N504AT
STCs that may be installed · 42
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 = '0390310'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '52251')
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 = '0390310'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '52251')
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 · Air Tractor AT-504
STC SA04484CHInstallation of a Reabe Aircraft Improvement Power Gate Control SystemSTC SA04837NYInstallation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lightsSTC SA02019SE-DInstallation of Garmin Model GTN 625/635/650; 725/750 Navigation SystemSTC SA12204WIWing Spar Cap manufacturing process changeSTC SA03040CHInstallation of a digital payload hopper quantity and spray boom pressure indicating systemSTC SA04046CH PAGE 1Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500)STC SA04676CHInstallation of a True Quantity Gauge SystemSTC SA02266SEInstallation of a Lever Throttle QuadrantSTC SA02444AKApproval of the L-3 Communications NGT 9000/9000R ADS-B system installedSTC SA01714WIInstallation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R with ADS-B Out functionality in select airplanes installed with G950/G1000 systems.STC SA02135SEInstallation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data)STC SA04165NYInstallation of Latitude Technologies Skynode S200 Satcom system must be performedSTC SA01323CHInstallation of a ground single point fueling system.STC SA04145NYInstallation of the Flight Data Acquisition Storage and Transmission System (Fast)STC SA01745WIInstallation of a Cable Cutter System on the Main Landing GearSTC SA01845WIInstallation of a Center WindshieldSTC SA09873ACInstallation of Night Vision Goggle (NVG) compatible lighting system in Air Tractor, Inc.STC SA00382BOInstallation of Globalstar Antenna and Cradle provisions to support a Globalstar GPS-1700 in non-composite airplanesSTC SA02276AKInstallation of AMSAFE Aviation Inflatable RestraintsSTC SA02119SE PAGE 1Installation of Garmin GDL 88 ADS-B UAT Transceiver SystemSTC SA03439CHInstallation of a Hartzell Propeller model .HC-B4TN-3C/T10702NS (4 Blade)STC SA02442AK PAGE 1Approval of the L-3 Communications NGT 2000/2500 ADS-B systemSTC ST03554CHInstallation of Rotary Gatekeeper and provisions equipmentSTC SA00403SEInstallation of Vortex Generators on the wingsSTC SA02985CHInstallation of a Cool Start System in accordance with Installation Instructions , Revision A, dated April 14, 2011, or later FAA Approved revision.STC SA00068SEInstallation of fuel flow/pressure instruments. (W/TSIO-360-MB1)STC SA02110CHInstallation of a Time Trac Data RecorderSTC SA2693NMInstallation of Electronics International digital volt/amp gauges and accessories.STC SA04677CHInstallation of a Powered Hopper Lid and Auger System
Engine · Pratt & Whitney Canada PT6A-34AG
STC SE00002ENInstructions for Continued Airworthiness for the PT6A-34, -34AG, -34B, -36, -114, -114A, -116, -135, and -135A engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals.STC SE00014ENInstallation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models.STC SE00020ENInstallation of the Pratt & Whitney Engine Services, Inc. TrendCheck/ TrendCheck Plus Engine Monitor Kit P/N TREND-K-010-1STC SE2960SOInstallation of an oil filler cap safety adapter.STC SE615GLIncorporation of a fuel flow transducer.STC SE01805NYInstallation of Fuel Nozzle Adapters using studs and nuts.STC SE09286SCInstallation of an alternate gas generator case.STC SE09257SCConvert P&W Engine Models PT6A-15AG, -27, and -28, into PT6A-34 configuration.STC SE659NEInstallation of oil tank filler neck check valve, P/N TSA-76A.STC SE539NEModification of compressor turbine sealing segments to incorporate honeycomb material on the inside diameter thereby providing an abradable surface for turbine blade contact.STC SE5601SWReplacement splined end and oil mist lubrication on accessory drive gearshaft.STC SE1165EAAssembly and installation of AW10262 wet spline starter gear seal.STC SE4607SWRevise the starter-generator drive spline to provide lubrication with engine oil.