N198HM

STCs that may be installed · 36

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 = '3740001'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41552')
    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 · Garlick Helicopters UH-1B

STC SH3319NMInstallation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,Precise Flight IncSTC SH3744NMDual Battery InstallationWSH, LLCSTC SR00026DEInstallation of tailboom 24 inch plug extension, commercial style main rotor blades, and rotorhead.Midwest Aerospace TC LLCSTC SR00073DEReplacement of Lycoming T53-L-13 series powerplantMidwest Aerospace TC LLCSTC SR00119DEInstallation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003, and Control CablesMidwest Aerospace TC LLCSTC SR09167RCReplacement of tail rotor control roller chain.Midwest Aerospace TC LLCSTC SR09177RCModification of the vertical fin sparMidwest Aerospace TC LLCSTC SR09224RCModification of the lift beam on the Model UH-1HMidwest Aerospace TC LLCSTC SR02761LAInstallation of UH-1H composite main rotor blades on the UH-1B helicoptersNorthern X-Treme HelicoptersSTC SH5690NMInstallation of Advanced Technology Aircraft Co. engine barrier filter.WSH, LLCSTC SR02492LAInstallation of a Helicopter Technology Company main rotor blade assemblyHelicopter Technology CoSTC SR01039SEFabrication of tail boom mounted strakes in accordance with Master Drawing List Number BL-UH1H-01, Revision D, dated September 10, 2001, or later Federal Aviation Administration (FAA)-approved revision; and installation of this strake systemBLR Aerospace LLC.STC SR03408CHInstall Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-204-310-101-101 or AA-204-310-101-103Airwolf Aerospace LLCSTC SR02413LAInstallation of an AKV, Inc Exceedence and Trend Monitoring System kit P/N ETM1000AKV Inc.STC ST04270ATInstall the VTOL ASSALT V3 Windscreen Laminate KitVTOL LLCSTC SR00767SEFabrication of Helipro spar replacement systemVector Aerospace Helicopter Services USA Inc.STC SR02394AKReplacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting systemSeaplanes North LLCSTC SR01742NYInstallation of extended height landing gear.Dart Aerospace LimitedSTC SR02051LAInstallation of a VAn Horn Aviation Tail Rotor Blade.Van Horn Aviation LLCSTC SR09313RCFabrication, modification, and installation of a new vertical fin spar in accordance with Global Helicopter Technology, Inc., Drawing number VTF-030-802, Revision B, dated April 5, 2001, or later FAA approved revision.Global Spar LLCSTC SR09316RCFabrication, modification, and installation of a new vertical fin spar in accordance with Global Helicopter Technology, Inc., Drawing number VTF-030-801, Revision B, dated April 5, 2001, or later FAA approved revision.Global Spar LLCSTC SR01497ATManufacture of Windows in accordance with Aeronautical Accessories, Inc. Drawing List Report No. AA-97115, no revision, dated August 20, 1997, or later FAA approved revisions, and installation per Installation Instructions listed in that report.Bell Helicopter Textron Inc.STC SR01812ATManufacture of Flitestep in accordance with Aeronautical Accessories, Inc. Drawing List Report No. AA-97166, no revision, dated December 19, 1997, or later FAA approved revisions, and installation per Aeronautical Accessories, Inc. Report AA-97087, Revision B, dated December 18, 1997, or later FAA approved revisions.Bell Helicopter Textron Inc.STC SR01922ATManufacture of Locking Door Handle.Bell Helicopter Textron Inc.STC SR01923ATManufacture of Air Deflector.Bell Helicopter Textron Inc.STC SR01924ATManufacture of Low Skid or High Skid Landing Gear.Bell Helicopter Textron Inc.STC SR00103SEInstallation of Aviation Development Corporation oil filterAviation Development CorporationSTC SR01298NYInstallation of replacement crosstubes P/N D212-664.Dart Aerospace LimitedSTC SR00563NYInstallation of Skidtubes and associated saddlesDart Aerospace LimitedSTC SR01218ATManufacture of Flitestep.Aeronautical Accessories, Inc.STC SH2621SOModification of main rotor blades P/N 204-011-250-5 or P/N 204-011-250-113 for restricted category.Hill Mr. Jamie R.STC SA4302NMInstallation of Electronics Int'l digital automatic engine analyzer.Electronics International

Engine · Lycoming T-53 series

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