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.

Airframe · Airbus Helicopters AS350B3

STC SR00916NYInstallation of LH and RH rear cross tube mounted maintenance steps.Airbus Helicopters Canada LimitedSTC SR03572NYInstallation of a Standard Interior ModificationAirbus Helicopters Canada LimitedSTC SR03448NYInstallation of a TDFM-9000 Multiband TransceiverTechnisonic Industries LimitedSTC SR03538NYInstallation of the PA100 PUREair SystemDart Aerospace LimitedSTC SR00213NYInstallation of Heli-Utility Basket and Long Cargo TubeDart Aerospace LimitedSTC SR00009RDInstallation of a Sand FilterDart Aerospace LimitedSTC SR03554NYInstallation of Aspen EFD1000H/PFD500H Electronic Flight DisplaysAeronav Avionics IncSTC SR00028NYThe installation of BearpawsDart Aerospace LimitedSTC SR03539NYInstallation of Garmin G500H Flight Display System.Maxcraft Avionics Ltd.STC SR03534NYInstallation of a 28VDC Utility SystemCanadian Helicopters LimitedSTC SR03524NYInstallation of a MD302 Standby Attitude ModuleMaxcraft Avionics Ltd.STC SR03387NYInstallation of AVEO Engineering LED anticollision light, LED position/strobe lights and LED tail position lightsHeliProducts Industries Ltd.STC SR02394AKReplacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting systemSeaplanes North LLCSTC SR01390SEInstallation of a Supplemental Lighting System.Aviation Specialties Unlimited Inc.STC SR00771DEInstallation of a cargo pod on the left side of the landing gearAirborne Systems OAL, LLCSTC SR09647RCInstallation of Bubble Windows in left hand or right hand side crew doorsTech-Tool Plastics, Inc.STC SR00115DEInstallation of a Video Camera System.RSG Products IncSTC SR00811SEInstallation of an engine air filter.AerometalsSTC SR01049SEInstallation of an engine air filterAerometalsSTC SH4776NMInstallation of replacement transmission cowling panels.Apical Industries, Inc. dba Dart AerospaceSTC SR02180LAInstallation of a Cable Cutter KitApical Industries, Inc. dba Dart AerospaceSTC SR02288LAInstallation of Nose Window Utility Mount.Gyron Systems International, LTD.STC SR09582RCInstallation of Lead Acid Battery MaintainerAir Methods CorporationSTC SR09588RCInstallation of Aspen Avionics 1000H Primary Flight Display and Multi Function DisplayAir Methods CorporationSTC SR09459RCInstallation of Night Vision Goggle (NVG) Compatible Interior Lighting SystemREB Technologies IncSTC SR09575RCInstallation of Garmin G500H Flight Display SystemGarmin International IncSTC SR02493LAInstallation of Teledyne Battery Products Model 7641-20Teledyne Battery ProductsSTC SR03383NYInstallation of a Latitude Technologies IONODE Flight Data Monitoring (FDM)Latitude Technologies CorporationSTC SR03380NYReplacement of existing OEM supplied Cargo Hook with the Installation of Indra ro Siren IS10-100 Cargo Hook per MDL No.ADC17, Issue 2Aerospace Design and Certification, Ltd.STC SR00654NYInstallation of rear cargo hinge and latch.Eurocopter Canada LimitedSTC SR00338BOInstallation of a Flight Data System KIT 130ND-3130100North Flight Data Systems, LLCSTC SR01866CHInstall Electrically Actuated Retractable Microwave Antenna on Landing Gear Skid.Broadcast Microwave Services Inc.STC SR00422NYRelocation of a higher capacity battery to the tail boomEurocopter Canada LimitedSTC SR00927NYInstallation of a Fargo Airborne Surveys Electro-Magnetometer Boom and Geosurvey EquipmentDECA Aviation Engineering LimitedSTC SR03352NYInstallation of Skynode S200 SATPHONE/TRACKERSKYTRAC Systems Ltd.STC SR09558RCInstallation of Night Vision Goggle (NVG) Compatible Lighting SystemAero Dynamix Inc.STC SR03345NYInstallation of Fugro AGG Survey Installation (Structural Provisions)DECA Aviation Engineering LimitedSTC SH1262NWFabrication of either Onboard Systems Hydraulic Model H-69 (Part Number 200-018-00) or Electronic Models E-69 (Part Numbers 200-058-00 and 200-295-00) Cargo Hook Load Weigh SystemsOnboard Systems InternationalSTC SR00676NYInstallation of forward opening rear cargo door.Eurocopter Canada LimitedSTC SR00430NYInstallation of a forward two-place passenger seating configuration.Eurocopter Canada LimitedSTC SR01632NYInstallation of Airframe Mounted Fuel FilterEurocopter Canada LimitedSTC SH2676SOInstallation of a lubrication oil scavenge filter.Purolator Facet Inc.STC SH1476SOManufacture of a Controllable Belly Mounted Searchlight (Nightscanner)Bell Helicopter Textron Inc.STC SR03279NYInstallation of a Cable CutterEurocopter Canada LimitedSTC SR03272NYInstallation of a Technisonic Industries Limited TDFM-136B TransceiverTechnisonic Industries LimitedSTC SR09633RCInstallation of Balloon Pump Restraint System (BPRS)JJASPP Engineering Services LLCSTC SH5119NMInstallation of a modified rear bench seat.Apical Industries IncSTC SH5120NMInstallation of a two-piece high/ low-back forward seat.Apical Industries IncSTC SR00191SEInstallation of a single place pilot/ copilot seat.Apical Industries IncSTC SR00039ATManufacture of passenger bulged window.Bell Helicopter Textron Inc.
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