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 single pilot and sell it as an approved part for the models named. These are the companies holding such approvals for a single pilot:

For these models most: Sikorsky S-76 (2), Airbus Helicopters AS350 AStar (Écureuil), now H125 (1).

MakerPartReplacesFitsGrantedStatus
Metro Aviation INCSingle Pilot IFR Avionics Installation Kit 135M-150Modification PartEurocopter Deutschland GmbH ECD) (EC135 P1, P2, P2+2010-01-14current
Metro Aviation INCSingle Pilot IFR Avionics Installation 145M-150Modification PartEurocopter Deutschland GmbH ECD) (MBB-BK117 C-22010-01-14current
Keystone Helicopter CorporationSingle Pilot IFR Keystone 33776-61354Sikorsky 33776-61354Sikorsky S76B, S76C2002-01-03current
Keystone Helicopter CorporationSingle Pilot IFR 33776-6135433776-61354Sikorsky S76B, S76C2001-04-23current
Geneva AviationSingle Pilot/ Co-Pilot Seat G10512-1Modification PartEurocopter France AS350 AND AS355 Series.2000-01-04current

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.