N797WS

STCs that may be installed · 154

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 = '1181031'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41534')
    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 47G-4A

STC SH4-1161Full flow lube oil filter 30690B with element 1A0286.Winslow Aerofilter Corp · Lists 47 SeriesSTC SH4-1162Adapter assembly bomb shackle mounting fabrication and installation. (When any load or device is carried on the bomb shackle operation must be under restricted category.)USDA Forest Service · Lists 47 SeriesSTC SH4-1332Cargo sling and shackle. (When any load is carried on this shackle, operations must be under restricted category.)USDA Forest Service · Lists 47 SeriesSTC SH4-1340Spray pump 1-1/4 inch. (Restricted category only.)Simplex Manufacturing Co · Lists 47 SeriesSTC SH4-1349Spray pump 1-1/4 inch. (Restricted category only.)Simplex Manufacturing Co · Lists 47 SeriesSTC SH4-1392Pesco 1P-677 hydraulic pump.Comet Copters · Lists 47 SeriesSTC SH4-1419Exhaust muffler.Northrop Corporation · Lists 47 SeriesSTC SH4-1499Exhaust mufflers.Comet Copters · Lists 47 SeriesSTC SH4-1604100-gallon borate tank.West-Figueroa Trust · Lists 47 SeriesSTC SH4-1628Full flow lube oil filter 30690B with element 1A0286.Winslow Aerofilter Corp · Lists 47 SeriesSTC SH4-1646Full flow lube oil filter 30690B with element 1A0286.Winslow Aerofilter Corp · Lists 47 SeriesSTC SH4-1650Engine cooling fan shrouds.Air Carrier Interiors Inc · Lists 47 SeriesSTC SH4-349Fabrication and installation of adapter assembly for bomb shackle mounting. (When any load or device is carried on the bomb shackle, operation must be under restricted category.)USDA Forest Service · Lists 47 SeriesSTC SH4-494Full flow lube oil filter 30690B with element 1A0286.Winslow Aerofilter Corp · Lists 47 SeriesSTC 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 VO-540 series

STC SE04651CHTo allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22Swift Fuels LLC · Lists VO-540-B1ASTC 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 LLCSTC SE04349CHInstallation of SureFly electronic ignitionSureFly Partners Ltd. · Lists VO-540-A1ASTC SE01954SEInstallation of engine crankcase seal.Ly-Con Rebuilding Company · Lists VO-540-A1ASTC SE01966WIUse of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft enginesGeneral Aviation Modifications Inc. · Lists VO-540-A1ASTC SE8628SWInstallation of oil nozzles for lubrication of cam and filters.Cygnet Aerospace Corp · Lists VO-540-A1ASTC SE4408SWMiscellaneous engine cylinder replacement parts.Continental Motors, Inc.STC SE8776SWInstallation of coated cylinders and piston rings.Continental Motors, Inc.STC SE2902NMLycoming valve cover gasketReal Gaskets Tennessee · Lists VO-540-A1ASTC SE7582SWGrinding of high compression NITRIDED Cylinders to .010 oversize, as an alternative to chrome plating or rebarreling, and the installation of SL10207 P10 Piston, SL74241 P10 Top and second compression ring, and SL 73857 P10 oil control ringSuperior Air Parts, Inc · Lists VO-540-C1ASTC SE1779NMInstallation of Precise Flight, Inc. Standby Vacuum System SVS IIIPrecise Flight Inc · Lists VO-540-A1ASTC SE00890LAInstallation of Nickson's cylinder barrels on Lycoming reciprocating engine models.Nickson's Machine Shop IncSTC SE1-201Installation of the Richter Aero Equipment Type B-4 or B-5 Temperature Probe. (O-360 SERIES (excl. A1C, C2B, C2D))MidContinent Instru Co Inc · Lists VO-540-B1ASTC SE09492SCInstallation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013.Exxon Company USASTC SE00350SEInstallation of sump mounted chip detector.Aviation Development Corporation · Lists VO-540-A1ASTC SE8023SWInstallation and usage of AEROSHELLShell Development CoSTC SE452NEInstallation and usage of 'Mobil AV 1' aviation oil.Mobil Research & Development CorpSTC 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
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