N21221
STCs that may be installed · 359
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 = '1181420'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '52232')
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 = '1181420'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '52232')
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 · Bell 212
STC SR09356RCInstallation of an Airborne Video System (AVS).STC SH3512SWInstallation of freon air conditioning system, electrically driven.STC SH5949SWInstallation of nine place forward facing seats.STC SH7956SWInstallation of a fixed hoist.STC SR09162RCInstallation of a 6 Place EMS Litter systemSTC SR03859NYInstallation of Baggage Compartment Protection KitSTC SR01186ATInstallation of replacement fuel cap or locking fuel cap.STC SH3886SWInstallation of Rappell System.STC SR03752NYInstallation of Main Rotor Tie DownSTC ST04270ATInstall the VTOL ASSALT V3 Windscreen Laminate KitSTC SR01884ATInstallation of Retractable Hardpoints SystemSTC SR03503NYInstallation of an AEM Corp. Master Caution PanelSTC SR02407SEInstallation of Geneva Aviation 28 - 14 VDC Power ConverterSTC SH7763SWInstallation of rotor disc and underfuselage recognition lightsSTC SR03659NYInstallation of NAT AMS43 TSO Audio SystemSTC SR03512NYrbine Temperature, Fuel Pressure, Dual Ammeter, Dual Voltmeter and Gas Producer Tachometer indicator gauge replacementsSTC SR03497NYInstall Honeywell (Bendix/King) KRA 405B radar altimeter systemSTC SR00876SEFabrication of either the Ag-Air Systems Model 35000 or Model
35250 Auxiliary Hydraulic Power Take Off SystemSTC SR09646RCInstallation of Night Vision Imaging System (NVIS)/Night Vision Goggles (NVG) Cockpit LightingSTC SH3809SWInstallation of tail light fairing assembly, ERA Dwg. 41233-100-100; detail of tail light fairing assembly on ERA Dwg. 41233-100-001.STC SR03371CHInstallation of NASI Supplemental Air Conditioning ModuleSTC SH3889SWInstallation of 155 gallon capacity external auxiliary fuel system on high skid landing gear configured helicopter or 145 Gallon capacity external auxiliary fuel system on low skid landing gear configured helicopter.STC SH7689SWInstallation of ERA replacement inlet duct.STC SH7934SWInstallation of an auxiliary generator power system.STC SH7955SWInstallation of Fairchild cockpit voice recorder model GA100.STC SR09061RCInstallation of external auxiliary fuel system.STC SH8326SWInstallation of an avionics shelf.STC SR02707NYInstallation of Marathon PC-251 or KGS SPC-10 Solid State InvertersSTC SR00410NYCargo Mirror and Pulse Light InstallationSTC SR02265NYInstallation of Pedal Extensions.STC SR03373NYInstallation of a Survey System (Structural & Electrical Power Provision)STC SR02989NYInstallation of the Cargo Hook RetainerSTC SR03348NYInstallation of Aft Cabin Bulkhead Protector KitSTC SR01742NYInstallation of extended height landing gear.STC SR03339NYInstallation of Latitude Technologies IONODE Flight Data Monitoring SystemSTC SR09181RCFabrication of Simplex Model 304 fire attack system.STC SR02843NYInstallation of Sliding Door Pop Out WindowsSTC SH2820SOReplacement of an emergency floatation supply bottle.STC SR02276SEFabrication of Simplex Model 204 Agricultural Spray SystemSTC SH3184SOFabrication and installation of a Frahm vibration absorber.STC SH3316SOInstallation of pushout window assembly.STC SH3712SWInstallation of replacement windshield.STC SH5689SWInstallation of retrofit kit, push out windowSTC SR01853NYInstallation of a SkyTrac ISAT-100 / ISAT-200 Airborne Position/Data CommunicatorSTC SH449ALFabrication and installation of Airglas Engineering Company, Inc. P/N L8500A-1 left ski and P/N L8500A-2 or P/N L8500R-2 right skiSTC SH5805NM-DEngine fuel purge system.STC SH8770SWInstallation of EMS seatsSTC SR03100NYInstallation of an Electric Attitude IndicatorSTC SR00632SEFabrication of Mechanical Specialties, Inc. Model 606 cargo hook in accordance with FAA approved Mechanical Specialties Master Drawing List No. 606 MOL, Revision "C," dated August 6, 1998, or later FAA approved revision: and installation of this cargo hookSTC SR02126SEInstallation of the MECHANICAL SPECIALTIES, Model # UH606 in accordance with document # UH606-100-ICAW paragraph 6, Revision A, dated November 09, 2008, or later FAA approved revision. Manufactured in accordance with Master Document list MDL-205-60-111, Revision A, dated April 9, 2009, or later FAA approved revision. Maintained in accordance with document # UH606-100-ICAW Revision A, dated November 09, 2008, or later FAA approved revision.