N521
STCs that may be installed · 401
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 = '1145005'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '59997')
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 = '1145005'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '59997')
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 · Airbus Helicopters AS350B3
STC SR00529DE-DInstallation of a Liquid Oxygen (LOX) SystemSTC SR01863LAInstallation of Garmin GDL 90 UAT Sensor and Model GSL 71 UAT Control Panel.STC SR00534DE-DInstallation of Aft Jump SeatSTC SR02166NYInstallation of Air Cruisers Company Emergency Flotation SystemSTC SR01864LAInstallation of Garmin Model GNS 480.STC SR01486NYInstallation of Spacecam RAMS camera mount.STC SH856NEInstallation of Dart Aero Equipment Inc. cargo-mirror.STC SR02185NYRear Seat Belt Installation.STC SR02141NYInstallation of Forward Short High Visibility Doors.STC SR00458NYInstallation of a right-hand litter kit.STC SR01351NYInstallation of Settling Protectors in accordance with Eurocopter Canada Limited Installation Procedure No. IP-ECL-43, Rev.3, TCCA approved May 14, 2004, or later TCCA approved revisions.STC SR00645NYInstallation of belly-mounted supplemental anti-collision light.STC SH967NEInstallation of left hand and/or right hand access step(s).STC SR01692LAInstallation of an Internal Load Attaching Means.STC SR01694LAInstallation of an External Load Attaching Means.STC SR01119LAInstallation of a camera mount system.STC SR01107NYInstallation of High Visibility Composite main and aft cabin doors.STC SR01058LAInstallation of a camera mount system.STC SR09129RC-DInstallation of a Wescam 12 Thermal Imager/Color Camera System.STC SR09279RC-DInstallation of a full width replacement instrument panel.STC SR00811NYInstallation of Technisonic Industries Limited TFM-138 series transceiver models.STC SR00684SEFabrication of Simplex Fire Attack SystemSTC SR09396RCInstallation of cockpit infrared filter system.STC SR00534DEInstallation of Aft Jump Seat in accordance with Air Methods Master Drawing List MDL-741-9011, Revision IR, dated November 20, 2003, FAA approved December 5, 2003 or later FAA approved revision.STC SR00851LAInstallation of Tyler A-S straight tube camera mount.STC SR01289SEFabrication of Simplex Pitot Static Relocation Kit Number 300-106 008-001STC SR01105NYInstallation of Belly/Floor vertical reference window.STC SR01810NYInstallation of Comm/Nav System. Limited to installation on serial number 3461 ONLY.STC SR01532LAInstallation of SkyPod V video downlink.STC SR00529DEInstallation of a Liquid Oxygen (LOX) system. STC SR00308DE is a required installation for this STC.STC SR09267RC-DInstallation of a pilot armrest or a copilot armrest or for both armrests.STC SH2875SW-DInstallation of an electric turn and slip indicator. VFR Operation Only-Not Suitable for IFR. FADEC testing is required for each AS350B3 installation.STC SH4258SW-DInstallation of 2-inch diameter turn and slip indicator.STC SH4297SW-DInstallation of Pilot's Floor window.STC SH4334SW-DInstallation of strobe anti-collision light installation and/or supplemental strobe light.STC SH4590SW-DInstallation of external cargo baskets.STC SH4636SW-DInstallation of tail rotor guard.STC SH5117NM-DRelocation of battery to tailboom.STC SH7000SW-DInstallation of SFIM two axis VFR autopilot.STC SH7007SW-DInstallation of an extended pilot and/or copilot seat rails with/without quick change seat optional configuration.STC SH7328SW-DRelocation of aircraft dataplate.STC SH7351SW-DInstallation of door closure/hold cylinder.STC SH7692SW-DInstallation of an enlarged instrument panel.STC SH7693SW-DInstallation of six (6) heavy duty tiedown rings in the aft cabin floor.STC SR09106RC-DInstallation of a cabin/cockpit night lighting system.STC SR09124RC-DOutboard Extension of Left Hand and Right Hand Anti-Torque Pedals, one inch.STC SR09131RC-DInstallation of a quick disconnect copilot collective control.STC SR09132RC-DRemoval of the existing map and emergency light and installation of an overhead rear aido box with a combination of copilot/pilot Sodeberg map lights configuration.STC SR09135RC-DExtension of seat rails for pilot/copilot or individually with Eurocopter Reinforced Pilot/Copilot seats attachment per AEC Drawing List 350A82-1755 latest FAA approved revision.STC SR09269RC-DInstallation of a U7500, or an Ultra Media LE, or a Safire, or a Star Safire infrared imaging system.