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.
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_numberRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Airframe · Garlick Helicopters UH-1B
STC SH3319NMInstallation of Precise Flight Pulselite Control Unit in the
Landing /Taxi Recognition Visual Control Light system,STC SH3744NMDual Battery InstallationSTC SR00026DEInstallation of tailboom 24 inch plug extension, commercial style main rotor blades, and rotorhead.STC SR00073DEReplacement of Lycoming T53-L-13 series powerplantSTC SR00119DEInstallation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003, and Control CablesSTC SR09167RCReplacement of tail rotor control roller chain.STC SR09177RCModification of the vertical fin sparSTC SR09224RCModification of the lift beam on the Model UH-1HSTC SR02761LAInstallation of UH-1H composite main rotor blades on the UH-1B helicoptersSTC SH5690NMInstallation of Advanced Technology Aircraft Co. engine barrier filter.STC SR02492LAInstallation of a Helicopter Technology Company main rotor blade assemblySTC 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 systemSTC SR03408CHInstall Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-204-310-101-101 or AA-204-310-101-103STC SR02413LAInstallation of an AKV, Inc Exceedence and Trend Monitoring System kit P/N ETM1000STC ST04270ATInstall the VTOL ASSALT V3 Windscreen Laminate KitSTC SR00767SEFabrication of Helipro spar replacement systemSTC SR02394AKReplacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting systemSTC SR01742NYInstallation of extended height landing gear.STC SR02051LAInstallation of a VAn Horn Aviation Tail Rotor Blade.STC 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.STC 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.STC 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.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.STC SR01922ATManufacture of Locking Door Handle.STC SR01923ATManufacture of Air Deflector.STC SR01924ATManufacture of Low Skid or High Skid Landing Gear.STC SR00103SEInstallation of Aviation Development Corporation oil filterSTC SR01298NYInstallation of replacement crosstubes P/N D212-664.STC SR00563NYInstallation of Skidtubes and associated saddlesSTC SR01218ATManufacture of Flitestep.STC SH2621SOModification of main rotor blades P/N 204-011-250-5 or P/N 204-011-250-113 for restricted category.STC SA4302NMInstallation of Electronics Int'l digital automatic engine analyzer.
Engine · Lycoming T-53 series
STC SE00585ATInstallation of Aeronautical Accessories, Inc. PC Safety Valve Kit.STC SE00028ENInstallation of Pratt & Whitney Engine Services Inc. SmartCycle Plus Engine Monitoring System, P/N EMU-K-010-1 on specified T53 engine models.STC SE00029ENInstallation of Pratt & Whitney Engine Services Inc. SmartCycle Plus Engine Monitoring System, P/N EMU-K-010-1 on specific T53 engine models.STC SE01440NYConversion of Honeywell engine model T5313B to Honeywell engine model T5317A utilizing Aero Design, Ltd. conversion instructions C1437.02 dtd 4/30/01.