TCDS 4H12

STCs approved under this data sheet · 134

Current certificates first, most recently changed first.

Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date
  FROM 'https://openairdocs.org/data/latest/faa_stc.parquet' s
  WHERE s.stc_number IN (SELECT stc_number FROM 'https://openairdocs.org/data/latest/faa_stc_model.parquet' WHERE tcds_number = '4H12')
  ORDER BY 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.

STC SH224WEInstallation of heated pitot.Avionics Technology, IncSTC SA589WEFull flow oil filter F-94056 and F-94056-12 with element E-3560 MEL 800.Worldwide Filter CorpSTC SH180WEInstallation of night advertising sign.Phipps Edward LSTC SH134WEInstallation of Spectrolab Nightsun SX-16C searchlight.Progressive Avn LimitedSTC SA630WEInstallation of oil filter assemblies. (NAVION A AND B with optional engine)Nelson FilterSTC SH749SWInstallation of Helemco Model A-2-Z quick change combination dispersal system.Hughes HelicopterSTC SA1003CEReplacement of Hughes P/N269A5501 idler pulley with Hughes P/N269A5414 idler pulley.Global Helicopters, IncSTC SH69WEInstallation of float kit, P/N 269A4300-7.Hughes HelicopterSTC SA586EAInstallation of Hartzell anti- overspeed kit.Hartzell Propeller, IncSTC SH146WEInstallation of utility window.Progressive Avn LimitedSTC SH145WEInstallation of modified oil filler tube and dipstick.Progressive Avn LimitedSTC SH131WEInstallation of EMPAC (U.S. Energy Corporation) Model TA-30 dual voltage alternator system(12 volts/60 amperes and28 volts/68 amperes) in lieu of12-volt alternator.US Energy CorpSTC SH11PCOne Only STC, SN 0050: Installation of Lycoming HIO-360-A1A engine, engine exhaust system, and engine cooling system as removed form Hughes Model 269B.Murrayalr Ltd.STC SH74WEInstallation of Lycoming HIO-360-A1A engine.Kensair CorporationSTC SH22WELanding gear conversion kit 100.Agricultural Aviation Engineering CompanySTC SH23WECargo cling unit with release mechanism.Agricultural Aviation Engineering CompanySTC SH24WEModified spray system.Agricultural Aviation Engineering CompanySTC SH26WECargo sling unit with release mechanism.Agricultural Aviation Engineering CompanySTC SH35WESpray system.Agricultural Aviation Engineering CompanySTC SH40WEDust dispensing equipment.Agricultural Aviation Engineering CompanySTC SA123WEInstallation of E.O.S. 1 KW search- light and Technical Engineering & Manufacturing Co., Inc. Model TA-30 alternator.Progressive Avn LimitedSTC SH11WEOverlay instrument panel to accommodate Motorola ADF T-128, Sperry Horizon, Schwien turn and bank.Clover Field Radio SupplySTC SH14WEFull flow lube oil filter 30409A with element 1A0235.Winslow Aerofilter CorpSTC SH18WECargo racks left and right sides.Waters Helicopter CorpSTC SH41WEHB64 spray equipment of HB 12CF seeding equipment.Heli-Birds IncSTC SH54ALTundra boards.Bill Moore Air ServiceSTC SH60WELycoming HIO-460-B1B engine.Pacific Airmotive CorpSTC SH6WEAluminum frame cargo rack on front and rear beam assembly.Simplex Manufacturing CoSTC SH84ALCargo racks.Bill Moore Air ServiceSTC SH1WETwo 30-gallon tanks and spraying equipment.Agricultural Aviation Engineering CompanySTC SH31WESpray equipment.Agricultural Aviation Engineering CompanySTC SH3WEDust tanks and associated equipment (restricted category only).Agricultural Aviation Engineering CompanySTC SA02153LA-DInstallation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) SystemGarmin International IncSTC SA2350NMInstallation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories.Electronics International
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