Cessna 421B

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 ('2076014')
    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 SA4024NMReplace the standard Cessna oil drain plug with a Bogert Aviation quick drain.Bogert AviationSTC SA3862NM PAGE 1Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories.Electronics InternationalSTC SA2063SOInstallation of stretcher system.National Jets, IncSTC SA660WEInstallation of HRD-type fire extinguishing system. (AND STC SA111WE)Pacific ScientificSTC SA3283NMInstallation of ARNAV Systems FC-10/FT 10 digital fuel flow indicating system.Arnav SystemsSTC SA2721NMInstallation of a turbocharger bypass exhaust elbow.Heliarc Welding Service Inc.STC SA169RMInstallation of exhaust stacks.Heliarc Welding Service Inc.STC SA1667SWInstallation of Mitchell automatic flight system Model YK385 consisting of yaw damper.Century Flight Systems IncSTC SA1668SWInstallation of Mitchell automatic flight system Model AK407, consisting of Century IV autopilot with trim; or AK407/FD consisting of Century IV autopilot/ flight director with trim.Century Flight Systems IncSTC SA1494SWInstallation of Mitchell flight director remote annunciator Model AK375.Century Flight Systems IncSTC SA1601SOInstallation of Bendix FCS-810 automatic flight control system including flight director indicator(FC-813B) and manual electric trim. (421B WITH RILEY MOD STC SA4293WE)Aero Services Raleigh-Durham, Inc.STC SA2190NM PAGE 1Installation of electronics International Digital Volt/Amp Gauges and Accessories.Electronics InternationalSTC 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 SA1515NMCrossover exhaust pipe assembly.Heliarc Welding Service Inc.STC SA3881WPInstallation of dual elevator trim tab actuator.Riley Aircraft CorpSTC SA4365WEInstallation of an air conditioning system.Riley Aircraft CorpSTC SA2656SWAddition of Hydro Seal Fluid Additive to nose and main gear shock struts.Granville Lasseter/dba Granville's Aircraft Strut SealantSTC SA1210CEInstallation of Hanlon & Wilson exhaust systems, P/N 8108-59 and P/N 8109-59 or P/N8108-159 and 8109-159.Hanlon & Wilson, IncSTC 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 SA108RMModify exhaust stacks by replacing existing bellows or seal type joints with a clampless, sealess type slip joint.Heliarc Welding Service Inc.STC SA1375CEReduce height of existing survival seat.Sierra Research CorpSTC SA1343CEInstall Sierra data console on left hand seat rails.Sierra Research CorpSTC SA102RMInstallation of exhaust turbo connector, P/N 042177-5.Heliarc Welding Service Inc.STC SA986CEInstallation of Collins Radio Group AP-106 autopilot system.Collins Radio GroupSTC SA135GLInstall a J.E.T. DAC-2000 3-D RNAV system.Jet Electronics & TechnologySTC SA465SOInstallation of Bendix FCS-810 automatic flight control system including flight director indicator DH-841( ) and manual electric trim.Bendix Corporation Avionics DivSTC SA591EAInstallation of Radome Part Part No. 3084X.Norton Company, Performance Plactics · Lists 421 SeriesSTC SA1167CEInstallation of AP 107 autopilot(2 axis). Serials 301 and subsequent.Collins Radio GroupSTC SA107GLConversion of oil lubricated de-ice pumps and related hardware to Airborne dry air pump 400 series conversion kits.Airborne Manufacturing CoSTC SA1168CEInstallation of Collins Radio Group AP-107, 3 axis, autopilot system and interface with Collins 329A-4V indicator. Serials 301 and subsequent.Collins Aviation ServiceSTC SA1675WEInstallation of exhaust gas temperature monitoring systems EGT-2.K S Avionics, Inc · Lists 421 SeriesSTC SA584SOInstallation of Bendix YD-4 yaw damper system.Bendix Corporation Avionics DivSTC SA1001CEInstallation of H-14 autopilot.King Radio CorpSTC SA2810WEInstallation of Collins AP-105 autopilot and FD-108 flight director systems.Tower Avionics CenterSTC SA3RMModification of engine exhaust stacks by replacement of expansion joint with slip fit joint.Heliarc Welding Svc IncSTC SA2749WEInstallation of Lear AFC-70 AP/FD steering computer system.Lear Avia CorporationSTC SA547SOInstallation of Bendix M-4D auto- matic flight control system in- cluding optional manual electric trim and optional flight director system in serial numbers 402B0301 and up, 4140351 and up, and421B0301 and up.Bendix Corporation Avionics DivSTC SA632SOInstallation of Bendix Model M-4C automatic flight control system, including manual electric trim.Bendix Corporation Avionics DivSTC SA661EAInstallation of Radome Kit No. 3084K for Bendix RDR-100 or RDR-110 series radar systems 12-inch antenna.Norton Company · Lists 421 SeriesSTC SA1200CEInstallation of FiQuench cabin and/or engine fire extinguishant system.Enk Aviation CorporationSTC SA3017WEInstallation of fuel flow instruments.Silver Instruments IncSTC 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 sensorPeregrine
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