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 SR11192DSInstallation of a Baggage Compartment Floor ProtectorAirbus Helicopters Inc.STC SR04297NYInstallation of the Alternate Standby AltimeterAirbus Helicopters Canada LimitedSTC SR00821DEInstallation of Automatic Dependent Surveillance - Broadcast (ADS-B) Out and in functionality using the BendixKing KT74 Transponder and qualified position sensor and ADS-B In ReceiverPeregrineSTC SR00828DEInstallation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the Garmin G330ES or G33H ES Transponder and qualified position sensorPeregrineSTC SH4748NMInstallation of a replacement instrument panel visor.Dart Aerospace USA Inc.STC SH4785NMInstallation of replacement dome light/air vent assembly.Dart Aerospace USA Inc.STC SH4786NMFabrication and Installation of dual control collective and cyclic sticks.Dart Aerospace USA Inc.STC SH4971NMInstallation of lead acid batteryDart Aerospace USA Inc.STC SR00211SEFabrication and Installation of rear seat shoulder harnessesDart Aerospace USA Inc.STC SR00646SEReplacement of the original landing gear skid tubes.Dart Aerospace USA Inc.STC SR02253SEFabrication of Geneva Aviation P162 Cross-Tube Antenna MountsDart Aerospace USA Inc.STC SR00602NYOperation with the left-hand and/or right-hand aft/side cabin doors removed.Airbus Helicopters Canada LimitedSTC SR03077NYInstallation of a HELICOM V2 NUM System or HELICOM V2+ NUM System for tracking a set of flight and system parameters during operation of the rotorcraft.International Services Electronique InformatiqueSTC SR09658RCInstallation of BLR FASTFIN System.BLR Aerospace LLC.STC SR01785LAInstallation of Airfilm Single Pole Utility Bracket.Airfilm Camera SystemsSTC SR03938NYInstallation of Max Pilot View Kit consisting of a new RH 'bubble' door with a larger transparent area, a new 'bow' shaped floor structure which the door conforms to, a floor viewing aperture outboard of the RH pilot's seat and a corresponding transparent section in the underlying fairing,GVH Aerospace LimitedSTC SR01652LAInstallation of External Attach FrameTyler Camera SystemsSTC SR00812DEInstallation of Honeywell Sky Connect Tracker III systemCert Works LLCSTC SR09508RCInstallation of Garmin GTS 800 Traffic Advisory SystemAirbus Helicopters, Inc.STC SR02492AKInstallation of a Crash Resistant Fuel System (CRFS)Vector Aerospace Helicopter Services USA Inc.STC SH2973SW-DInstallation of external markings.Airbus Helicopters, Inc.STC SR02393CHInstallation of an Inlet Barrier Filter systemDonaldson Company IncSTC SR01449LAInstallation of cargo rack.Tyler Camera SystemsSTC SR01521LAInstallation of a belly utility mount.Airfilm Camera Systems LLCSTC SR03681NYInstallation of Human External Cargo Dual Hook SystemBoost Human External Cargo Systems Inc.STC SR02544SEInstallation of a Honeywell ASPIRE 200 SATCOMHoneywell International IncSTC SR00104RDInstallation of Cargo Pod Assembly for AS350 series helicopterOceania Aviation LTDSTC SR09507RCInstallation of optional configuration co-pilot seat relocationAirbus Helicopters, Inc.STC SR03919NYInstallation of the Helicopter FilmWorks Mount AssemblieHelicopter Film Works IncSTC SR02487AKInstallation of L-3 Communications Avionics Systems ESI-500 Standby Instrument SystemADS-B Technologies, LLCSTC SR03889NYInstallation of the Skidtube Wearplate KitDart Aerospace LimitedSTC SR00103RDInstallation of Bike Racks for AS350 series helicopterOceania Aviation LTDSTC SR00617DEInstallation of a Reduced Instrument Panel, Pedestal, Optional Avionics System, and Night Vision Imaging SystemsAir Methods CorporationSTC SH8104SWInstallation of a fold-up attendant seat.RSG ProductsSTC SR02478AKInstallation of the L-3 Aviation Products Lynx multilink surveillance system model NGT-9000() part number 9029000-20000 or Garmin GTX-345 ADS-B transponder part number 011-03302-40Vector Aerospace Helicopter Services USA Inc.STC SR01954LAInstallation of a Goodrich electrical hoistOnboard Systems Hoist & WinchSTC SR03793NYInstallation of Seat Defender Kit P/N PC350-SD01 for Standard High-Back Crew SeatsPro-Comp Advanced CompositesSTC SR03771NYInstallation of an Enlarged Vertical Reference WindowAirbus Helicopters Canada LimitedSTC SR09125RC-DInstallation of FLIR U7000, U8000, U8500, 380-HD, or 380-HDc series Infrared Imaging SystemAirbus Helicopters, Inc.STC SR03748NYInstallation of Boarding StepsRamm Aerospace Inc.STC SR02475AKInstallation of the Lexavia Integrated Systems LFS3500 Enhanced Vision System (EVS) on Part 27 Airbus Helicopters equipped with a panel-mounted Multi-Function Display (MFD), primary navigational display or dedicated display with the ability to display video imageryLexavia Integrated SystemsSTC SR09312RC-DInstallation of an Avidyne 610 or 615 Traffic Advisory SystemAirbus Helicopters, Inc.STC SH7011SW-DInstallation of a Nightsun or Starburst SearchlightAirbus Helicopters, Inc.STC SR09311RC-DInstallation of a BMS Video Downlink SystemAirbus Helicopters, Inc.STC SR09501RCInstallation of Garmin G500H Electronic Flight Instrument System (EFIS)Airbus Helicopters, Inc.STC SR00811DECertification of Honeywell MK-XXI Helicopter Terrain Awareness and Warning System (HTAWS)Cert Works LLCSTC SR03693NYInstallation of the provisions for an Engine Air Intake CoverAirbus Helicopters Canada LimitedSTC SR02470AKInstallation of the L-3 Communications NGT -1000/2000/2500 ADS-B SystemADS-B Technologies, LLCSTC SR02471AKInstallation of the L-3 Communications NGT -9000/9000R ADS-B SystemADS-B Technologies, LLCSTC SR09504RCInstallation of AHI multi-bloc Center ConsoleAirbus Helicopters, Inc.
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