N56DH
STCs that may be installed · 108
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 = '4500305'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '33841')
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 = '4500305'
UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '33841')
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 · Israel Aircraft Industries 1125 WESTWIND ASTRA
STC ST01305WI-DModification of a Collins ALT-50A or ALT-55B Radio Altimeter system installation to a Collins ALT-1000 or ALT-4000 Radio Altimeter system installation in accordance with Collins Drawing Index as listed on AML No. ST01305WI-D, Revision -, or later FAA approved revision.STC ST12461IBInstallation of Cockpit Voice Recorder with optional RIPS UpgradeSTC SA2622NMInstallation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101)STC ST03885ATInstallation of an Avionica, Inc. avCM Cellular ModuleSTC ST03292CHActivation of an 802.11 a/b/g/n WiFi SystemSTC SA11300DSUpgrade previously installed Collins Aerospace Radar AltimeterSTC ST02472ATInstallation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIIISTC ST03424CHCertification of Automatic Dependent Surveillance - Broadcast (ADS-B) Out System with Rockwell Collins TDR-94/-94D TranspondersSTC ST04575ATInstallation of the Rockwell Collins ALT-1000+/ -4000+ with 5G FilteringSTC ST02004WIInstallation of the Garmin GI-275 Instantaneous Vertical Speed Indicators (IVSI)STC ST01523WIModel Westwind Astra 1125 (S/N -004 thru -041)Installation of Universal Avionics EFI-890R Flat Panel EFIS System with Optional Vision 1 Synthetic Vision 1 System, Optional Universal Avionics Application Server Unit, Optional WSI AV300/350 Weather Data Link System, and Thommen AC-32 Air Data ComputerSTC ST04177ATInstallation of a Talon Aerospace LED Replacement General Purpose LampsSTC ST02635LAModification to replace the existing Mode S Transponder system with the ACSS NXT-600 Mode S Transponder with ADS-B OutSTC ST00882DEInstallation of Becker Avionics BXT6553 transponderSTC ST00061SEInstallation of emergency medical stretcher, oxygen, and electrical systems.STC ST04340NYInstallation of TCAS 7.1 (ACAS II) upgrade of Prior Existing TCAS 7.0STC ST00835DEInstallation of Automatic Dependent Surveillance - Broadcast (ADS-B) Out and In functionality using the Garmin GTX 335R and GTX 345R Transponders plus qualified position sensorSTC SA4999NMInstallation of lifeport patient loading and support system.STC SA01213CHInstall air ambulance conversion in accordance with Spectrum Aeromed Inc. Drawings as listed on AML SA01213CH, or later FAA approved revision.STC ST04294NYReplacement of certain Goodrich pneumatic de-icer bootsSTC ST00790DEInstallation of BendixKing CAS 67B Traffic Alert and Collision Avoidance System (TCAS) II Version 7.1STC ST02636LAModification to upgrade the existing XS-950 Mode S Transponder system to add ADS-B OutSTC ST00347BOModification to upgrade a BendixKing CAS 67A TCAS II system to CAS 67B TCAS II Change 7.1STC ST00373BOInstallation of Rockwell Collins TDR-94D Transponders with ADS-B OutSTC ST02499AKApproval of the Thomas Global Systems TFD8601Active Matrix Liquid Crystal Display installedSTC ST03262CHInstallation of a Data Link Communication System supporting Air Traffic Services (ATS) utilizing SATCOM with a compliant Communications Management UnitSTC ST11071SCDemonstration of aircraft critical equipment and antenna systems tolerance of radio frequency interference (RFI) from intentional or spurious transmissions from certain Portable Electronic Devices (PEDs)STC ST00304WIInstallation of Keddeg Company 21BC113 coaleser assembly.STC ST02609LAModification to replace the existing Mode S Transponder system with ACSS NXT-700 Mode S Transponder with ADS-B OutSTC ST03776NYModification to upgrade existing Rockwell Collins TCAS (Model: TTR-920, TTR-921, and TTR-4000) at VERSION 7.0 to Rockwell Collins TCAS (Model: TTR-921, TTR-4000, and TTR-4100) at VERSION 7.1 (ACAS II)STC ST00881WI-DModification of a TCAS II system installation to Change 7.0 or Change 7.1STC ST00619WIInstallation of flap/slat actuator heatersSTC ST01855CH-DInstallation of Honeywell N1 Digital Electronic Engine Controls (DEEC)STC ST01202WI-DModification of an existing FAA approved Collins TPR-720, TPR-900 or TPR-901 Mode S transponder installation in Part 25 Aircraft using Collins Drawing Index as listed on AML No. ST01202WI-D, latest FAA approved revision.STC ST00673WI-DModification of Collins VHF-22A/VHF-22B VHF COMM Receiver Transmitter with CTL-22 Control Pro Line II System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II System installation.STC ST00682WI-DModification of Collins VHF-20/VHF-20A/VHF-20B VHF COMM Receiver Transmitter with CTL-20 Control Pro Line I System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II System Installation in accordance with Collins Installation Instructions as listed on AML No. ST00682WI-D, Revision -, or later FAA approved revisions.STC ST00953CHInstallation of Collins TCAS-94 Traffic Alert and Collision Avoidance System (TCAS II).STC ST01542WI-DModification of a Rockwell Collins, Inc. AFD-3010 and AFD-3010E Adaptive Flight Display Installation in Part 25 Aircraft.STC ST00790WI-DInstallation of Allied Signal MK VII Enhanced Ground Proximity Warning System (EGPWS) with Windshear in the Israel Aircraft Industries, LTD, Model 1125 Westwind Astra Airplanes.STC ST01184WI-DInstallation of a Universal Avionics corporation Terrain Awareness and Warning System (TAWS).STC ST02540AT-DInstallation of replacement fuel tank sealant systemSTC ST01141SEGroup aircraft approval for Reduced Vertical Separation Minimum (RVSM).STC ST01332WI-DInstallation of a Collins IDS-3000 Integrated Display System with IFIS-5000 Integrated Flight Information System and XM Data Receiver.STC ST02627NYUpgrade of Universal UNS-1C to UNS-1CSTC ST02146NYInstallation of EMS Technologies Ltd. Cabin Network Xcelerator (CNX).STC ST00808WI-DInstallation of cabin interior.STC ST02248NYInstallation of EMS HSD-64, HSD-128, HSD-HCM, and HSD-XSTC ST01034SEONE ONLY STC, S/N 025: Non-group individual aircraft approval for Reduced Vertical Separation Minimum (RVSMSTC ST01060WI-DInstallation of Dual Static Source Error Corrected Altimeter System.STC ST01445WI-DInstallation of dual Collins AHS-1000S Attitude Heading System in the Gulfstream Aerospace LP, 1125 Westwind Astra Airplanes.