N421YP

STCs that may be installed · 279

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 = '2076014'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '17035')
    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 · Cessna 421B

STC SA01800SEFabrication and installation of new or replacement of existing instrument panel lights dimmer control.TCW Technologies, LLCSTC SA01861SEFabrication and installation of Landing Light ControllerTCW Technologies, LLCSTC SA02279ATInstallation of a Boom Beam bulb, starter, and ballastWhelen Aerospace TechnologiesSTC SA04837NYInstallation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lightsAeroLED's Holdings, LLCSTC SA02019SE-DInstallation of Garmin Model GTN 625/635/650; 725/750 Navigation SystemGarmin International Inc.STC SA800EAInstallation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power suppliesWhelen Aerospace TechnologiesSTC SA00079NYInstallation of Airwolf remote mounted engine oil filter kit AFC-K008 on single and multi engine fixed wing light aircraft incorporating Teledyne Continental reciprocating engines of 450 horsepower or less.Airwolf Filter CorporationSTC SA02511SEInstallation of replacement fuel quantity indicator sending unit(s)CiES Inc.STC SA5846NMInstallation of wing tank flexible fuel cells.Aerosport Fuel Cells, LLCSTC SA5581SWInstallation of ALCOR true-flow/ totalizer systemAlcor LLC · Lists 421 SeriesSTC SA02731SEInstallation of Luma Technologies LT-4300 Series LED Display Panel and/or LT-4302 LED Gear Status AnnunciatorLuma Technologies LLCSTC SA02738CHInstallation of L-3 Communications Avionics SystemsAcron Aviation Inc.STC SA04046CH PAGE 1Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500)Acron Aviation Inc.STC SA02386AKReplacement of existing landing and/or taxi light reflector and bulbs with Light Emitting Diode (LED) lighting systemsAeroLED's Holding LLCSTC SA02658SEInstallation of Garmin GI 275 Multi-Function Display SystemGarmin International Inc.STC SA02571SEInstallation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).Garmin International Inc.STC SA02532ATInstallation of subject Michelin tires on appropriate aircraft. For Michelin 5, 6, 8, and 10-inch rim diameter tires on General Aviation Aircraft.Michelin North America Inc.STC SA00756DEInstallation of Automatic Dependent Surveillance Broadcast (ADS-B) Out Equipment using a Trig Avionics TT22 Transponder and an approved Global Positioning System (GPS) Position SensorPeregrineSTC SA02010WIInstallation of the Mid-Continent Instruments & Avionics MD23 FLEX Custom Function Display (CFD)Mid-Continent Instruments and AvionicsSTC SA197GLInstall Cleveland conversion kit P/N 199-76.Kaman Corporation Aircraft Wheel and Brake LLCSTC SA01967WIUse of GAMI G100UL High Octane Unleaded AvgasGeneral Aviation Modifications Inc.STC SA02203AKInstallation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV).Genesys Aerosystems Inc.STC SA02254AKInstallation of "Single Screen", "2 or 3 Screen", "Dual Screen", or "4 or 6 screen"Genesys Aerosystems Inc.STC SA02444AKApproval of the L-3 Communications NGT 9000/9000R ADS-B system installedADS-B Technologies LLCSTC SA4270SWMount collision avoidance lights in engine nacelle.Johnson Aviation ProductsSTC SA09856ACInstallation of BendixKing Aerowave 100 In-flight Data Link System for non-essential, non-required aircraft Cabin Systems & EquipmentsHoneywell International Inc (Bendix King)STC SA11174SC PAGE 1Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systemsHoneywell International Inc (Bendix King)STC SA02265SEInstallation of a camera housingAirborne Sensor LLCSTC SA01316LAInstallation of Sandel Avionics Terrain Awareness and Warning System.Sandel Avionics LLCSTC SA10236SCInstallation of a GDC 31 Roll Steering ConverterDAC International IncSTC SA03317CHInstallation of Max-Viz EVS-600 Enhanced Vision SystemPECO IncSTC SA02268CHInstallation of Airwolf Filter Corp. Air Oil SeparatorAirwolf Filter CorporationSTC SA00998WI-DInstallation of Bendix/King KMD 550/850 Multi-Function Display, with optional KLN 94 Global Positioning System, KGP 560 General Aviation Enhanced Ground Proximity Warning System, RDR 2000 Weather Radar System and KMH 880 Multi-Hazard Awareness System or KTA 870 Traffic Awareness System.Honeywell International IncSTC SA952CEInstallation of King Radio Model KFC-300 automatic flight control system.Honeywell International IncSTC SA4410NMONE ONLY STC, SN 421B0205, N5962M; Installation of Sperry Model GH14B Gyro HorizonHoneywell International IncSTC SA987CEInstallation of Sperry SPZ-200/ STARS IVC automatic flight control system with optional Sperry AA-220/ RT-220 radar altimeter.Honeywell International IncSTC SA01452CHInstallation of an air ambulance conversion kit.Med-Pac Inc.STC SA01714WIInstallation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R with ADS-B Out functionality in select airplanes installed with G950/G1000 systems.Garmin International IncSTC SA01750SEFabrication and Installation of Dahlia DoublerFliegen Works Inc.STC SA01751SEFabrication and Installation of Panida DoublerFliegen Works Inc.STC SA01752SEFabrication and Installation of Panida Doubler.Fliegen Works Inc.STC SA2091WEInstallation of air conditioning systemAir Comm CorporationSTC SA8RMInstallation of a vapor cycle air-conditioning systemAir Comm CorporationSTC SA00344BO PAGE 1Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.Whelen Aerospace TechnologiesSTC SA615EAInstallation of a Whelen Anti-Collision Strobe Light System as replacement for originally installed anti-collision lights.Whelen Aerospace TechnologiesSTC SA00057SEInstallation of emergency medical stretcher, oxygen, and electrical systems.LifePort LLCSTC SA00571SEReplacement of certain BF Goodrich pneumatic deicer boots.SMR Technologies IncSTC SA01213CHInstall air ambulance conversion in accordance with Spectrum Aeromed Inc. Drawings as listed on AML SA01213CH, or later FAA approved revision.Spectrum Aeromed LLC dba Spectrum AeromedSTC SA00744DEInstallation of the Automatic Dependent Surveillance Broadcast (ADS-B) Out Equipment using a Trig Avionics TT31 Transponder and an approved position sensorPeregrineSTC SA00765DEInstallation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensorPeregrine
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