N9855Y

STCs that may be installed · 152

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 = '21101NL'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '42397')
    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 · Champion 7EC(CONV)

STC SA5925NMInstallation of oil pressure/temperature instrument.Electronics InternationalSTC SA5924NMInstallation of RPM instrument.Electronics InternationalSTC SA2-934Installation of fiberglass coveringRazorback Fabrics IncSTC SA531CHInstallation of Mitchell oil pressure gauge and oil temperature gauge.Mitchell Aircraft ProductsSTC SA19SOInstallation of left and/or right auxiliary fuel tank(s).Aero Fabricators CoSTC SA00215NYInstallation of CAVU Model AM100 AVMIX engine fuel/air mixture setting system.CAVU Products LimitedSTC SA312CHInstallation of shoulder harness and crotch straps.Hooker Custom HarnessSTC SA5656NMInstallation of burglar alarm system.Thompson Harold SSTC SA5926NMInstallation of manifold pressure instrument.Electronics InternationalSTC SA1626NM PAGE 1Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series)Electronics InternationalSTC SA5755NMInstallation of a propeller anti theft device.Davis Ray GSTC SA2844CEInstallation of a plastic cap enclosure over the anti-collision strobe light system.Air Transport IncSTC SA1768GLInstall Aero Fabricators shoulder harness and seat belt assembly.Aero Fabricators CoSTC SA150SOInstallation of surface fabric attachment clip.Arbor CompanySTC SA2350NM PAGE 1Installation of Electronics International Inc digital carburetor/outside air temperature gaugesElectronics InternationalSTC SA4624NMInstallation of F. Atlee Dodge springs 2097 and 2127 to replace bungee cords on ski equipped airplanes.F Atlee Dodge Aircraft ServiceSTC SA4302NMInstallation of Electronics Int'l digital automatic engine analyzer.Electronics InternationalSTC SA1358GLInstall Model R2800 retractable skis.Aero Ski Manufacturing Co IncSTC SA3862NM PAGE 1Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories.Electronics InternationalSTC SA3618NMApplication of polyurethane finishing system.Talkeetna Aero Svcs, IncSTC SA2190NM PAGE 1Installation of electronics International Digital Volt/Amp Gauges and Accessories.Electronics InternationalSTC SA1351WEReplace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12)Ceconite IncSTC SA4-1210Installation of Eonnex cover on aircraft surfaces.Ceconite, IncSTC SA308EAInstallation of carburetor ice detection system 105AP in single and twin engine aircraft and single engine helicopters powered by Continental, Franklin, and Lycoming type engines equipped with Marvel-Schebler MA-2, MA-3, MA-4, MA-4-5, MA-6 and HA-6 series carburetors. (Normal,Utility and Acrobatic Category airplanes and helicopters equipped with engines and carburetors as described.)Alfred R PuccinelliSTC SA001410BOInstallation of an AV-30-C Multi-Mode IndicatoruAvionix CorporationSTC SA2350NMInstallation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories.Electronics InternationalSTC A2309WEInstallation of Madras Air Service Part Number 104 Wing TipsMadras Air Service

Engine · Lycoming O-235-C

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 LLC · Lists O-235 SeriesSTC SE208SOInstallation of ice indicator in the carburetor.LegacySTC.com · Lists O-235 SeriesSTC SE04349CHInstallation of SureFly electronic ignitionSureFly Partners Ltd.STC SE02352CHInstallation of Challenger cleanable oil filter assemblyChallenger Aviation 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. · Lists O-235 SeriesSTC SE03232CHInstallation of Engine Preheat Kit p/n TA2925-1 for 115 volt applicationHartzell Propeller Inc.STC SE04577CHInstall an electronic engine ignition systemElectroair Acquisition CorpSTC SE01966WIUse of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft enginesGeneral Aviation Modifications Inc.STC SE00218NYReplacement of Lycoming starter with SKY-TEC 12 volt starter installed.Hartzell Engine Technologies, LLC · Lists O-235 SeriesSTC 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, LLC · Lists O-235 SeriesSTC SE1779NMInstallation of Precise Flight, Inc. Standby Vacuum System SVS IIIPrecise Flight IncSTC SE5743NMIntallation of adapter for externally mounted oil filter.Aviation Development CorporationSTC SE09492SCInstallation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013.Exxon Company USA · Lists O-235 SeriesSTC SE00350SEInstallation of sump mounted chip detector.Aviation Development CorporationSTC SE8023SWInstallation and usage of AEROSHELLShell Development Co · Lists O-235 SeriesSTC SE452NEInstallation and usage of 'Mobil AV 1' aviation oil.Mobil Research & Development Corp · Lists O-235 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 O-235 SeriesSTC SE5924SWInstallation of stainless steel replacement exhaust studs on AVCO engines.Perrigo & Steele Aircraft Engr Company · Lists O-235 SeriesSTC SE1976SWManufacture of new cylinder barrels and rebarreling with original cylinder head.Gary Aerospace Corp · Lists O-235 SeriesSTC SE5791SWInstallation of any or all engine components parts or modifications on Avco 0-235 series engines.Airmotive Engineering Corp · Lists O-235 Series
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