Cessna 421C

STCs that may be installed · 258

In force first, then newest. The registry doesn’t record which STCs an aircraft has.

Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
  FROM (
    SELECT stc_number, min(matched_model) AS matched_model
    FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_stc.parquet'
    WHERE aircraft_model_code IN ('2076016', '2076017')
    GROUP BY stc_number
  ) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
  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 SA1326CEInstallation of Avcon Industries standard stretchers, P/N 4001--201 or 4001-202 and P/N 4001-301 or 4001-302 back adjustable stretcher.Med-Flite of Midamerica, IncSTC SA2350NM PAGE 1Installation of Electronics International Inc digital carburetor/outside air temperature gaugesElectronics InternationalSTC SA4068NMInstallation of emergency medical system.Rocky Mountain Intensive Air Care, Inc.STC SA4302NMInstallation of Electronics Int'l digital automatic engine analyzer.Electronics InternationalSTC SA4024NMReplace the standard Cessna oil drain plug with a Bogert Aviation quick drain.Bogert AviationSTC SA4333NMThis STC approves the use of the King KFC200 Flight Control System with the Pratt and Whitney PT6-135 Turbine engines installed on the Cessna 421C Registraion Number N44CG, Serial Number 421C-0110.Shannon EngineeringSTC SA3862NM PAGE 1Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories.Electronics InternationalSTC SA2302CEInstallation of Bendix MLS-21 microwave landing system receiver.MSISTC SA2063SOInstallation of stretcher system.National Jets, IncSTC SA3283NMInstallation of ARNAV Systems FC-10/FT 10 digital fuel flow indicating system.Arnav SystemsSTC SA2758NMInstallation of medical oxygen and suction system.Intensive Air CareSTC SA3524SWInstallation of Tracor TA 7900 Omega/VLF navigation system.Tracor, IncSTC SA1418SOReplacement of rotor vanes in Airborne 211CC and 212CW vacuum pumps. (See limitations)Aircraft Products Supply Co IncSTC SA3110SW-DInstallation of Mitchell Automatic Flight System Model AK579,Century Flight Systems IncSTC SA3111SW-DInstallation of Mitchell Yaw Damper System Model YK580Century Flight Systems IncSTC SA2190NM PAGE 1Installation of electronics International Digital Volt/Amp Gauges and Accessories.Electronics InternationalSTC SA3416SW-DEdo Avionics automatic flight system AK 919 consisting of Century 31 autopilot.Century Flight Systems IncSTC SA5427SWInstallation of Texas Instruments Mode TI 9100-C navigator and King KFC250 Flight Director System, or Cessna ARC 800B Integrated Flight Control SystemTexas Instruments, IncSTC SA607GLInstallation of a Shadin Company 910502, 910504, or 910514 fuel flow indicating system.Shadin AvionicsSTC SA5426SWInstallation of Texas Instruments Model TI 9100 Loran C navigator.Texas Instruments, IncSTC SA1867CEDC powered windshield installation. (421C EXCEPT 421C0801 THRU 421C1400)Wilco IncSTC SA3881WPInstallation of dual elevator trim tab actuator.Riley Aircraft CorpSTC SA4365WEInstallation of an air conditioning system.Riley Aircraft CorpSTC SA481GLInstallation of a Collins LRN-70 Omega Navigation System.Electrosonics Div AiRadio Corp.STC SA1261CE-DInstallation of Collins AP-106 autopilot system.Collins Radio GroupSTC SA1262CE-DInstallation of Collins AP-1072-axis autopilot system.Collins Radio GroupSTC SA1263CE-DInstallation of Collins AP-1073-axis autopilot system.Collins Radio GroupSTC SA2656SWAddition of Hydro Seal Fluid Additive to nose and main gear shock struts.Granville Lasseter/dba Granville's Aircraft Strut SealantSTC SA1305CEInstallation of fire suppression system.Enk Aviation CorporationSTC SA1191EAInstallation of Hanlon & Wilson exhaust system P/N 8294-1(L.H) and 8294-2(R.H.)Hanlon & Wilson, IncSTC SA196RMNew slip joint exhaust manifold.Heliarc Welding Service Inc.STC SA2905SWInstallation of AVICON TZ1 fuel flow totalizer systemAvicon Development CorporationSTC SA2906SWInstallation of AVICON AF1 fuel flow processor.Avicon Development CorporationSTC SA2386SWInstallation of S.A.F.E., EGT, CHT Systems.Avicon Development CorporationSTC SA1393CEInstall forward baggage door warning system.Wells Aircraft, IncSTC SA1375CEReduce height of existing survival seat.Sierra Research CorpSTC SA1343CEInstall Sierra data console on left hand seat rails.Sierra Research CorpSTC SA890SOInstallation of Bendix FCS-810 automatic flight control system including manual electric pitch and optional flight director indicator.Bendix Corporation Avionics DivSTC SA1120CEInstallation of Collins Radio Group AP-106 autopilot system.Collins Radio GroupSTC SA1121CEInstallation of Collins Radio Group AP-107 (2 axis) autopilot system.Collins Radio GroupSTC SA1122CEInstallation of Collins AP-107(3 axis) autopilot system.Collins Radio GroupSTC SA591EAInstallation of Radome Part Part No. 3084X.Norton Company, Performance Plactics · Lists 421 SeriesSTC SA886SOInstallation of Bendix M-4D automatic flight control system in cluding optional manual electric pitch trim and optional flight director system.Bendix Corporation Avionics DivSTC SA1675WEInstallation of exhaust gas temperature monitoring systems EGT-2.K S Avionics, Inc · Lists 421 SeriesSTC SA661EAInstallation of Radome Kit No. 3084K for Bendix RDR-100 or RDR-110 series radar systems 12-inch antenna.Norton Company · Lists 421 SeriesSTC SA662CEInstallation of Jet Electronics & Technology, Inc. Model FC120A autopilot.Jet Electronics & Technology · Lists 421 SeriesSTC SA673CEInstall Hartzell HC-B3WF-2/9349-3 propellers.Hartzell Propeller Inc · Lists 421 SeriesSTC SA978SWCollins FD108 flight director system.Aircraftsmen Inc · Lists 421 SeriesSTC SA00765DE PAGE 1Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensorPeregrineSTC SA02153LA-DInstallation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) SystemGarmin International Inc
Back to Cessna 421C