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.
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
Run 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.
STC SH224WEInstallation of heated pitot.STC SA589WEFull flow oil filter F-94056 and F-94056-12 with element E-3560 MEL 800.STC SH180WEInstallation of night advertising sign.STC SH134WEInstallation of Spectrolab Nightsun SX-16C searchlight.STC SA630WEInstallation of oil filter assemblies. (NAVION A AND B with optional engine)STC SH749SWInstallation of Helemco Model A-2-Z quick change combination dispersal system.STC SA1003CEReplacement of Hughes P/N269A5501 idler pulley with Hughes P/N269A5414 idler pulley.STC SH69WEInstallation of float kit, P/N 269A4300-7.STC SA586EAInstallation of Hartzell anti- overspeed kit.STC SH146WEInstallation of utility window.STC SH145WEInstallation of modified oil filler tube and dipstick.STC 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.STC 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.STC SH74WEInstallation of Lycoming HIO-360-A1A engine.STC SH22WELanding gear conversion kit 100.STC SH23WECargo cling unit with release mechanism.STC SH24WEModified spray system.STC SH26WECargo sling unit with release mechanism.STC SH35WESpray system.STC SH40WEDust dispensing equipment.STC SA123WEInstallation of E.O.S. 1 KW search- light and Technical Engineering & Manufacturing Co., Inc. Model TA-30 alternator.STC SH11WEOverlay instrument panel to accommodate Motorola ADF T-128, Sperry Horizon, Schwien turn and bank.STC SH14WEFull flow lube oil filter 30409A with element 1A0235.STC SH18WECargo racks left and right sides.STC SH41WEHB64 spray equipment of HB 12CF seeding equipment.STC SH54ALTundra boards.STC SH60WELycoming HIO-460-B1B engine.STC SH6WEAluminum frame cargo rack on front and rear beam assembly.STC SH84ALCargo racks.STC SH1WETwo 30-gallon tanks and spraying equipment.STC SH31WESpray equipment.STC SH3WEDust tanks and associated equipment (restricted category only).STC SA02153LA-DInstallation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) SystemSTC SA2350NMInstallation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories.
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