# N494BC: Cessna 402C

- Status: Valid registration
- Airframe: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (registry code 207590R, 10 seats)
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE) (Textron Aviation Inc.) (OpenAirDocs)
- Serial number: 402C0308
- Type: Fixed wing multi engine
- Engine type: Reciprocating
- Certificate issued: June 11, 2008
- Expires: July 31, 2027
- Mode S code: A61F10
- Registered owner: [Hyannis Air Service Inc](https://openairdocs.org/faa-owner/HYANNIS%20AIR%20SERVICE%20INC)
- Location: [Hyannis, MA](https://openairdocs.org/faa-place/MA/Hyannis)
- Owner type: Corporation
- Owner's area on the map: 41.6612° N, 70.2932° W: Placed by OpenAirDocs at the center of ZIP code 02601, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=494BC
- Page: https://openairdocs.org/aircraft/N494BC

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 25 in force

### Matched by airframe (Cessna 402C)

- [AD 2023-09-09](https://openairdocs.org/ad/2023-09-09): Exhaust Turbine System (Recip) · Aerostar PA-60-600 (Aerostar 600), PA-60-601 (Aerostar 601), PA-60-601P (Aerostar 601P) and 292 more. Effective Jul 17, 2023
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2018-03-03 R1](https://openairdocs.org/ad/2018-03-03-R1): Fuselage · Textron 401, 401A, 401B and 13 more. Effective May 23, 2018
- [AD 2017-10-09](https://openairdocs.org/ad/2017-10-09): Nacelles/Pylons · Textron 402C and 414A. Effective Jun 7, 2017
- [AD 2016-17-08](https://openairdocs.org/ad/2016-17-08): Elevator Tab Control System · Textron 310, 310A, 310B and 46 more. Effective Sep 12, 2016
- [AD 2015-07-03](https://openairdocs.org/ad/2015-07-03): Nacelles/Pylons · Cessna 402C and 414A. Effective Apr 24, 2015
- [AD 2012-23-01](https://openairdocs.org/ad/2012-23-01): Wings · Cessna 402C and 414A with STC SA892NW or SA927NW. Effective Dec 26, 2012
- [AD 2005-20-25](https://openairdocs.org/ad/2005-20-25): Avionics bus circuit breaker switches · Cessna 401, 401A, 401B and 15 more. Effective Nov 9, 2005
- [AD 2005-18-20](https://openairdocs.org/ad/2005-18-20): "FASTprop" propeller de-icers · Hartzell PHC-C3YF-1RF/F8468A(B,K)-8R constant speed propeller (STC SA00718LA or 17 others). Effective Oct 14, 2005
- [AD 2005-12-13](https://openairdocs.org/ad/2005-12-13): Forward wing spars · Cessna 402C and 414A. Effective Jun 22, 2005
- [AD 2005-01-19](https://openairdocs.org/ad/2005-01-19): Mode S transponders · GARMIN International GTX 330D, GTX 330, GTX 33D and 830 more. Effective Feb 23, 2005
- [AD 2000-01-16](https://openairdocs.org/ad/2000-01-16): Exhaust System · Cessna 320, 320-1, 320A and 28 more. Effective Feb 15, 2000
- [AD 98-25-02](https://openairdocs.org/ad/98-25-02): Top-mounted Antenna · Bell Helicopter Textron Canada 407, 172, 172A and 243 more. Effective Dec 22, 1998
- [AD 98-04-28](https://openairdocs.org/ad/98-04-28): AFM - Limitations Section - Icing · Cessna 310R, 335, 340A and 12 more. Effective Mar 13, 1998
- [AD 97-26-16](https://openairdocs.org/ad/97-26-16): Engine Mount Beams · Cessna 402C and 414A. Effective Feb 2, 1998
- [AD 97-01-13](https://openairdocs.org/ad/97-01-13): Fuel, Oil and Hydraulic Hoses · Cessna 150, 150A, 150B and 232 more. Effective Feb 3, 1997
- [AD 96-12-22](https://openairdocs.org/ad/96-12-22): Full Flow Engine Oil Adapter · Bellanca CH-300 Pacemaker, 120, 140 and 361 more. Effective Jul 31, 1996
- [AD 95-09-13](https://openairdocs.org/ad/95-09-13): Fuel Inlet Float Valve · Cessna 402C, 404, 414A and 2 more. Effective Jun 14, 1995
- [AD 92-16-18](https://openairdocs.org/ad/92-16-18): Passenger Seat Reinforcement · Cessna 401, 402, 402A and 9 more. Effective Sep 10, 1992
- [AD 90-02-13](https://openairdocs.org/ad/90-02-13): Main Landing Gear · Cessna 310, 310A, 310B and 40 more. Effective Feb 5, 1990
- [AD 87-21-02 R1](https://openairdocs.org/ad/87-21-02-R1): Fuel Filler Openings · Cessna 310D, 310E, 310F and 41 more. Effective Jun 16, 1989
- [AD 84-20-02](https://openairdocs.org/ad/84-20-02): Nose Landing Gear · Cessna 402C, 404, 414A and 3 more. Effective Nov 1, 1984
- [AD 80-13-14](https://openairdocs.org/ad/80-13-14): Fuel Flow Transducer · Cessna 310R, 335, 340A and 4 more. Effective Jul 22, 1980
- [AD 76-16-07](https://openairdocs.org/ad/76-16-07): Engine Attachment Tangs · Allison 250-B17 or 250-B17B engines (Alaskan Turbine S.T.O.L. STC SA117NW or SA2424WE). Effective Aug 20, 1976
- [AD 72-03-07](https://openairdocs.org/ad/72-03-07): Landing Gear Failure · Cessna 310, 310A, 310B and 30 more. Effective Feb 9, 1972

### Historical (superseded or no longer in force)

- [AD 2018-03-03](https://openairdocs.org/ad/2018-03-03) (historical): Fuselage · Textron 401, 401A, 401B and 13 more. Effective Feb 28, 2018
- [AD 2016-07-24](https://openairdocs.org/ad/2016-07-24) (historical): Elevator Tab Control System · Textron 310, 310A, 310B and 46 more. Effective Apr 26, 2016
- [AD 2005-05-52](https://openairdocs.org/ad/2005-05-52) (historical): Aft and auxiliary spars · Cessna 402C and 414A. Effective Mar 21, 2005
- [AD 2005-05-51](https://openairdocs.org/ad/2005-05-51) (historical): Wing spars · 402C and 414A
- [AD 2000-23-01](https://openairdocs.org/ad/2000-23-01) (historical): Wing Spars · Cessna 402C. Effective Dec 21, 2000
- [AD 99-11-13](https://openairdocs.org/ad/99-11-13) (historical): Auxiliary Wing Spars · 402C. Effective Jun 21, 1999

## Information bulletins (advisory) (13 in force)

- [SAIB CE-13-27R1](https://openairdocs.org/saib/CE-13-27R1): Flight Controls  Frayed Flap Extend Cables. Issued Jan 5, 2022
- [SAIB AIR-21-20](https://openairdocs.org/saib/AIR-21-20): TE FLAP CONTROL SYSTEM, Flight Controls –Flap Cable Tension. Issued Dec 16, 2021
- [SAIB CE-14-11R1](https://openairdocs.org/saib/CE-14-11R1): Landing Gear; Nose Landing Gear Trunnions. Issued Sep 23, 2015
- [SAIB CE-14-19](https://openairdocs.org/saib/CE-14-19): Landing Gear; Main Landing Gear (MLG) Torque Link. Issued May 30, 2014
- [SAIB CE-13-22](https://openairdocs.org/saib/CE-13-22): Electrical Power System  Circuit Breaker Switch. Issued Mar 13, 2013
- [SAIB CE-10-48](https://openairdocs.org/saib/CE-10-48): Landing Gear  Main Landing Gear. Issued Sep 8, 2010
- [SAIB CE-10-44](https://openairdocs.org/saib/CE-10-44): Hydraulic Power  Indicating. Issued Aug 9, 2010
- [SAIB CE-10-01](https://openairdocs.org/saib/CE-10-01): Fuel: Fuel Tank Selector Valve Systems. Issued Oct 5, 2009
- [SAIB CE-05-35](https://openairdocs.org/saib/CE-05-35): . Issued Mar 4, 2005
- [SAIB CE-04-48](https://openairdocs.org/saib/CE-04-48): . Issued Jan 21, 2004
- [SAIB CE-03-17](https://openairdocs.org/saib/CE-03-17): . Issued Jan 13, 2003
- [SAIB ACE-99-06](https://openairdocs.org/saib/ACE-99-06): . Issued Nov 17, 1998
- [SAIB ACE-99-05](https://openairdocs.org/saib/ACE-99-05): . Issued Nov 17, 1998
- [SAIB CE-14-11](https://openairdocs.org/saib/CE-14-11) (historical): Landing Gear; Nose Landing Gear Trunnions. Issued Feb 25, 2014

## NTSB investigations

None matched to N494BC.

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20210528011879I](https://openairdocs.org/incident/20210528011879I), May 28, 2021: Cessna 402C (N494BC), Boston, MA, Minor damage. During company repositioning flight from ack to bos where VMC conditions prevailed. On approach the landing gear handle was positioned to extend position were…
- [Incident 20091121052219I](https://openairdocs.org/incident/20091121052219I), Nov 21, 2009: Cessna 402C (N494BC), Hyannis, MA, Minor damage. Aircraft declared an emergency with an unsafe nose landing gear indication. After nose landing gear failed to extend hydraulically, the pilot attempted to blow…

## Service difficulty reports (23)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR HYIA20250627001](https://openairdocs.org/sdr/HYIA20250627001), Jun 24, 2025: CROSSBEAM. CRACKED. DURING INSPECTION A CRACK WAS VISUALLY NOTED ON THE LEFT HAND CROSSOVER BEAM (OEM 5654104-11). THIS CRACK IS LOCATED ON THE AFT FACE OF THE BEAM AT APPROXIMATE 
- [SDR HYIA20250515001](https://openairdocs.org/sdr/HYIA20250515001), May 12, 2025: WIRE. SHORTED. PILOT REPORTED LEFT ENGINE CYLINDER TEMP INDICATIONS WERE IN THE RED ON TAXI OUT. MAINTENANCE INSPECTED AND FOUND THE POSITIVE WIRE TO THE ALTERNATOR SHORTED IN
- [SDR HYIA20210817001](https://openairdocs.org/sdr/HYIA20210817001), Aug 16, 2021: ATTACH FITTING. CORRODED. DURING MAINTENANCE A SPOT OF CORROSION WAS VISUALLY IDENTIFIED ON THE LEFT HAND UPPER FORWARD WING ATTACH FITTING. IT IS LOCATED ON THE BOTTOM FACE OF THE UPPER
- [SDR HYIA20210611002](https://openairdocs.org/sdr/HYIA20210611002), May 28, 2021: LINE. CRACKED. NOSE GEAR LIGHT DID NOT ILLUMINATE ON EXTENSION, AIRCRAFT LANDED WITH GEAR UNLOCKED, GEAR COLLAPSED ON LANDING. NO INJURIES. INSPECTED AIRCRAFT AND FOUND HYDRAU
- [SDR HYIA20190925001](https://openairdocs.org/sdr/HYIA20190925001), Sep 25, 2019: BEAM. CRACKED. DURING MAINTENANCE A CRACK WAS VISUALLY IDENTIFIED ON THE AFT SIDE OF THE RIGHT NACELLE CROSSOVER BEAM (P/N: 5654104-12). THIS CRACK MEASURES APPROXIMATELY 1.30
- [SDR HYIA20190920001](https://openairdocs.org/sdr/HYIA20190920001), Sep 19, 2019: BEAM. CRACKED. DURING X-RAY INSPECTION OF THE RIGHT HAND INBOARD ENGINE BEAM TO SATISFY THE REQUIREMENT OF AD 97-26-16, A CRACK WAS IDENTIFIED TRAVELING IN A DIRECTION TRANSVE
- [SDR HYIA20170828009](https://openairdocs.org/sdr/HYIA20170828009), Apr 14, 2017: FITTING. CRACKED. DURING A ROUTINE INSPECTION, A CRACK WAS DISCOVERED IN THE RT OUTBOARD NACELLE FITTING. THE CRACK WAS FOUND ON THE INBOARD SIDE OF THE FITTING, JUST FORWARD OF 
- [SDR HYIA20170828008](https://openairdocs.org/sdr/HYIA20170828008), Mar 28, 2017: FITTING. CRACKED. DURING A ROUTINE INSPECTION, THREE CRACKS WERE FOUND ON THE LT OUTBOARD NACELLE FITTING. THESE CRACKS WERE DISCOVERED ON THE INBOARD SIDE OF THE FITTING, JUST F
- [SDR HYIA20160913161](https://openairdocs.org/sdr/HYIA20160913161), Sep 28, 2016: EXHAUST VALVE. DAMAGED. CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION; EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.
- [SDR HYIA20150918002](https://openairdocs.org/sdr/HYIA20150918002), Sep 15, 2015: DOOR. OPEN. PILOT REPORTED THE LT WING LOCKER OPENED DURING FLIGHT. INSPECTED THE LT WING LOCKER DOOR & LATCH ASSEMBLY WITH NO DEFECT NOTED. OPERATIONS CHECKED GOOD.
- [SDR HYIA20150804001](https://openairdocs.org/sdr/HYIA20150804001), Jul 29, 2015: FLUID. LOW. LOST BRAKING FOR A FEW SECONDS ON LANDING ROLLOUT. FIRST ON CO-PILOT SIDE THEN ON PILOT SIDE. INSPECTED BRAKE LINING & PADS ON LT & RT SIDE. INSPECTED FOR LEAKS
- [SDR HYIA20150624002](https://openairdocs.org/sdr/HYIA20150624002), Jun 19, 2015: LINKAGE. UNSECURE. PILOT REPORTED RPM LOSS ON THE RT ENG DROPPED FROM 2300 TO 2000 RPM. WOULD NOT CHANGE WHEN MOVING PROP LEVER. SECURED PROP LINKAGE IAW MM CH 61-20-00. OPERATION
- [SDR HYIA201504130001](https://openairdocs.org/sdr/HYIA201504130001), Apr 10, 2015: SPAR. CHAFED. UPON REMOVAL OF LT MLG HYD EXTEND & RETRACT ACTUATOR TO FACILITATE OTHER MAINTENANCE, A HOLE WAS DISCOVERED IN THE LT WING FWD SPAR WEB. THE HOLE IS LOCATED AT 
- [SDR HYIA20121003004](https://openairdocs.org/sdr/HYIA20121003004), Sep 29, 2012: SPARK PLUG. WORN. PILOT REPORTED THAT AFTER TAKEOFF, A VIBRATION WAS FELT THROUGHOUT THE AIRFRAME. ELECTED TO RETURN TO DEPARTURE. ALL PANELS AND DOORS WERE INSPECTED FOR SAFETY 
- [SDR HYIA20140415079](https://openairdocs.org/sdr/HYIA20140415079), Aug 30, 2012: DRAG BRACE. CRACKED. AT SCHEDULED INSPECTION, NLG DRAG BRACE, PN 5142002-5, WAS FOUND TO BE CRACKED IN THE AREA OF NLG ACTUATOR ATTACH POINT. METHOD OF INSPECTION WAS DYE PENETRANT.
- [SDR HYIA20140414006](https://openairdocs.org/sdr/HYIA20140414006), Aug 11, 2011: DRAG BRACE. CRACKED. AT SCHEDULED INSPECTION, NLG DRAG BRACE, PN 5142002-5, WAS FOUND TO BE CRACKED IN THE AREA OF NLG ACTUATOR ATTACH POINT. METHOD OF INSPECTION WAS DYE PENETRANT.
- [SDR HYIA01](https://openairdocs.org/sdr/HYIA01), Jun 23, 2011: NUT. CRACKED. THE NR 3 CYLINDER OF THE RIGHT ENGINE HAD A CRACKED HOLD DOWN NUT.
- [SDR HYIA20140415007](https://openairdocs.org/sdr/HYIA20140415007), Jan 21, 2011: DRAG BRACE. CRACKED. AT SCHEDULED INSPECTION, NLG DRAG BRAC OEM PN 5142002-5 WAS FOUND TO BE CRACKED IN THE AREA OF NLG ACTUATOR ATTACH POINT. METHOD OF INSPECTION WAS DYE PENETRANT
- [SDR HYIA494BCRTENG](https://openairdocs.org/sdr/HYIA494BCRTENG), Dec 7, 2010: FUEL CONTROL. OUT OF ADJUST. CREW REPORTED, WHILE PERFORMING "IN RANGE" CHECKLIST, RT ENGINE QUIT. CREW PERFORMED ENGINE FAILURE CHECKLIST, AND WHEN AUXILARY FUEL PUMP WAS TURNED ON HIGH PO
- [SDR HYIA494BCKG102](https://openairdocs.org/sdr/HYIA494BCKG102), Aug 25, 2010: GYRO. FAILED. CREW REPORTED HSI FAILED (FROZEN) DURING CLIMB IN HEAVY RAIN AND MODERATE TURBULENCE. EMERGENCY DECLARED, DIVERTED. LANDING WAS UNEVENTFUL. MX FOUND REMOTE GRYO
- [SDR HYIA404BCNGEAR](https://openairdocs.org/sdr/HYIA404BCNGEAR), Nov 21, 2009: LINE. SPLIT. WHILE EN ROUTE, THE RT HYD FLOW LIGHT BEGAN TO FLICKER, FOLLOWED SHORTLY THEREAFTER BY THE LT HYD FLOW LIGHT. COMPLETED HYD FLOW "LIGHT ILLUMINATED IN FLIGHT" C
- [SDR HYIA494BC](https://openairdocs.org/sdr/HYIA494BC), Jun 21, 2009: MASTER SWITCH. INOPERATIVE. CREW REPORTED AVIONIC MASTER SWITCH INOPERATIVE. MX REMOVED AND REPLACED SWITCH, AND RETURNED ACFT TO SERVICE.
- [SDR GNB2005F00004](https://openairdocs.org/sdr/GNB2005F00004), Jun 8, 2005: VALVE. WARPED. WARPED VALUE. (K)

## STCs that may be installed (OpenAirDocs) (211, first 50)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Cessna 402C)

- [STC SA02571SE](https://openairdocs.org/stc/SA02571SE): Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display). Garmin International Inc
- [STC SA01800SE](https://openairdocs.org/stc/SA01800SE): Fabrication and installation of new or replacement of existing instrument panel lights dimmer control. TCW Technologies, LLC
- [STC SA01861SE](https://openairdocs.org/stc/SA01861SE): Fabrication and installation of Landing Light Controller. TCW Technologies, LLC
- [STC SA02279AT](https://openairdocs.org/stc/SA02279AT): Installation of a Boom Beam bulb, starter, and ballast. Whelen Aerospace Technologies
- [STC SA04837NY](https://openairdocs.org/stc/SA04837NY): Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights. AeroLED's Holdings, LLC
- [STC SA02019SE-D](https://openairdocs.org/stc/SA02019SE-D): Installation of Garmin Model GTN 625/635/650; 725/750 Navigation System. Garmin International Inc
- [STC SA00079NY](https://openairdocs.org/stc/SA00079NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K008 on single and multi engine fixed wing light aircraft incorporating Teledyne Continental reciprocating engines of 450 horsepower or less. Airwolf Filter Corporation
- [STC SA02511SE](https://openairdocs.org/stc/SA02511SE): Installation of replacement fuel quantity indicator sending unit(s). CiES Inc
- [STC SA5581SW](https://openairdocs.org/stc/SA5581SW): Installation of ALCOR true-flow/ totalizer system. Alcor LLC. Lists 402 Series
- [STC SA02731SE](https://openairdocs.org/stc/SA02731SE): Installation of Luma Technologies LT-4300 Series LED Display Panel and/or LT-4302 LED Gear Status Annunciator. Luma Technologies LLC
- [STC SA02738CH](https://openairdocs.org/stc/SA02738CH): Installation of L-3 Communications Avionics Systems. Acron Aviation Inc
- [STC SA04046CH PAGE 1](https://openairdocs.org/stc/SA04046CH%20PAGE%201): Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500). Acron Aviation Inc
- [STC SA02386AK](https://openairdocs.org/stc/SA02386AK): Replacement of existing landing and/or taxi light reflector and bulbs with Light Emitting Diode (LED) lighting systems. AeroLED's Holding LLC
- [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc
- [STC SA02532AT](https://openairdocs.org/stc/SA02532AT): Installation of subject Michelin tires on appropriate aircraft. For Michelin 5, 6, 8, and 10-inch rim diameter tires on General Aviation Aircraft. Michelin North America Inc
- [STC SA00756DE](https://openairdocs.org/stc/SA00756DE): Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out Equipment using a Trig Avionics TT22 Transponder and an approved Global Positioning System (GPS) Position Sensor. Peregrine
- [STC SA02010WI](https://openairdocs.org/stc/SA02010WI): Installation of the Mid-Continent Instruments & Avionics MD23 FLEX Custom Function Display (CFD). Mid-Continent Instruments and Avionics
- [STC SA197GL](https://openairdocs.org/stc/SA197GL): Install Cleveland conversion kit P/N 199-76. Kaman Corporation Aircraft Wheel and Brake LLC
- [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc
- [STC SA02203AK](https://openairdocs.org/stc/SA02203AK): Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV). Genesys Aerosystems Inc
- [STC SA02254AK](https://openairdocs.org/stc/SA02254AK): Installation of "Single Screen", "2 or 3 Screen", "Dual Screen", or "4 or 6 screen". Genesys Aerosystems Inc
- [STC SA02444AK](https://openairdocs.org/stc/SA02444AK): Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed. ADS-B Technologies LLC
- [STC SA4222SW](https://openairdocs.org/stc/SA4222SW): Mount collision avoidance lights in engine nacelle. Johnson Aviation Products
- [STC SA09856AC](https://openairdocs.org/stc/SA09856AC): Installation of BendixKing Aerowave 100 In-flight Data Link System for non-essential, non-required aircraft Cabin Systems & Equipments. Honeywell International Inc (Bendix King)
- [STC SA11174SC PAGE 1](https://openairdocs.org/stc/SA11174SC%20PAGE%201): Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems. Honeywell International Inc (Bendix King)
- [STC SA02265SE](https://openairdocs.org/stc/SA02265SE): Installation of a camera housing. Airborne Sensor LLC
- [STC SA02426AK](https://openairdocs.org/stc/SA02426AK): Approval of the FreeFlight FDL-978-TX ADS-B system installed. FreeFlight Systems
- [STC SA10236SC](https://openairdocs.org/stc/SA10236SC): Installation of a GDC 31 Roll Steering Converter. DAC International Inc
- [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation
- [STC SA00998WI-D](https://openairdocs.org/stc/SA00998WI-D): Installation of Bendix/King KMD 550/850 Multi-Function Display, with optional KLN 94 Global Positioning System, KGP 560 General Aviation Enhanced Ground Proximity Warning System, RDR 2000 Weather Radar System and KMH 880 Multi-Hazard Awareness System or KTA 870 Traffic Awareness System. Honeywell International Inc
- [STC SA1502CE](https://openairdocs.org/stc/SA1502CE): Install King KFC 200 automatic flight control system, (2 axis, 3rd axis optional), with or without flight director. Honeywell International Inc
- [STC SA1526CE-D](https://openairdocs.org/stc/SA1526CE-D): Installation of King KAS 297 Altitude Selector Option. Honeywell International Inc
- [STC SA01452CH](https://openairdocs.org/stc/SA01452CH): Installation of an air ambulance conversion kit. Med-Pac Inc
- [STC SA01714WI](https://openairdocs.org/stc/SA01714WI): Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R with ADS-B Out functionality in select airplanes installed with G950/G1000 systems. Garmin International Inc
- [STC SA03286CH](https://openairdocs.org/stc/SA03286CH): Install an electronic engine ignition system. Electroair Acquisition Corporation
- [STC SA04032CH](https://openairdocs.org/stc/SA04032CH): Install rocker switch assemblies. Electroair Acquisition Corporation
- [STC SA8RM](https://openairdocs.org/stc/SA8RM): Installation of a vapor cycle air-conditioning system. Air Comm Corporation
- [STC SA00344BO PAGE 1](https://openairdocs.org/stc/SA00344BO%20PAGE%201): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies
- [STC SA00057SE](https://openairdocs.org/stc/SA00057SE): Installation of emergency medical stretcher, oxygen, and electrical systems. LifePort LLC
- [STC SA04160AT](https://openairdocs.org/stc/SA04160AT): Installation of Royal Atlantic Aviation High Intensity Discharge Landing and Recognition Light System. Reds Aircraft Service Inc
- [STC SA00571SE](https://openairdocs.org/stc/SA00571SE): Replacement of certain BF Goodrich pneumatic deicer boots. SMR Technologies Inc
- [STC SA01213CH](https://openairdocs.org/stc/SA01213CH): Install air ambulance conversion in accordance with Spectrum Aeromed Inc. Drawings as listed on AML SA01213CH, or later FAA approved revision. Spectrum Aeromed LLC dba Spectrum Aeromed
- [STC SA00744DE](https://openairdocs.org/stc/SA00744DE): Installation of the Automatic Dependent Surveillance Broadcast (ADS-B) Out Equipment using a Trig Avionics TT31 Transponder and an approved position sensor. Peregrine
- [STC SA00765DE](https://openairdocs.org/stc/SA00765DE): Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensor. Peregrine
- [STC SA04112CH](https://openairdocs.org/stc/SA04112CH): Installation of Appareo Systems, LLC Stratus ESG ADS-B transponder. Appareo Systems LLC
- [STC SA04165NY](https://openairdocs.org/stc/SA04165NY): Installation of Latitude Technologies Skynode S200 Satcom system must be performed. Latitude Technologies Corporation
- [STC SA02153LA-D PAGE 1](https://openairdocs.org/stc/SA02153LA-D%20PAGE%201): Installation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) System. Garmin International Inc
- [STC SA02503AK](https://openairdocs.org/stc/SA02503AK): Installation of AMSAFE State of the Art Restraint System (SOARS) inflatable restraints. AMSAFE Inc
- [STC SA02013CH](https://openairdocs.org/stc/SA02013CH): Installation of Avidyne Corporation Traffic Advisory System (TAS). Avidyne Corporation
- [STC SA01828SE](https://openairdocs.org/stc/SA01828SE): Installation of J.P. Instruments (JPI) EDM-960 Primary Engine Data Management System. J. P. Instruments

All 211: https://openairdocs.org/aircraft/N494BC/stcs.md

## Related

- Other Cessna 402C aircraft: https://openairdocs.org/model/cessna-402c/aircraft.md

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