N174EC

STCs that may be installed · 93

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 = '4470506'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '03035')
    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 · Hughes 369A (OH-6A)

STC SR01059LAInstallation of right side dual utility mountAirfilm Camera Systems LLCSTC SR00709ATInstallation of Starter-Generator Cooling KitPrecision Heli-Support LLC · Lists 369 SeriesSTC SR00771LAInstallation of right-side utility mount.Airfilm Camera Systems LLCSTC SR00772LAInstallation of left-side utility mount.Airfilm Camera Systems LLCSTC SR00862LAInstallation of aft belly utility mount.Airfilm Camera Systems LLCSTC SR04637CHReplacement of existing main ship battery with Lithium Ion Battery and installation of Annunciator Control PanelAirwolf Aerospace LLCSTC SH2735NMInstallation of pneumatic door actuators.Dart Aerospace USA Inc.STC SR04160CHInstallation of Heli-Preheat Kit, p/n TA3089-1 for 115 volt applicationHARTZELL PROPELLER INCSTC SH3319NMInstallation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,Precise Flight IncSTC SR00314ATInstallation of engine firewall in Hughes 369 model helicopterThoroughbred Aviation Maintenance Inc · Lists 369 SeriesSTC SR00450ATInstallation of a seat pan inspection panel.Thoroughbred Aviation Maintenance Inc · Lists 369 SeriesSTC SR00829ATInstallation of front extended cabin step.Thoroughbred Aviation Maintenance Inc · Lists 369 SeriesSTC SR01839ATInstallation of cyclic friction leversThoroughbred Aviation Maintenance Inc.STC SR03265ATModification of engine gearbox breather system by the installation of Heli-Tech "HT800-Engine Gearbox Breather Kit", P/N HT800Thoroughbred Aviation Maintenance IncSTC SH1152NWInstallation of the Automatic Flagman Model 135 Control Stick GripAir Products & Parts LLCSTC SR02001SEFabrication and installation of Model 72448 locking fuel cover assemblyTimberline Aerospace LLCSTC SR02704SEInstallation and maintenance of the Sunspot 36 and 46 series lightsAeroLED's Holdings LLCSTC SA615EAInstallation of a Whelen Anti-Collision Strobe Light System as replacement for originally installed anti-collision lights.Whelen Aerospace TechnologiesSTC SR00359BOInstallation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.Whelen Aerospace TechnologiesSTC SH2554NMInstallation of Modified front window canopy.The NORDAM Group LLCSTC SH8418SWInstallation of pop out windowsThe NORDAM Group LLCSTC SR02058SEFabrication of Aerometals Fuel Vent Emergency Shutoff Valve Assembly in accordance with Aerometals Master Drawing List No. Aero-MDL-002, Revision A, dated February 24, 2010, or later FAA-approved revision; and installation of this assembly in accordance with Aerometals Installation Instructions No. Aero-Inst-001, Revision NC, dated April 07, 2009, or later FAA-approved revision.AerometalsSTC SR02458LACompressor Plenum Inspection Panel installedPrecision Heli-Support, LLCSTC SR02487AKInstallation of L-3 Communications Avionics Systems ESI-500 Standby Instrument SystemADS-B Technologies, LLCSTC SH4344NMReplace existing fiberglass strut leg fairings with aluminum fairingsCascade STC LLCSTC SH4909NMReplace the aft engine compartment heat blanket with a stainless steel firewall.Cascade STC LLCSTC SR02394AKReplacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting systemSeaplanes North LLCSTC SR01524SEFabrication of AMC AM369A3600-603 horizontal stabilizer.AerometalsSTC SH7091NMInstallation of a Simplex Manufacturing Company Model 8500 agricultural tank sprayerSimplex Manufacturing CompanySTC SR02095SEFabrication of a replacement Aerometals Scavenge Pump Assembly.AerometalsSTC SH3756NMInstallation of tailboom,AerometalsSTC SR01960LAInstallation of removable seat pansAerometalsSTC SH2288NMInstallation of Spectrolab SX-16C nightsun searchlight.Gerbino Flight SystemsSTC SH250WEInstallation of a P.A. speaker kit.Allen J Gerbino, Gerbino Flight SystemsSTC SH2530NMInstallation of quick removal door hinges.Gerbino Flight SystemsSTC SH281WEInstallation of VIP single passenger seats.Gerbino Flight SystemsSTC SH207WEInstallation of range extension fuel tank in cargo area.ROBERTSON FUEL SYSTEMS LLCSTC SR00103SEInstallation of Aviation Development Corporation oil filterAviation Development CorporationSTC SR01948SEFabrication and installation of an Right Hand Fuel Tank Filler AssemblyAerometalsSTC SR01996SEFabrication and installation of an oil tank filler cap assembly in the above model rotor craftAerometalsSTC SR01924LAInstallation of a Platinum Aviation cockpit pedestal slant panelIntegrated Flight SystemsSTC SR01675SEFabrication of AMC Part Number AM369A4516 ( ), N1 Tachometer Indicator and AM369D24518 ( ) N2/NR Tachometer IndicatorAerometalsSTC SR01718SEInstallation of tail rotor hub assembly.AerometalsSTC SR01942SEFabrication of AMC Tail Rotor Pitch Control Assemblies.AerometalsSTC SR09184RCInstallation of a replacement main rotor blade, part number 500P2100-301 and 303.Helicopter Technology CoSTC SR00062BOInstallation of a Pratt & Whitney Engine Services, Inc. Health Usage Monitoring System (HUMS) Model 1122, P/N HUMS-A-070-1.Pratt & Whitney Engine Services Inc.STC SR01551SEFabrication of AMC Part Number AM369A1231 droop stop roller assembly.AerometalsSTC SH631NEInstallation of Fibre Reinforced Plastic Interior Trim Panels and Ducting.Prism Helicopters LtdSTC SR01046ATInstallation of Allison Model 250-C10D (T63-A-700) engine.Rick SweetSTC SR01055ATInstallation of an Allison Model 250-C20C (T63-A720) engine.Rick Sweet
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