TCDS E-274

STCs approved under this data sheet · 70

Current certificates first, most recently changed first.

Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date
  FROM 'https://openairdocs.org/data/latest/faa_stc.parquet' s
  WHERE s.stc_number IN (SELECT stc_number FROM 'https://openairdocs.org/data/latest/faa_stc_model.parquet' WHERE tcds_number = 'E-274')
  ORDER BY 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.

STC SE732NEInstallation of 'Auto-Vac-4' primary vacuum system.Raymond IvesSTC SE3647SWEngine replacement parts.U.S. TechnicalSTC SE3513NMInstallation of a Mitsubishi 35 amp automotive alternator with alternator mounted Transpo Electronics solid-state voltage regulator.Lyle R. PetersSTC 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 CoSTC SE399NEInstallation of autovac-2 instrument vacuum system.Raymond IvesSTC SE388NEInstallation of Bendix magnetoes Model S4LN-21 and S4LN-20.Cloutier Raymond RSTC SE5924SWInstallation of stainless steel replacement exhaust studs on AVCO engines.Perrigo & Steele Aircraft Engr CompanySTC SE336NEAdd the following approved fuel: unleaded automotive gas 87 min. antiknock index.TecnomotionSTC SE244NEInstallation of Mattituck plasma flame sprayed cylinder barrels in Teledyne reciprocating engines.Mattituck Airbase, IncSTC 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 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 SE508ALAddition of crankcase relief valve.Univair Aircraft CorpSTC SE2392SWConversion to fuel injection configuration equivalent IO-320-E2A.Swick AircraftSTC SE2-7Carburetor air temperature bulb in Marvel-Schebler MA-4-5 carburetor.McElroy LynnSTC SE5CEPrestolite ALK-5001 alternator.Larsen IndustriesSTC SE367CHModification of AVCO Lycoming O-320-E2A engine by replacing four pistons with four O-320-D2A pistonsPlane Dynamix LLCSTC SE800GLSuperseded by STC SE01943CH. Add the following fuel: unleaded automotive gasoline, 87 minimum antiknock index.EAA Aviation FoundationSTC SE3692SWIncrease 5 minute takeoff maximum power rating to 160 horsepower.RAM Aircraft Limited Partnership
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