Supplemental type certificates
49,114 STCs, most recently changed first. Search by what an STC changes, its holder or a model.
Query with SQL
duckdb -csv -c "SELECT stc_number, description, holder, status, status_date FROM 'https://openairdocs.org/data/latest/faa_stc.parquet' ORDER BY status_date DESC NULLS LAST, 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 stc_number, description, holder, status, status_date FROM 'https://openairdocs.org/data/latest/faa_stc.parquet' ORDER BY status_date DESC NULLS LAST, 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 ST02516LAReplacement of existing ELT with ACK E-04 ELT Beacon and Sensor Systems S65-1231 ELT AntennaSTC ST11171SCThe installation of complete floorboards in the forward and aft lower cargo compartmentSTC SA02930NYInstallation of Insight Instrument Corporation Graphic Engine Monitor (GEM 610C) models G3, G2, and G1 and 1200C model G4 as primary Cylinder Head Temperature (CHT), Exhaust Gas Temperature (EGT), and Turbine Inlet Temperature (TIT) InstrumentsSTC SE144GLModify engine to increase compression ratio to 8.7:1.STC SE2500SWModification to higher compression ratio.STC SE2733SWModification to higher compression ratio.STC SH1171SWInstallation of Metal Main Rotor Assembly No. 47-706-590-7STC SH13WEConversion of Bell Model 47D1 to(1) Model 47G-2 (2) Model 47GSTC SH1459SWLong nose single place cabin, without doors, included in a modified center frame, modified controls to accommodate new cabin/center frame, modified hydraulic system, oil system, and instrument panel, modified tail boom and delete synchronized elevator to add a modified fuel systemSTC SH151GLInstallation of Lycoming VO-435 A1F engine modifiedSTC SH161WEInstallation of exhaust muffler assembly.STC SH162WEInstallation of exhaust muffler assembly.STC SH163EAInstallation of co-pilot seat assembly Carson Part No. 47-5000-RSTC SH165GLInstallation of Low Fuel Warning SystemsSTC SH166GLInstallation of Low Fuel Warning SystemSTC SH1710GLInstall fixed elevator in lieu of synchronized elevator.STC SH1878SW1. For OH-13H/Tomcat MK 6B single place cabin, no doors, extended nose lengthened center frame 14 , larger main rotor (2 ft.), different tail rotor installation, install Lycoming VO-435-B1A engine, increase HP 260 T.O & 220 METO 3000 r.p.m. minum engine speed, increase gross weight to 2850 lbs. restrict c.g. range to (-2.0) to (+3.), reduce VNE to 70 m.p.h., revise fuel and oil system
2. For OH-13H/Tomcat MK 6C, same as for OH-13H/ Tomcat MK 6B except install Lycoming VO-435-A1E-HC or VO-435-AF-HC engine, revised external oil system and revised center frame.STC SH210EAInstallation of Carson C-4 Cabin Modification Kit and co-pilot s seatSTC SH213WEInstallation of exhaust muffler assembly.STC SH21EAFabrication and installation of G4 Cabin KitSTC SH2303SWInstallation of a JASCO Model 755-1 Alternator and control componentsSTC SH2397SWInstallation of Ag-King 500B Spray System with 2 tanks (800 pounds total allowable), 32 foot boom on end of skid tubes and engine driven pump.STC SH279SWModification of dual control cyclic stick into quick removable stick similar to Bell 47A stick by cutting off the stick and making an insert of 4130 steel tube to fit insideSTC SH283SWChange battery location from dual positions in aft and forward locations to one fixed position under the oil cooler on center frame bottom tubes and installation of ballastSTC SH307SWInstallation of Lycoming VO-540-B1B3 engineSTC SH36WEInstallation of C-4 Cabin KitSTC SH382SWEligible only on Bell 47 series with open tail booms. Installation of sign per Kitz Kopter's Drawing KK-101 dated 10/14/64.STC SH397SWInstallation of hydraulic boost kit.STC SH410SWMount sign to skid gear on both sides of helicopterSTC SH504GLInstallation of Lycoming VO-435-A1F engine modifiedSTC SH529SWInstallation of Franklin 6V-350-A engine.STC SH588SWConversion to single-place cabin, without doors, revised cyclic and collective and throttle controls, rerouted electrical wiring.STC SH605GLRemoval of Avco Lycoming TV0-435-B1B Engine, Turbocharger, and related parts; and the installation.STC SH611SWLeft and right door with tinted glass and sliding window.STC SH752SWCenterframe modification or replacement and installation of Lycoming VO-435 engine in lieu of Franklin installation and optional lateral control system.STC SH888SWUse of spacer in lieu of snap ring on tail rotor drive quill.STC SH972SWInstallation of copilot's rudder pedals.STC SR02180LAInstallation of a Cable Cutter KitSTC SR02271LAInstallation of Apical Industries, Inc. Cable Cutters KitsSTC SR02291LAInstallation of Apical Industries, Inc. Cable Cutters Kit.STC SR09321RCInstallation of Improved Main Rotor Grips and Matching Adapter NutSTC SR09322RCInstallation of Improved Main Rotor Grips and Matching Adapter NutSTC SR09341RCInstallation of the main rotor grips with integral drag brace clevis, new drag brace, and matching adapter nut for wood blade configurationsSTC SR09348RCInstallation of the improved metal blade main rotor grips with integral drag brace clevis, new drag brace, and matching adapter nut for wood blade configurationsSTC SR09454RCInstallation approval of a new engine mount assembly and lateral cyclic control support assembly.STC ST01601WI-DUpgrade Honeywell FMZ-2000 Flight Management System (FMS) to Software Version NZ 6.1 and replace or upgrade Honeywell Global Positioning System (GPS) Navigation System Sensor Unit (GNSSU)STC SA00762DEInstallation of the MidContinent MD302 Standby Digital Flight Instrument SystemSTC ST02437AKInstallation of Software Version 6.1 on Honeywell FMZ-2000, ADS-B Out and WAAS/LPV capabilitiesSTC SA03455NYInstallation of a passenger oxygen systemSTC SR02707NYInstallation of Marathon PC-251 or KGS SPC-10 Solid State Inverters