N391SC

STCs that may be installed · 444

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 = '2073342'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '17237')
    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 · Continental IO-520-F

STC SE09637SCRemove existing rocker arm assemblies and install modify rocker arm assemblies.General Aviation Modifications Inc.STC SE03187ATSTC for the conversion of Teledyne Continental Motors (TCM) Models IO-520-D, -E, -F, or -L to the respective PowerLite Models IO-550-D-AP, -E-AP, -F-AP, or -L-AP which have the same ratings and limitations as TCM Models IO-550-D, -E, -F, or -L, respectively.Vitatoe Aviation LLCSTC SE1186SWRegrooving of pistons P/N 631475 or P/N 632585Continental Motors, Inc.STC SE2340SWInstallation of modified cylinder assemblies, barrels, piston, and repaired crankcases.Continental Motors, Inc.STC SE5820SWInstallation of Airmotive exhaust valve, P/N AEC-637781.Continental Motors, Inc. · Lists IO-520 SeriesSTC SE8776SWInstallation of coated cylinders and piston rings.Continental Motors, Inc.STC SE09979SCModification of Teledyne Continental Motors IO-520-B, IO-520-BA, or IO-520-BB engine to an Ultimate Engines IO-550-B/UE engineGeneral Aviation Modifications, Inc.STC SE3330NMContinental valve cover gasketReal Gaskets TennesseeSTC SE7325SW-DInstallation of crankcase modifications.RAM Aircraft Limited PartnershipSTC SE09846SCInstallation of S539800M30 starter adapter springs.Aircraft Specialties Services IncSTC SE443GLIncorporation of a fuel flow transducer.Shadin AvionicsSTC SE1780NMInstallation of Precise Flight standby vacuum system (SVS III).Precise Flight IncSTC SE5743NMIntallation of adapter for externally mounted oil filter.Aviation Development CorporationSTC SE09997SCModification of Teledyne Continental Motors IO-520-B or IO-520-BA or IO-520-BB engine.Barrett Performance Aircraft · Lists IO-520 SeriesSTC SE09513SCInstallation and usage of Exxon 20W50 Multigrade aircraft engine oil conforming to Exxon Oil Formulation WS-3013.Exxon Company USA · Lists IO-520 SeriesSTC SE09559SCInstallation of US Airparts roller rocker arm assemblies P/N US92E exhaust and US92I intake.US Airparts, Inc.STC SE55WEModification of fuel injection manifold valve P/N 626547 to the P/N 631427 or P/N 636326 configuration.AAR Aircraft Services Inc. d/b/a AAR Aircraft Services-Oklahoma · Lists IO-520 SeriesSTC SE00577NYInstallation of Canadian Aero Mfg. (C.A.M.) Oil Coolers.Canadian Aero ManufacturingSTC SE09319SCModify oil pan adding a new oil sump drain.Texas Skyways Inc · Lists IO-520 SeriesSTC SE00350SEInstallation of sump mounted chip detector.Aviation Development CorporationSTC SE00427NYInstallation, operation and inspection of CAM oil coolers.Canadian Aero ManufacturingSTC SE2509NMInstallation of an emergency fuel system.Mission Avn FellowshipSTC SE09054SCRemove fuel injection system, install carburetor and install 7.5:1 compression ratio pistons in place of 8.5:1 compression ratio pistons.Texas Skyways IncSTC SE00143SEReplaces the following Teledyne-Continental part numbers: 641682 (Rocker Arm, Exhaust), 539742 (Rocker Arm, Intake), 539740 (Rocker Arm, Shaft) and 538304 (Pushrod Assembly)Dakota Aircraft Parts IncSTC SE09017SCConvert to a Tex Skyways O-520-F-TS engine by removing fuel injection system and installing carburetor.Texas Skyways IncSTC SE8687SWRegrooving of pistons P/N 631475 or P/N 632585.Capehart Industries, Inc · Lists IO-520 SeriesSTC SE4314NMReplacement of the original engine oil screen with an external mounted full flow oil adapter & spin-on filter.Timberman Allen ESTC SE8594SWInstallation of roller rocker arm P/N PE 92I intake and PE92E exhaust.Performance EngineeringSTC SE5205NMInstallation of an Oilamatic engine filter screen adapter.Oilamatic IncSTC SE400NEInstallation of Auto-vac-2 instrument vacuum system.Raymond IvesSTC SE7422SWInstallation of Performance Engineering roller rocker arms.Performance EngineeringSTC SE938GLInstallation of oil filler tube extension.Rapco, IncSTC SE2197CEAdd the following approved fuel: leaded & unleaded automotive gasoline 91 minimum antiknock index (RON+MON)/2. Intermixing with aviation gasoline also approved.Petersen Aviation IncSTC SE4020NMInstallation of Ritter and Iverson Cam P/N 32122-1.Ritter & Iverson Co, IncSTC SE3812SWRecontouring and polishing(porting) of intake manifold and exhaust parts and air flow balancing.High Performance Aircraft · Lists IO-520 SeriesSTC SE452NEInstallation and usage of 'Mobil AV 1' aviation oil.Mobil Research & Development Corp · Lists IO-520 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 IO-520 SeriesSTC SE244NEInstallation of Mattituck plasma flame sprayed cylinder barrels in Teledyne reciprocating engines.Mattituck Airbase, Inc · Lists IO-520 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 IO-520 SeriesSTC SE1445SOUse of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines.ProTec · Lists IO-520 SeriesSTC SE80WEInstallation of an emergency fuel system.Mission Avn FellowshipSTC SE72WEBG-341 spark plug as eligible for installation on listed Continental engines.Lewis LeibeeSTC SE12GLInstallation of oil filler cap.Ray Whyte Electric Products Co.STC SE7325SWInstallation of crankcase modifications.RAM Aircraft Limited Partnership
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