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 SR09277RC-DInstallation of a Spectrolab Nightsun II Searchlight system.American Eurocopter CorporationSTC SR09278RC-DInstallation of a quick removable LH and/or RH aft cabin door.American Eurocopter CorporationSTC SR09117RC-DInstallation of an Aero Aire, Air Conditioner System, with Forward EvaporatorEnviro Systems Inc.STC SH2917SW-DInstallation of Electric Attitude and/or Directional Gyro instruments.American Eurocopter CorporationSTC SH7003SW-DInstallation of a modified rear seat.Thales Avionics Inc.STC SR01647NYInstallation of a vertical reference window and optional torque indicator on cabin floor.Chinook Aviation Inc.STC SR01196SEInstall Brace Support Strut (P/N BA001-53-001-1) in accordance with N. A. Waterhouse & Associates Top Drawing BA001-1000, Revision NC, dated February 27, 2003.Waterhouse Nigel A.STC SR01620NYInstallation of Dual High Back Seat.Dart Aerospace LimitedSTC SW09277RC-DInstallation of a Spectrolab Nightsum II Searchlight System.American Eurocopter CorporationSTC SR00825NYInstallation of Claircom air terminal systems.Aeronautical Accessories Inc.STC SR09265RC-DInstallation of a Wulfsberg C5000 FM SystemWulfsberg Electronics DivisionSTC SR01403LAInstallation of Spectrolab Nitesun II searchlight.Meeker Aviation Services LtdSTC SR01547NYInstallation of Bearpaws.Eagle Copters LtdSTC SR01164NYInstallationof ICS Cargo Pods.HL Heli-Conversions Canada Ltd.STC SR01535NYInstallation of Kodiak NS500 remote guidance unit system.Eagle Navigation Systems Inc.STC SR01282CHInstall EAC, Inc. Universal Side Mount.EAC Helicopters, IncorporatedSTC SR01097SEFabrication of Simplex Model 910 adjustable cargo mirror system in accordance with Simplex Master Drawing List No. (MDL) 910 Revision A, dated March 19, 2002 or later Federal Aviation Administration (FAA) approved revision; and installation of this system in accordance with Symplex Installation Document No. 910-102 002-001, Revision B, dated May 9, 2002, or later FAA approved revision. This modification must be maintained in accordance with Simplex Maintenance Manual Document No. 910-102 005-001, Revision A, dated March 15, 2002, or later FAA approved revision.Simplex Manufacturing CompanySTC SH1012NEBaggage door hinge and latch modification.Dart Aerospace LimitedSTC SR01497NYInstallation of COMM/NAV System. Approved for installation on Eurocopter France AS350 B3, serial number 3267, ONLY.Eurocopter Canada LimitedSTC SR01411NYInstallation of OSAT-100 Airborne Position/Data Communicator.Technisonic Industries LimitedSTC SR00572NYInstallation of RH and/or LH Stirrup Steps.Eurocopter Canada LimitedSTC SR01225NYInstallation of Pacific Scientific P/N 0118037-01 or -03 restraint system.Pacific ScientificSTC SR00908SEInstallation of float brackets in accordance with Certified Technology Drawing List CT9804, Revision IR, dated October 31, 1999, or later FAA approved revisions.Certified Technology IncSTC SH201WEInstallation of stirrup assemblies to directional control pedals for operation by handicapped pilot. (US ARMY OH-13E 205A)Dallwig Barry CSTC SR00405NYInstallation of emergency litter kit.Dart Aerospace LimitedSTC SR00831LAInstallation of Apical Emergency float kit, p/n 20416.Apical Industries IncSTC SR00906NYInstallation of rail steps.Eurocopter Canada LimitedSTC SH709ALInstallation of Airglas ski Model L2700AS350 skis.Airglas Inc.STC SR01189NYInstallation of settling protectors.Eurocopter Canada LimitedSTC SH4032SWInstallation of Air Cruisers Model D24724 emergency flotation gear.Air Cruisers CompanySTC SH2875SWInstallation of electric turn and slip indicator.American Eurocopter CorporationSTC SR09000RCInstallation of miscellaneous windows.Tech-Tool Plastics IncSTC SH274WEInstallation of DeVore Tail Rotor Floodlights on upper surfaces of horizontal stabilizer.DeVore Aviation Corporation of America, a New Mexico CorporationSTC SR00954NYInstallation of skylight windows.Eurocopter Canada LimitedSTC SR00817NYInstallation of wire strike protection system.Aero Consulting Services LtdSTC SR00627LAInstallation of utility floats.Apical Industries IncSTC SR00679NYInstallation of Mitsubishi Airborne Satellite Telephone System.Eurocopter Canada LimitedSTC SR00657NYModification of left hand and/or right hand side cargo door.Eurocopter Canada LimitedSTC SH2973SWInstallation of external markings.American Eurocopter CorporationSTC SH4016SWInstallation of hourmeter.American Eurocopter CorporationSTC SH5797SWInstallation of Tech-Tool performed acrylic plastic windshield.Tech-Tool Plastics IncSTC SH8754SWInstallation of aft cabin comfort windows.Tech-Tool Plastics IncSTC SH8966SWInstallation of aft cabin comfort windows.Tech-Tool Plastics IncSTC SR09046RCInstallation of a reverse slide camera window.Tech-Tool Plastics IncSTC SR01441ATInstallation of Ultra Media Camera System.Aero Avionics, Inc. · Lists AS-350 SeriesSTC SR00873AT-DInstallation and operation of a Tyler Camera Mount System Nose Camera Mount.Tyler Camera SystemsSTC SR00491AT-DInstallation and operation of a Tyler Camera mount systems nose camera mount.Tyler Camera Systems · Lists AS-350 SeriesSTC SH4970SWInstallation of Marathon TCA or TSP 1735 battery.Marathon Power Tech Co · Lists AS-350 SeriesSTC SH5050NMInstallation of Tyler middle mount camera system in aft compartment of Aerospatiale AS-350 and AS-355 Series helicopters.Tyler Camera Systems · Lists AS-350 SeriesSTC SR00528DE-DInstallation of an Emergency Medical System (EMS)Air Methods Corporation
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