N61AX

STCs that may be installed · 45

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 = '05631E1'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41505')
    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.

Engine · Lycoming 0-235 series

STC SE04651CHTo allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22Swift Fuels LLCSTC SE00825WIInstallation of Specialty Products Spin-on oil filter on Lycoming Engines.B & C Specialty Products Inc.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 LLCSTC SE208SOInstallation of ice indicator in the carburetor.LegacySTC.comSTC SE04349CHInstallation of SureFly electronic ignitionSureFly Partners Ltd.STC SE02352CHInstallation of Challenger cleanable oil filter assemblyChallenger Aviation Products Inc.STC SE00939WIInstallation of B&C Specialty Products Model BC 315-( ) Starter on Lycoming engines.B & C Specialty Products Inc.STC SE2393CEInstallation of B&C Speciality Products lightweight (10.2 pounds) engine starter, part number BC-315-100-1 (12 volts) or part number BC-315-100-3 (24 volts)B & C Specialty Products Inc.STC SE03232CHInstallation of Engine Preheat Kit p/n TA2925-1 for 115 volt applicationHartzell Propeller Inc.STC SE04577CHInstall an electronic engine ignition systemElectroair Acquisition Corp · Lists O-235-ASTC SE01966WIUse of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft enginesGeneral Aviation Modifications Inc. · Lists O-235-ASTC SE8628SWInstallation of oil nozzles for lubrication of cam and filters.Cygnet Aerospace Corp · Lists O-235-C1STC SE792NWModification of a Lycoming0-235-L2C, or 0-235-L2A engine to increase HP rating from 115-HP at 2700 rpm to a continuous125 HP at 2800 rpm.4J's Aviation · Lists O-235-L2ASTC SE8776SWInstallation of coated cylinders and piston rings.Continental Motors, Inc.STC SE00218NYReplacement of Lycoming starter with SKY-TEC 12 volt starter installed.Hartzell Engine Technologies, LLCSTC SE00226NYReplacement of Lycoming starter with SKY-TEC 24-volt starter Models 149-24HT and 122-24HT. Approval limited to 24-volt DC source available to the starter.Hartzell Engine Technologies, LLCSTC SE00357NYReplacement of Lycoming starter with SKY-TEC 24-volt starter installed.Hartzell Engine Technologies, LLCSTC SE2901NMLycoming valve cover gasketReal Gaskets TennesseeSTC SE888GLReplacement of Bendix S4LN-20, -21, -1209, or -1227 model magnetos with Slick model 4250 and 4251 magnetos.Champion Aerospace LLC · Lists O-235-C1STC SE3877NMModification of a Lycoming O-235-L2C engine to increase the horsepower rating from 115 HP @ 2700 RPM to a continuous 125 HP @ 2800 RPMKai V. Nielsen · Lists O-235-L2CSTC SE8707SWAlteration of Lycoming O-235 engine to allow use of ethanol fuel.Shauck Dr Maxwell E Jr · Lists O-235-C1STC SE01930NYInstallation of Casper Labs 90 degree oil filter housing adapter.Casper Labs IncSTC SE01943CHAdd the following approved fuels: unleaded automotive gasoline 87 minimum antiknock index, per ASTM Specification D-439 or D-4814 of any volatility class, A through E, or 82UL AVGAS per ASTM D-6227.Experimental Aircraft Association Inc. · Lists O-235-C1STC SE790GLSuperseded by STC SE01943CH. Replace Lycoming piston number LW-13623 with Lycoming piston number 73851.EAA Aviation Foundation · Lists O-235-K2CSTC SE1779NMInstallation of Precise Flight, Inc. Standby Vacuum System SVS IIIPrecise Flight IncSTC SE5743NMIntallation of adapter for externally mounted oil filter.Aviation Development CorporationSTC SE00988CHModify Lycoming aircraft engine Model O-235-C2C rated at maximum continuous 108 hp at 2600 rpm and 6.75:1 compression ratio to maximum continuous 115 at 2700 rpm and 8.5:1 compression ratio.Precision Engine · Lists O-235-C2CSTC 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 CorporationSTC SE5173NMInstallation of a replacement oil cooler adaptor, P/N ADC-310.Aviation Development CorporationSTC SE2203NMInstallation of high compression pistons.Godwin John B Jr · Lists O-235-L2CSTC SE8023SWInstallation and usage of AEROSHELLShell Development CoSTC SE2606CEAdd unleaded and leaded automotive gasoline, 91 minimum antiknock index(RON+MON)/2 per ASTM Specification D-439.Petersen Aviation Inc · Lists O-235-L2ASTC SE452NEInstallation and usage of 'Mobil AV 1' aviation oil.Mobil Research & Development CorpSTC SE2035CEAdd the following approved fuel: unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index (RON+MON)/2. Intermixing with aviation gasoline also approvedPetersen Aviation Inc · Lists O-235-C1STC 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 CoSTC SE5945SWGrind mitrided choked engine cylinders .010-inch oversize and install .010-inch oversize pistons and rings.Superior Air Parts · Lists O-235-K2ASTC SE5924SWInstallation of stainless steel replacement exhaust studs on AVCO engines.Perrigo & Steele Aircraft Engr CompanySTC SE1976SWManufacture of new cylinder barrels and rebarreling with original cylinder head.Gary Aerospace CorpSTC 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, IncSTC SE5791SWInstallation of any or all engine components parts or modifications on Avco 0-235 series engines.Airmotive Engineering CorpSTC SE2364NMModification to lower horsepower rating from 118 H.P. at 2800 RPM to 115 H.P. at 2800 RPM for takeoff and 115 H.P. at 2700 RPM to 108 H.P. at 2600 RPM for maximum continuous.Snohomish Flying Svc Inc · Lists O-235-L2CSTC SE1445SOUse of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines.ProTecSTC SE128NEUse of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines.AMS/OILSTC SE5CEPrestolite ALK-5001 alternator.Larsen Industries
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