N2985W

STCs that may be installed · 132

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 = '1181025'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41944')
    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 · Bell 47G3B2A

STC SH4-612Conversion of Model 47G to Model 47G-2M.Southwest Heli Inc · Lists 47 SeriesSTC SH4-619Exhaust muffler.Northrop Corporation · Lists 47 SeriesSTC SH4-693Landing gear extended and electro-magnetic prospecting equipment installed.Texas Gulf Sulphur Co · Lists 47 SeriesSTC SH4-742Power takeoff unit at generator pad of Lycoming VO-435-A engine to drive centrifugal pump (Simplex ALCCS-1) for agricultural spraying operations.Stockton Helicopters · Lists 47 SeriesSTC SH4-826Franklin 6V-335-AIA engine.Economy Helicopters · Lists 47 SeriesSTC SH58WEThree-view camera mount and Wild RC-8 camera.Pictorial Crafts Inc · Lists 47 SeriesSTC SH59WETwin flow pump on Franklin engine lower generator drive pad and re- route of right-hand tail rotor cable.Simplex Manufacturing Co · Lists 47 SeriesSTC SH61WEBowles heli-tank on previously approved bomb shackle adapter assembly.USDA Forest Service · Lists 47 SeriesSTC SH62SWLong range fuel tanks.Petroleum Helicopters Inc · Lists 47 SeriesSTC SH6CESnow shoes.Johnson Flying Svc Inc · Lists 47 SeriesSTC SH73WESpray system with Simplex pump.Serv-Aero Engineering Inc · Lists 47 SeriesSTC SH78WEInstallation of Calicopters Cabin Heater Kit CC 1000.Calicopters Inc · Lists 47 SeriesSTC SH799SWWater contact sensor.Lek-Trol Inc · Lists 47 SeriesSTC SH7CECargo carrier.Johnson Flying Svc Inc · Lists 47 SeriesSTC SH87SWDust, seeder, or spray kit 500.Saylor Flying Service · Lists 47 SeriesSTC SH95SWBell 47G-2 floats.Petroleum Helicopters Inc · Lists 47 SeriesSTC SH4-1555Spray equipment.Agricultural Aviation Engineering Company · Lists 47 SeriesSTC SA2350NMInstallation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories.Electronics International

Engine · Lycoming TVO-435-F1A

STC SE2932SWInstall carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive.Alcor LLC · Lists TVO-435 SeriesSTC SE01954SEInstallation of engine crankcase seal.Ly-Con Rebuilding CompanySTC SE01966WIUse of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft enginesGeneral Aviation Modifications Inc.STC SE8628SWInstallation of oil nozzles for lubrication of cam and filters.Cygnet Aerospace CorpSTC SE8776SWInstallation of coated cylinders and piston rings.Continental Motors, Inc. · Lists TVO-435 SeriesSTC SE09492SCInstallation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013.Exxon Company USA · Lists TVO-435 SeriesSTC SE00350SEInstallation of sump mounted chip detector.Aviation Development CorporationSTC SE8023SWInstallation and usage of AEROSHELLShell Development Co · Lists TVO-435 SeriesSTC SE452NEInstallation and usage of 'Mobil AV 1' aviation oil.Mobil Research & Development Corp · Lists TVO-435 SeriesSTC SE5879SWUse of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP.Phillips Petroleum Co · Lists TVO-435 SeriesSTC SE5924SWInstallation of stainless steel replacement exhaust studs on AVCO engines.Perrigo & Steele Aircraft Engr Company · Lists TVO-435 SeriesSTC SE80NEInstallation and usage of Bel-Ray synthetic aviation oil, Bel-Ray Aero 1, (nonsupercharged), horizontally opposed direct drive, aircraft engines of 350 hp. or less.Bel-Ray Company, Inc · Lists TVO-435 SeriesSTC SE128NEUse of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines.AMS/OIL · Lists TVO-435 SeriesSTC SE44WEUse of Kling Aviation Oil, Specifications KL-100, KL-200 and KL-300 in Continental and Lycoming engines.Kling Oil Company · Lists TVO-435 Series
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