N28EN

STCs that may be installed · 19

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 = '3300435'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '54182')
    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.

Airframe · Enstrom Helicopter TH-28

STC SR04637CHReplacement of existing main ship battery with Lithium Ion Battery and installation of Annunciator Control PanelAirwolf Aerospace LLCSTC SH3319NMInstallation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,Precise Flight IncSTC SR02704SEInstallation and maintenance of the Sunspot 36 and 46 series lightsAeroLED's Holdings LLCSTC SR00359BOInstallation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights.Whelen Aerospace TechnologiesSTC SR02487AKInstallation of L-3 Communications Avionics Systems ESI-500 Standby Instrument SystemADS-B Technologies, LLCSTC SR02470AKInstallation of the L-3 Communications NGT -1000/2000/2500 ADS-B SystemADS-B Technologies, LLCSTC SR02471AKInstallation of the L-3 Communications NGT -9000/9000R ADS-B SystemADS-B Technologies, LLCSTC SR03465CHInstall Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-ECD-084-280, or AA-ECD-084-480Airwolf Aerospace LLCSTC SR02394AKReplacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting systemSeaplanes North LLCSTC SR03353CHInstallation of Aspen Avionics Evolution Primary and Multi-Functional Flight DisplaysAspenSTC IncSTC SA00068SEInstallation of fuel flow/pressure instruments. (W/TSIO-360-MB1)Electronics International Inc.STC SA00680SEInstallation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.Electronics InternationalSTC SR01430LAInstallation of Stainless Steel Skid shoes.Papas Gary Los Angeles Laboratories Inc.STC SA00061LAInstallation of JPI digital tachometer.J P InstrumentsSTC SA4302NMInstallation of Electronics Int'l digital automatic engine analyzer.Electronics International

Engine · Rolls-Royce 250-C20S

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