N722HT

STCs that may be installed · 29

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 = '4450003'
      UNION ALL SELECT stc_number, 2, 'engine', matched_model FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet' WHERE engine_model_code = '51504')
    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 · Helicopter Transport Services CH-54B

STC SR02807SEInstallation of a Fly Away Tool boxHelicopter Transport Services LLCSTC SR11923SEInstallation of Helicopter Transport Services, LLC Shock Absorber HTS-2000Helicopter Transport Services LLCSTC SR11810SEInstallation of Helicopter Transport Services, LLC External Load Indicating SystemHelicopter Transport Services LLCSTC SR02777SEInstallation of a Load BeamHelicopter Transport Services LLCSTC SR02754SEInstallation of External Cargo ContainerHelicopter Transport Services, LLCSTC SR02717SEInstallation of Helicopter Transport Services Remote Fuel Sump SystemHelicopter Transport Services LLCSTC SR09913ACInstallation of Composite Main Rotor BladeHelicopter Transport Services LLCSTC SR02684SEInstallation of Helicopter Transport Services, LLC (HTS) lightweight firefighting refill pumpHelicopter Transport Services LLCSTC SR02671SEInstallation of HTS Attachable Service PodHelicopter Transport Services LLCSTC SR00004SEFabrication and installation of Erickson fire fighting systemErickson Air Crane Inc. dba Erickson Air-CraneSTC SR00815SEFabrication and installation of Erickson Model Sea Snorkel systemErickson Air Crane Inc. dba Erickson Air-CraneSTC SR01209SEInstallation of Replacement Electric Starter for Auxiliary Power UnitHelicopter Transport Services LLCSTC SR01241SEInstallation of Concorde RG-390E Lead Acid BatteryHelicopter Transport Services LLCSTC SR02503SEInstallation of Additional Telemetry Unit (ATU)Helicopter Transport Services LLCSTC SR00928SEFabrication of Kawak Aviation Technologies, Inc. Model YB02854 Auxiliary Hydraulic SystemHelicopter Transport Services LLCSTC SR02055SEReplacement tail rotor blades, Part Numbers 65161-00001-041MII and/or 65161-00001-043MIIHelicopter Transport Services LLCSTC SH5653NMRe-mounting of the turbine engines and reinforcement of the associated fuselage support structure with Erickson detuned engine mounting system (DEMS).Erickson Incorporaated/dba Erickson Air-CraneSTC SR01084SEFabrication and installation of HTS-OCB-001 Electric Oil Blower AssemblyHelicopter Transport Services LLCSTC SR01268SEFabrication and installation of the Single Point Fixed Pendant.Helicopter Transport Services LLCSTC SR01279SEInstallation of the Aero-Craft Utility Hydraulic Pump, Part Number (P/N) AP6VSPLHelicopter Transport Services LLCSTC SR01376SEFabrication and installation of Helicopter transport Services, LLC offset pilot seat, offset collective control, and bubble doorHelicopter Transport Services LLCSTC SR01571SEFabrication and installation of Helicopter Transport Services, Inc. (HTSI) Automatic Flight Control System (AFCS)Helicopter Transport Services LLCSTC SR01741SEInstallation of an upgraded Fuel Quantity Indicating System.Helicopter Transport Services LLCSTC SR01839SERemove the components from the hydraulic sled at Station 380 and install on the sled at Station 435.5, and remove the sled at Station 380,Helicopter Transport Services LLCSTC SR02036SEModification of main rotor blade part number 6415-20601-041, -042, and -043Helicopter Transport Services LLCSTC SR02224SEInstallation of the Helicopter Transport Services, LLC (HTS) lightweight firefighting refill pump, Part Number HTS2-PUMPHelicopter Transport Services LLCSTC SR01618SEFabrication and Installation of Kawak Aviation Technologies Model 36100 Sea SnorkelHelicopter Transport Services LLCSTC SR00931SEFabrication of Simplex Model 314 Fire Attack SystemSimplex Manufacturing CompanySTC SA4302NMInstallation of Electronics Int'l digital automatic engine analyzer.Electronics International
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