N405HH

STCs that may be installed · 146

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 = '1181008'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '42198')
    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-2

STC 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 SH610EAFollowing modifications are compatible with each other and may be incorporated simultaneously: STCs SA479SW, SH21EA, SH163EA.Carson Helicopters Inc · Lists 47G 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 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 InternationalSTC SA1INHelicopter bubble Series A, P/N 500-H.Plastal Manufacturing Ltd

Engine · Lycoming VO-435-A1D

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 VO-435 SeriesSTC SE01954SEInstallation of engine crankcase seal.Ly-Con Rebuilding CompanySTC SE8628SWInstallation of oil nozzles for lubrication of cam and filters.Cygnet Aerospace CorpSTC SE4408SWMiscellaneous engine cylinder replacement parts.Continental Motors, Inc. · Lists VO-435 SeriesSTC SE7504SWInstallation of any or all parts listed on Airmotive Engineering Drawing List No. 852-1, Rev. 1, dated 10/4/88, or later FAA approved revision.Continental Motors, Inc. · Lists VO-435 SeriesSTC SE7665SWInstallation of parts listed on Airmotive List No. 8810-3, Rev 6.Continental Motors, Inc. · Lists VO-435 SeriesSTC SE8776SWInstallation of coated cylinders and piston rings.Continental Motors, Inc. · Lists VO-435 SeriesSTC SE2902NMLycoming valve cover gasketReal Gaskets TennesseeSTC 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-435 SeriesSTC SE09492SCInstallation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013.Exxon Company USA · Lists VO-435 SeriesSTC SE00350SEInstallation of sump mounted chip detector.Aviation Development CorporationSTC SE8023SWInstallation and usage of AEROSHELLShell Development Co · Lists VO-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 VO-435 SeriesSTC SE5924SWInstallation of stainless steel replacement exhaust studs on AVCO engines.Perrigo & Steele Aircraft Engr Company · Lists VO-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 VO-435 SeriesSTC SE128NEUse of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines.AMS/OIL · Lists VO-435 SeriesSTC SE2-856American Bosch Induction vibrator VJR24B56X.Bell Helicopter Textron · Lists VO-435 SeriesSTC SE44WEUse of Kling Aviation Oil, Specifications KL-100, KL-200 and KL-300 in Continental and Lycoming engines.Kling Oil Company · Lists VO-435 Series
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