N998LM

STCs that may be installed · 246

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 = '7103124'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '52142')
    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 · Piper PA-31T

STC SA1340SWFour-place couch.Ward Intl Aircraft Service · Lists PA-31 SeriesSTC SA2105WEInstallation of Model EGT-3 exhaust gas temperature monitor(with rising temperature alarm). (DC-6B (NAVY R6D-1Z) 680)K S Avionics, Inc · Lists PA-31 SeriesSTC SA741EAInstallation of co-pilot door.Reading Avn Svc Inc · Lists PA-31 SeriesSTC SA613EAInstallation of nine seats.Reading Avn Svc Inc · Lists PA-31 SeriesSTC SA744EAModification of toilet seat hassock and installation of safety belt.Reading Avn Svc Inc · Lists PA-31 SeriesSTC SA1569WEInstallation of windshield wiper system.Alco Controls Corporation · Lists PA-31 SeriesSTC SA1651WEInstallation of ski carrying pod under fuselage at wing root.Melridge Aviation Co · Lists PA-31 SeriesSTC SA529EAInstallation of kit for radar antennaChamberlain Engr Corporation · Lists PA-31 SeriesSTC SA546EAIncorporation of opening in lower surface of fuselage aft of front spar.E W Wiggins Airways Inc · Lists PA-31 SeriesSTC SA622EAIncorporation of camera hatch and mountings to accommodate Zeiss RMK A15/23 camera.Atlantic Aviation Corporation · Lists PA-31 SeriesSTC SA908SWAir conditioner.Philpot R D Ind Inc · Lists PA-31 SeriesSTC SA986SWBaggage lockers in revised aft nacelle fairings.Nayak Aviation Corp · Lists PA-31 SeriesSTC SA00765DE PAGE 1Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensorPeregrineSTC SA02019SE-D PAGE 2Installation of Garmin GTN 6XX/7XX Navigation SystemGarmin International IncSTC SA02153LA-DInstallation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) SystemGarmin International IncSTC ST01085LAInstallation of the VNS 1000 Voice Navigation System.VNS IncorporatedSTC SA00281BO PAGE 3Installation of Avidyne Corporation MLX770 MultiLink Broadcast Transceiver P/N 700-00163-( ), Sensor Systems Inc. Antenna P/N S67-1575-109, or equivalent, and optional Avidyne Mounting Tray P/N 700-00165-000Avidyne CorporationSTC SA02153LAInstallation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) System.Garmin AT Inc.STC SA01933LAInstallation of Garmin Model 400W / 500W Series GPS-WAAS Navigation SystemGarmin AT Inc.STC SA01229SEInstallation of CNX80 GPS WAAS Navigator with integrated VHF Navigation and Communication radios.UPS Aviation TechnologiesSTC SA2350NMInstallation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories.Electronics International

Engine · Pratt & Whitney PT6A-28 series

STC SE000ENEngines will be maintained IAW 'Maintenance or Reliable Engines(MORE) Program,' Rev 4, dated 8/16/95.MORE Company IncSTC SE10947SCThe conversion of the Pratt & Whitney Canada, Model PT6A-21 to a PT6A-28 turboprop enginePrime TurbinesSTC SE10552SCConversion of Pratt & Whitney Canada Corp. Model PT6A-27 or -28 to a Model PT6A-34 turboprop engine.Prime Turbines LLCSTC SE02170ATInstallation of Pc Safety Valve KitBell Helicopter Textron Inc.STC SE02688NYThis modification would incorporate improved compressor components into the Pratt & Whitney PT6A-28 engine from the PT6A-135A engine.Standard Aero LimitedSTC SE00014ENInstallation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models.Pratt & Whitney Engine Services Inc.STC SE00020ENInstallation of the Pratt & Whitney Engine Services, Inc. TrendCheck/ TrendCheck Plus Engine Monitor Kit P/N TREND-K-010-1Pratt & Whitney Engine Services Inc.STC SE2960SOInstallation of an oil filler cap safety adapter.Jet Avion CorporationSTC SE02273NYConversion of a Pratt & Whitney Canada PT6A-27 or PT6A-28 engine to operate as a PT6A-34 engine.Atlantic Turbines International Inc.STC SE615GLIncorporation of a fuel flow transducer.Shadin AvionicsSTC SE01805NYInstallation of Fuel Nozzle Adapters using studs and nuts.Atlantic Turbines International Inc.STC SE00691NYConversion of engine models PT6A-27 and -28 to Model PT6A-34 as described in Temporary Overhaul Data Revision.Standard Aero LimitedSTC SE09257SCConvert P&W Engine Models PT6A-15AG, -27, and -28, into PT6A-34 configuration.Covington Aircraft Engines, Inc.STC SE659NEInstallation of oil tank filler neck check valve, P/N TSA-76A.Aviation Components SupportSTC SE1122EARepair of combustion chamber small exit duct, P/N 3012060.Airwork CorporationSTC SE7677SWModifiy the P&W Canada PT-6A-27, -28, -15AG to the PT6A-34 configuration.Airforce Turbine ServiceSTC SE1269EAStripping and recoating of compressor turbine blades, P/N 3023401, with Walbar Metals, Inc.Airwork CorporationSTC SE386NEInstallation of Turbo Products PMA parts.Audco CorporationSTC SE241NEConversion of engine Models PT6A-27 and -28 to 01/157/3.Airwork CorporationSTC SE5601SWReplacement splined end and oil mist lubrication on accessory drive gearshaft.Aviall of Texas, IncSTC SE79NEConversion to an aircooled compressor turbine vane ring configuration.Airwork CorporationSTC SE1165EAAssembly and installation of AW10262 wet spline starter gear seal.Airwork CorporationSTC SE4607SWRevise the starter-generator drive spline to provide lubrication with engine oil.Aviall of Texas, IncSTC SE4570SWRevise accessory drive spline, P/N 3008181.Aviall of Texas, IncSTC SE12CEInstallation of Gits Brothers Manufacturing Company dipstick filler cap assembly P/N 02297-2000.Gits Brothers Mfg Co
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