N204HT
STCs that may be installed · 22
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 = '1280001'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41551')
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 = '1280001'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '41551')
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 · Hawkins & Powers UH-1B
STC SR12332SEInstallation of Mechanical Specialties, LLC Human External Cargo (HEC) and non-HEC Hook SystemSTC 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 SR09177RCModification of the vertical fin sparSTC 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 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 SR01298NYInstallation of replacement crosstubes P/N D212-664.STC SH201WEInstallation of stirrup assemblies to directional control pedals for operation by handicapped pilot. (US ARMY OH-13E 205A)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.