N521

STCs that may be installed · 401

Approved for this aircraft’s airframe or engine model. The registry doesn’t record which STCs an aircraft has; its records do. In force first, then newest.

Query with SQL
duckdb -csv -c "SELECT m.matched_by, s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
  FROM (
    SELECT stc_number, min(side) AS side, arg_min(matched_by, side) AS matched_by, arg_min(matched_model, side) AS matched_model
    FROM (SELECT stc_number, 1 AS side, 'airframe' AS matched_by, matched_model FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_stc.parquet' WHERE aircraft_model_code = '1145005'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '59997')
    GROUP BY stc_number
  ) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
  ORDER BY m.side, s.status = 'Current' DESC, s.status_date DESC, s.stc_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Airframe · Airbus Helicopters AS350B3

STC SR00528DEInstallation of an Emergency Medical System (EMS).Air Methods LLCSTC SR00853DEInstallation of Fibrotek survey stingerUpper Limit AviationSTC SR04548CHInstallation of Appareo Systems AIRS-400 Flight Monitoring SystemAppareo SystemsSTC SR00425SEInstallation of a satellite phone.Turbolyft USA CorporationSTC SR00184IBInstallation of External Cargo Basket and Boarding StepBoost Human External Cargo Systems Inc.STC SR00182IBInstallation of the Avidyne Integrated Flight Display (IFD) Navigator(s)Horizon Design Services Ltd.STC SR02345LAInstallation of HeliSAS stability augmentation system and autopilotS-TEC CorporationSTC SR04637CHReplacement of existing main ship battery with Lithium Ion Battery and installation of Annunciator Control PanelAirwolf Aerospace LLCSTC SR09509RCInstallation of Garmin GRA 5500 Radar Altimeter SystemAirbus Helicopters Inc.STC SR04138NYInstallation of Replacement Heater LinesBoost Human External Cargo Systems Inc.STC SR00150IBInstallation of a Direction Finder model RT-600HELIBRAS - Helicópteros do Brasil S. A.STC SR00155IBInstallation of Video transmission System, to include a cabin rack, a cabin display mount and two antenna holders on landing skidsPROTOPLANE SPECIAL MISSION AIRCRAFTSTC SR02572AKInstallation of the "StableLight" 4-axis autopilotStandardAero Atlantic USA Inc.STC SR02120SEInstallation of Garmin GTN 6XX/7XX Navigation SystemGarmin International Inc.STC SR00082DEInstallation of a swivel mount armDart Aerospace USA Inc.STC SR00429NYInstallation and configuration of Left Side Pilot ConfigurationAirbus Helicopters Canada LimitedSTC SR04535NYInstallation of the Astronics (Max-Viz) 1200 or 1400 EVSAvio Design Group IncSTC SR00118IBManufacture of Cargo Hook Mount for Side Pull OperationsMustang Helicopters Inc.STC SR04692NYInstallation of Airframe-Mounted Fuel FilterAirbus Helicopters Canada LimitedSTC SH3319NMInstallation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,Precise Flight IncSTC SR00699NYInstallation of LH and/or RH cargo pods.Airbus Helicopters Canada LimitedSTC SR00376BOThe STC installs a SATCOM and Flight Data Monitoring System KIT 350-SAT-100Outerlink CorporationSTC SR11334DSInstallation of a Flightcell DZMx Satellite/Cellular/Tracking SystemAirbus Helicopters Inc.STC SR00470LAInstallation of Emergency FloatsDart Aerospace ULCSTC SR02762SEInstallation of Onboard Systems International Cargo Swing Suspension SystemOnboard Systems International, LLCSTC SR04557NYInstallation of the Fuel Cap ReplacementAvio Design Group IncSTC SR11322DSInstallation of the U.S. Customs and Border Protection configuration of systems and equipmentAirbus Helicopters Inc.STC SR00091IBInstallation of the Bear Paw KitAlpine Aerotech LPSTC SR00071IBInstallation of Geo-Physical Survey SystemPhoenix Aero Aviation Engineering Ltd.STC SR04669NYInstallation of Human External Cargo Y-Rope and Long-Line KitBoost Human External Cargo Systems IncSTC SR03512ATInstallation of HID Landing and Taxi LightsWhelen Aerospace TechnologiesSTC SR11189DSInstallation of provisions to install Garmin G500H GDU 1060 Display, L3 ESI-500 Electronic Standby Indicator and TA202 USB Charging PortAirbus Helicopters Inc.STC SR01644NYSearchlight installation in three configurations.Amtech Aeronautical LimitedSTC SR09500RC-DInstallation of L-3 Trilogy ESI-2000 or ESI-500 Electronic Standby IndicatorAirbus Helicopters Inc.STC SH3509SWInstallation of a Single and Dual Condenser Blower Air Conditioning SystemRSG Products IncSTC SR00886SEInstallation of Onboard Systems International Cargo Hook KitsOnboard Systems InternationalSTC SR01164SEInstallation of Onboard Systems International Cargo Hook Swing Suspension SystemOnboard Systems InternationalSTC SR01165SEFabrication of Onboard Systems Model 200-282-00 and 200-282-03, Cargo Hook Sling Suspension Kits.Onboard Systems International LLCSTC SR01166SEFabrication of Onboard Systems Model 200-281-00 Cargo Hook KitOnboard Systems International LLCSTC SR01393SEFabrication of Onboard Systems Model 200-286-01 Cargo Hook KitsOnboard Systems International LLCSTC SR01394SEFabrication of Onboard Systems Models 200-287-00 and 200-287-01 Cargo Hook KitsOnboard Systems International LLCSTC SR01588SEFabrication of Onboard Systems Model 200-299-00 Fuel Drain Guard Kit in accordance with Federal Aviation Administration (FAA) approved Onboard Systems Master Drawing List No. 155-111-00, Rev. 6, dated March 11, 2011, or later FAA-approved revision and Installation of the Fuel Drain Guard KitOnboard Systems International LLCSTC SR01804SEInstallation of Onboard Systems International Load Weigh SystemOnboard Systems International LLCSTC SR01862SEFabrication of Onboard Systems Model 200-282-01 or 200-282-02, Cargo Hook Sling Suspension SystemOnboard Systems InternationalSTC SR02719SEInstallation of Onboard Systems International Cargo Swing Suspension SystemOnboard Systems InternationalSTC SR02758LAInstallation of an AKV, Inc Data Collection SystemAKV Inc.STC SR01033DEInstallation of the Green Power Monitoring Systems (GPMS) Foresight MX Condition Monitoring SystemGreen Power Monitoring SystemsSTC SR02314LAInstallation of Sandel Avionics ST3400H Helicopter Terrain Awareness and Warning System (HTAWS)Sandel Avionics LLCSTC SR02001SEFabrication and installation of Model 72448 locking fuel cover assemblyTimberline Aerospace LLCSTC SR01078DEInstallation of Medical Interior EnhancementsCert Works LLC
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