# Keystone Helicopter S-92A - Type: Aircraft model (FAA registry) - Registry code: 4900106 - Manufacturer (registry): KEYSTONE HELICOPTER CORP - Model: S-92A - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 2 · Turbo-shaft - Seats: 22 - Weight class: 20,000 lb and over - Certification: Type certificated - Data sheet: [TCDS R00024BO](https://openairdocs.org/tcds/R00024BO) (OpenAirDocs) - Holder: Sikorsky Aircraft Corporation - Registered aircraft: 1 - Page: https://openairdocs.org/model/keystone-helicopter-s-92a Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2023-09-07](https://openairdocs.org/ad/2023-09-07): Main Rotor Mast/Swashplate · Sikorsky S-92A. Effective Jun 29, 2023 - [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023 - [AD 2022-11-04](https://openairdocs.org/ad/2022-11-04): Horizontal Stabilizer Structure · Sikorsky S-92A. Effective Jun 27, 2022 - [AD 2022-05-10](https://openairdocs.org/ad/2022-05-10): Cabin Equipment/Furnishings · Airbus Helicopters AS332L, AS332L1, AS332L2 and 57 more. Effective Apr 20, 2022 - [AD 2021-19-17](https://openairdocs.org/ad/2021-19-17): Cabin Equipment/Furnishings, Passenger Compartment Equipment · Sikorsky S-92A. Effective Nov 22, 2021 - [AD 2021-08-18](https://openairdocs.org/ad/2021-08-18): Nose/Tail Landing Gear, Main Landing Gear · Sikorsky S-92A. Effective Apr 29, 2021 - [AD 2020-16-19](https://openairdocs.org/ad/2020-16-19): Rotor Drive Indicating System · Sikorsky S-92A. Effective Sep 21, 2020 - [AD 2019-13-05](https://openairdocs.org/ad/2019-13-05): Fuselage Main, Frame · Sikorsky S-92A. Effective Aug 29, 2019 - [AD 2018-19-09](https://openairdocs.org/ad/2018-19-09): Main Landing Gear and Nose Landing Gear · Sikorsky S-92A. Effective Oct 30, 2018 - [AD 2017-22-01](https://openairdocs.org/ad/2017-22-01): Autopilot System · Sikorsky S-92A. Effective Nov 8, 2017 - [AD 2017-10-10](https://openairdocs.org/ad/2017-10-10): Fire Detection · Sikorsky S-92A. Effective Aug 25, 2017 - [AD 2017-07-09](https://openairdocs.org/ad/2017-07-09): Tail Rotor Gearbox · Sikorsky S-92A. Effective May 12, 2017 - [AD 2017-02-51](https://openairdocs.org/ad/2017-02-51): Tail Rotor Control System · Sikorsky S-92A. Effective Mar 20, 2017 - [AD 2016-24-51](https://openairdocs.org/ad/2016-24-51): Tail Rotor Control System · Sikorsky S-92A. Effective Jan 12, 2017 - [AD 2016-21-02](https://openairdocs.org/ad/2016-21-02): Fire Bottle, Fixed · Sikorsky S-92A. Effective Nov 22, 2016 - [AD 2016-07-01](https://openairdocs.org/ad/2016-07-01): Main Hydraulic System · Sikorsky S-92A. Effective May 5, 2016 - [AD 2016-05-11](https://openairdocs.org/ad/2016-05-11): Rotorcraft Flight Control · Sikorsky S-92A. Effective Mar 28, 2016 - [AD 2015-11-10](https://openairdocs.org/ad/2015-11-10): Main Rotor Gearbox · Sikorsky S-92A. Effective Jul 14, 2015 - [AD 2014-12-11 R1](https://openairdocs.org/ad/2014-12-11-R1): Flight Compartment Equipment · Sikorsky S-92A. Effective Mar 13, 2015 - [AD 2013-19-16](https://openairdocs.org/ad/2013-19-16): JASC Code 2620, Extinguishing System · Sikorsky S-92A. Effective Nov 6, 2013 - [AD 2013-06-51](https://openairdocs.org/ad/2013-06-51): Equipment/Furnishings · Agusta A109, A109A, A109A II and 43 more. Effective Jul 15, 2013 - [AD 2013-10-01](https://openairdocs.org/ad/2013-10-01): Exterior lighting · Agusta AB139, AW139, MBB-BK 117 C-2 and 7 more. Effective Jun 20, 2013 - [AD 2012-22-09](https://openairdocs.org/ad/2012-22-09): Fuselage Main, Attach Fittings · Sikorsky S-92A. Effective Dec 20, 2012 - [AD 2012-14-08](https://openairdocs.org/ad/2012-14-08): Main Rotor Gearbox · Sikorsky S-92A. Effective Aug 1, 2012 - [AD 2012-08-01](https://openairdocs.org/ad/2012-08-01): Engine (Turbine/Turboprop) · Sikorsky S-92A. Effective May 24, 2012 - [AD 2012-06-24](https://openairdocs.org/ad/2012-06-24): Tail Rotor · Sikorsky S-92A. Effective May 15, 2012 - [AD 2011-16-04](https://openairdocs.org/ad/2011-16-04): Rotorcraft Flight Manual (RFM) · Sikorsky S-92A. Effective Nov 14, 2011 - [AD 2011-12-03](https://openairdocs.org/ad/2011-12-03): Main gearbox (MGB) upper housing assembly · Sikorsky S-92A. Effective Jun 17, 2011 - [AD 2010-24-04](https://openairdocs.org/ad/2010-24-04): Main gearbox (MGB) assembly · Sikorsky S-92A. Effective Dec 6, 2010 - [AD 2010-10-03](https://openairdocs.org/ad/2010-10-03): MGB filter bowl assembly · Sikorsky S-92A. Effective Jun 21, 2010 - [AD 2009-25-10](https://openairdocs.org/ad/2009-25-10): Main gearbox · Sikorsky S-92A. Effective Dec 21, 2009 - [AD 2009-13-01](https://openairdocs.org/ad/2009-13-01): Main gearbox (MGB) filter bowl assembly · Sikorsky S-92A. Effective Jul 1, 2009 - [AD 2007-17-05](https://openairdocs.org/ad/2007-17-05): Shaft and bearing assembly (shaft and bearing assembly) · Sikorsky S-92A. Effective Aug 21, 2007 - [AD 2006-15-19](https://openairdocs.org/ad/2006-15-19): Main gearbox (MGB) upper main housing assembly (housing assembly) · Sikorsky S-92A. Effective Aug 16, 2006 - [AD 2006-11-14](https://openairdocs.org/ad/2006-11-14): Main transmission assembly mounting bolt (bolt) · Sikorsky S-92A. Effective Jun 15, 2006 - [AD 2005-13-13](https://openairdocs.org/ad/2005-13-13): Tail gear box output housing · Sikorsky S-92A. Effective Jul 8, 2005 Historical (superseded or no longer in force): - [AD 2022-02-01](https://openairdocs.org/ad/2022-02-01) (historical): Main Rotor Mast/Swashplate · Sikorsky S-92A. Effective Feb 18, 2022 - [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021 - [AD 2021-04-16](https://openairdocs.org/ad/2021-04-16) (historical): Nose/Tail Landing Gear, Main Landing Gear · Sikorsky S-92A. Effective Apr 14, 2021 - [AD 2020-26-13](https://openairdocs.org/ad/2020-26-13) (historical): Horizontal Stabilizer Structure · Sikorsky S-92A. Effective Feb 1, 2021 - [AD 2017-14-03](https://openairdocs.org/ad/2017-14-03) (historical): Main Landing Gear and Nose Landing Gear · Sikorsky S-92A. Effective Aug 11, 2017 - [AD 2014-07-04 R1](https://openairdocs.org/ad/2014-07-04-R1) (historical): Main Hydraulic System · Sikorsky S-92A. Effective Sep 30, 2014 - [AD 2014-12-11](https://openairdocs.org/ad/2014-12-11) (historical): Flight Compartment Equipment · Sikorsky S-92A. Effective Sep 8, 2014 - [AD 2014-07-04](https://openairdocs.org/ad/2014-07-04) (historical): Main Hydraulic System · Sikorsky S-92A. Effective May 1, 2014 - [AD 2009-23-51](https://openairdocs.org/ad/2009-23-51) (historical): Main Gearbox (MGB) · Sikorsky S-92A. Effective Feb 19, 2010 - [AD 2009-07-53](https://openairdocs.org/ad/2009-07-53) (historical): Main gearbox filter bowl assembly studs · Sikorsky S-92A. Effective Apr 27, 2009 ## Information bulletins (advisory) (3) - [SAIB NE-14-14](https://openairdocs.org/saib/NE-14-14): Powerplant - Salt Encrustation. Issued Apr 14, 2014 - [SAIB SW-12-23](https://openairdocs.org/saib/SW-12-23): Sikorsky Aircraft Corporation Model S92A Fuselage Cabin Airframe Inspection. Issued Mar 29, 2012 - [SAIB SW-09-19](https://openairdocs.org/saib/SW-09-19): Sikorsky S92A Main Gearbox Emergency Procedures. Issued Mar 19, 2009 ## Registered aircraft (1) - [N851AR](https://openairdocs.org/aircraft/N851AR): [Tvpx Aircraft Solutions Inc Trustee](https://openairdocs.org/faa-owner/TVPX%20AIRCRAFT%20SOLUTIONS%20INC%20TRUSTEE), [North Salt Lake, UT](https://openairdocs.org/faa-place/UT/North%20Salt%20Lake), built 2010, S/N 920142 ## NTSB investigations None matched to aircraft with this model. ## FAA accident and incident reports None matched to aircraft with this model. ## Service difficulty reports (324, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR HEEA20261526001](https://openairdocs.org/sdr/HEEA20261526001), Oct 13, 2026: SENSOR. UNSERVICEABLE. #1 ENG OIL BYPASS ILLUMINATED APPROX. 75 MINUTES INTO FLIGHT. - [SDR AC2A202603069201](https://openairdocs.org/sdr/AC2A202603069201), Mar 4, 2026: BEARING. UNBONDED. PITCH CONTROL LINK UPPER ROD END ELASTOMER SEPARATED FROM CENTER BUSHING AFTER PICKING UP INTO A HOVER. COMPONENT REMAINED CAPTURED BUT PRODUCED A VIBRATION IN - [SDR U0GA2025120418345](https://openairdocs.org/sdr/U0GA2025120418345), Dec 3, 2025: UNKNOWN. ODOR. AFTER LEVELING OFF FROM TAKEOFF WE STARTED NOTICING THE SMELL OF FUEL WHICH SEEMED TO BE COMING FROM THE CABIN AREA OF THE AIRCRAFT. INITIALLY WE TURNED OFF THE - [SDR HEEA202511100001](https://openairdocs.org/sdr/HEEA202511100001), Nov 7, 2025: SENSOR. DIRTY. FADEC1 FAULT ILLUMINATED FOLLOWED BY FADEC 2 FAULT SEVERAL MINUTES LATER DURING CRUISE FLIGHT. RTB. DURING RTB BOTH CAS EXTINGUISHED PRIOR TO LANDING. - [SDR HEEA202510240001](https://openairdocs.org/sdr/HEEA202510240001), Oct 24, 2025: ADC. INOPERATIVE. NR 2 ADC FAIL IN CRUISE FLIGHT. PERFORMED APPROPRIATE CHECKLIST AND RETURNED TO HMAN. - [SDR HEEA202508180001](https://openairdocs.org/sdr/HEEA202508180001), Aug 15, 2025: APU. INOPERATIVE. DURING THE EXECUTION OF BEFORE LANDING CHECKS, THE AUXILIARY POWER UNIT (APU) FAILED TO START, AND THE APU FAIL CAUTION LIGHT ILLUMINATED. THE CREW FOLLOWED THE - [SDR HEEA202508080001](https://openairdocs.org/sdr/HEEA202508080001), Aug 5, 2025: WARNING LIGHT. ILLUMINATED. DURING CRUISE FLIGHT, IGB CHIP LIGHT ILLUMINATED. LANDED BACK AT DESTINATION PLATFORM. - [SDR HEEA202506200001](https://openairdocs.org/sdr/HEEA202506200001), Jun 17, 2025: ADC. INOPERATIVE. #2 ADC FAILED IN FLIGHT. - [SDR HEEA202505270001](https://openairdocs.org/sdr/HEEA202505270001), May 25, 2025: SENSOR. INOPERATIVE. APU FAIL CAUTION LIGHT ILLUMINATED DURING BEFORE LANDING CHECKS. - [SDR HEEA202403190001](https://openairdocs.org/sdr/HEEA202403190001), Mar 16, 2025: ACTUATOR. INOPERATIVE. ON INITIAL CLIMB OUT, LANDING GEAR FAILED TO RETRACT. EMERGENCY PROCEDURE PERFORMED AND GEAR HANDLE PLACED DOWN. DOWN LOCKED 3 GREEN INDICATION AND AIRCRAFT RET - [SDR HEEA202503100001](https://openairdocs.org/sdr/HEEA202503100001), Mar 5, 2025: APU. FAILED. BEFORE LANDING OFFSHORE, APU FAIL LIGHT ILLUMINATED. EMERGENCY PROCEDURE PERFORMED. RETURNED TO HOUMA. - [SDR AC2A202502289202](https://openairdocs.org/sdr/AC2A202502289202), Feb 28, 2025: SUPPORT FRAME. ELONGATED. DURING OUR INSPECTION, WE DISCOVERED WORKING HYLOC FASTENERS AT THE FS 345.6 FRAME AND THE BL -16.5 TRANSMISSION MOUNT INTERCOSTAL FITTING. WHEN WE GRABBED THE - [SDR AC2A202502289201](https://openairdocs.org/sdr/AC2A202502289201), Feb 28, 2025: FRAME. CORRODED. UPON INSPECTION OF THE L/H SPONSON UPPER CENTRAL ATTACHMENT POINT (FS 361) WE HAD EVIDENCE OF LOOSE HARDWARE. UPON REMOVAL OF HARDWARE, WE FOUND THE BOLTS CORRO - [SDR HEEA202502200001](https://openairdocs.org/sdr/HEEA202502200001), Feb 18, 2025: CHIP DETECTOR. LOOSE. DURING CRUISE FLIGHT, IGB HOT LIGHT ILLUMINATED. - [SDR HEEA202501310001](https://openairdocs.org/sdr/HEEA202501310001), Jan 27, 2025: PLATE. CRACKED. DURING DEPARTURE FROM MC782/DEEPWATER POSEIDON THE AIRCRAFT EXPERIENCED AN UN-COMMANDED, INFLIGHT SHUTDOWN OF THE #1 ENGINE. THE AIRCREW FOLLOWED THE CHECKLIST - [SDR AC2A202501209201](https://openairdocs.org/sdr/AC2A202501209201), Jan 20, 2025: SERVO. LEAKING. APPROXIMATELY 10 MINUTES INTO THE FLIGHT, THE AIRCRAFT EXPERIENCED A NO. 2 HYDRAULIC PUMP LOW CAS AND THE AIRCRAFT RETURNED TO BASE. UPON INSPECTION, WE DISCOVE - [SDR HEEA202501070003](https://openairdocs.org/sdr/HEEA202501070003), Jan 3, 2025: SWITCH. INOPERATIVE. LANDING GEAR WILL NOT RETRACT. - [SDR HEEA202501020001](https://openairdocs.org/sdr/HEEA202501020001), Dec 31, 2024: GEARBOX. MAKING METAL. LN CRUISE ON A FLIGHT FROM HMA TO GB-386 POSEIDON, A MGB CHLP CAUTION ILLUMINATED, FOLLOWED BY INPUT 2 CHIP CAUTION APPROXIMATELY 4 MINUTES LATER. CREW DEVIATED - [SDR HEEA202501070002](https://openairdocs.org/sdr/HEEA202501070002), Dec 29, 2024: CONTROL PANEL. INOPERATIVE. DURING CLIMB, LANDING GEAR WOULD NOT RETRACT WHEN GEAR HANDLE WAS RAISED. PILOT ELECTED TO LOWER GEAR HANDLE AND LAND. - [SDR HEEA202412290001](https://openairdocs.org/sdr/HEEA202412290001), Dec 29, 2024: CONTROL PANEL. INOPERATIVE. DURING CLIMB, LANDING GEAR WOULD NOT RETRACT WHEN GEAR HANDLE WAS RAISED. - [SDR HEEA202412060001](https://openairdocs.org/sdr/HEEA202412060001), Dec 2, 2024: CONTROL PANEL. INOPERATIVE. DURING TAKEOFF FROM HOUMA THE LANDING GEAR WOULD NOT RETRACT. - [SDR HEEA202409230001](https://openairdocs.org/sdr/HEEA202409230001), Sep 22, 2024: GEARBOX. MAKING METAL. #1 INPUT CHIP LIGHT ILLUMINATED. - [SDR U0GA2024091314429](https://openairdocs.org/sdr/U0GA2024091314429), Sep 13, 2024: WIRE HARNESS. DAMAGED. FIRE LIGHT FLASHES INTERMITTENTLY WITH NO AUDIO OR CAPTION LIGHT. : REMOVED AND REPLACED #2 ENGINE OUTBOARD FLAME DETECTOR HARNESS. OPERATIONAL CHECK GOOD. - [SDR U0GA2024091314425](https://openairdocs.org/sdr/U0GA2024091314425), Sep 12, 2024: CONNECTOR. CONTAMINATED. FIRE LIGHT FLASHES INTERMITTENTLY WITH NO AUDIO OR CAPTION LIGHT. DURING SHUTDOWN FIRE TEST OUTBOARD CIRCUIT BREAKER POPS WHEN TESTING. DRIED WATER FROM CONNECT - [SDR U0GA2024091314412](https://openairdocs.org/sdr/U0GA2024091314412), Sep 10, 2024: FIRE DETECTOR. CONTAMINATED. FIRE #2 ENG CAUTION AND AUDIO ACTIVATED DURING HEAVY RAIN AND STAYED "ON". FOUND WATER ON JUNCTION OF #2 INBOARD FIRE DETECTOR CONNECTOR HARNESS. CLEANED AND DR - [SDR U0GA2024090914391](https://openairdocs.org/sdr/U0GA2024090914391), Sep 8, 2024: CONNECTOR. CONTAMINATED. FIRE #2 ENGINE CAUTION LIGHT AND AUDIO WARNING ON FOR ONE MINUTE IN RAIN. INSPECTED #2 FIRE DETECTOR WIRE HARNESS AND DRIED CONNECTORS. TESTED SATISFACTORY. TL- - [SDR U0GA2024090914385](https://openairdocs.org/sdr/U0GA2024090914385), Sep 7, 2024: CONNECTOR. DIRTY. NO 2 ENGINE FIRE LIGHT ILLUMINATED IN HEAVY RAIN FOR 3 SECONDS WITH NO AUDIO WARNING. CLEANED #2 ENGINE FIRE DETECTOR CANNON PLUGS. OPS CHECK GOOD. REF. S92A AM - [SDR U0GA 202409014384](https://openairdocs.org/sdr/U0GA%20202409014384), Sep 7, 2024: CONNECTOR. DIRTY. NO #2 ENGINE FIRE LIGHT ILLUMINATED IN FLIGHT 10 MINUTES AFTER TAKE-OFF. CLEANED ALL ELECTRICAL CONNECTORS ON FLAME DETECTOR AND UPPER DECK. FIRE LIGHT WENT OFF - [SDR HEEA202409060001](https://openairdocs.org/sdr/HEEA202409060001), Sep 3, 2024: CONNECTOR. DIRTY. CHIP SYSTEMS FAULT AND IGB OIL HOT LIGHT ILLUMINATED. - [SDR HEEA202408300001](https://openairdocs.org/sdr/HEEA202408300001), Aug 27, 2024: GCU. INOPERATIVE. #1 GENERATOR FAILURE. - [SDR HEEA202408150001](https://openairdocs.org/sdr/HEEA202408150001), Aug 13, 2024: GENERATOR. INOPERATIVE. WHILE IN CRUISE FLT @ 4000 FT, THE AC #1 GENERATOR FAILED. AFTER FOLLOWING THE EMERGENCY PROCEDURE CHECKLIST, WE CUT OFF THE AC #1 GENERATOR AND CONTINUED TO OU - [SDR HEEA202407260001](https://openairdocs.org/sdr/HEEA202407260001), Jul 25, 2024: ENGINE. MAKING METAL. #2 ENGINE CHIP CAUTION LIGHT ON. - [SDR HEEA202407150001](https://openairdocs.org/sdr/HEEA202407150001), Jul 11, 2024: SENSOR. INOPERATIVE. ON OUTBOUND LEG, DURING CLIMB OUT, MGB PRESSURE INCREASED INTO THE PRECAUTIONARY (YELLOW) RANGE. RTB, DECLARED EMERGENCY, LANDED RUNWAY 36 AT HOUMA. - [SDR HEEA202406280001](https://openairdocs.org/sdr/HEEA202406280001), Jun 26, 2024: PROXIMITY SWITCH. INOPERATIVE. LANDING GEAR INITIALLY WOULD NOT RETRACT. AFTER CYCLING THE LANDING GEAR ONCE, IT FUNCTIONED PROPERLY AND RETRACTED. - [SDR HEEA202406170001](https://openairdocs.org/sdr/HEEA202406170001), Jun 13, 2024: GENERATOR. INOPERATIVE. APU FAIL CAUTION IN FLIGHT DURING BEFORE LANDING CHECKS. ATTEMPTS TO RESET THE GENERATOR WERE NOT SUCCESSFUL AND AIRCRAFT WAS RETURNED TO HMA. - [SDR HEEA202406140001](https://openairdocs.org/sdr/HEEA202406140001), Jun 13, 2024: WIRE HARNESS. INOPERATIVE. #2 ENGINE FIRE LIGHT ILLUMINATED WITH NO SECONDARY INDICATIONS. PERFORMED EMERGENCY PROCEDURES AND RETURNED TO BASE. - [SDR HEEA2024061100443](https://openairdocs.org/sdr/HEEA2024061100443), Jun 11, 2024: PYLON. CORRODED. CORROSION INSIDE HORIZONTAL STABILIZER IN NUMEROUS AREAS ON FITTINGS AND LONGERONS. - [SDR HEEA202406110149](https://openairdocs.org/sdr/HEEA202406110149), Jun 11, 2024: PYLON. CORRODED. EXCESSIVE CORROSION FOUND INSIDE OF VERTICAL TAIL PYLON. - [SDR HEEA202405210002](https://openairdocs.org/sdr/HEEA202405210002), May 10, 2024: FIRE DETECTOR. FALSE ACTIVATION. DURING CRUISE FLIGHT ENGINE #2 FIRE LIGHT AND AUDIO WOULD COME ON MOMENTARILY AND THEN EXTINGUISH MULTIPLE TIMES. WE THEN RETURNED TO BASE. - [SDR HEEA202405140001](https://openairdocs.org/sdr/HEEA202405140001), May 8, 2024: SWITCH. FAULTED. DOOR OPEN LIGHT ILLUMINATED UPON REACHING CRUISE FLIGHT. EMERGENCY PROCEDURE PERFORMED AND LIGHT EXTINGUISHED WHILE SLOWING AIRSPEED TO 80 KNOTS. VERIFIED THE D - [SDR HEEA202403210001](https://openairdocs.org/sdr/HEEA202403210001), Mar 20, 2024: PUMP. INOPERATIVE. HYD 2 RSVR LOW ILLUMINATED INITIALLY 2-3 MINUTES AFTER REACHING CRUISING ALTITUDE AND RESULTED IN HYD 2 FAILURE. REQUESTED TO RETURN TO KGLS. UPON RETURN HYD 2 - [SDR AC2R921GL03192024](https://openairdocs.org/sdr/AC2R921GL03192024), Mar 19, 2024: BUSHING. CRACKED. THREE OF THE BUSHINGS ON THE RH MOUNTING FOOT WAS FOUND TO BE FRACTURED. - [SDR U0GA2024030612717](https://openairdocs.org/sdr/U0GA2024030612717), Mar 5, 2024: FIRE DETECTOR. FAULTED. OUTBOUND LEVEL AT 3000' THE AIRCRAFT BEGAN TO GIVE INTERMITTENT APU FIRE WARNINGS. THE AIRCRAFT WAS TURNED BACK TO RETURN TO BASE AND THE FIRE WARNINGS STOPPED - [SDR HEEA202402190001](https://openairdocs.org/sdr/HEEA202402190001), Feb 17, 2024: CONTROL UNIT. INOPERATIVE. DURING CRUISE, #1 AC GENERATOR FAILED AND WOULD NOT RESET. THEN RETURNED TO BASE. - [SDR HEEA202402160001](https://openairdocs.org/sdr/HEEA202402160001), Feb 14, 2024: GENERATOR. INOPERATIVE. ON SHORT FINAL TO MV C-CONSTRUCTOR #2 GEN FAIL CAUTION LIGHT ILLUMINATED. CONDUCTED A WAVE-OFF INTO A HOLDING PATTERN. EXECUTED CHECKLIST TOR #2 GEN FAIL TO REC - [SDR HEEA202402050001](https://openairdocs.org/sdr/HEEA202402050001), Feb 3, 2024: ADC. INOPERATIVE. DURING CRUISE, #1 ADC FAILED, PERFORMED EMERGENCY PROCEDURES. - [SDR U0GA202402020001](https://openairdocs.org/sdr/U0GA202402020001), Feb 2, 2024: UNKNOWN. ODOR. WHILE ENROUTE TO GC468 ON HAA TASKING CREW STATED THAT THEY HAD A STRONG INDICATION OF FUEL SMELL. THE ODOR INCREASED AND CREW STATED THAT THEY WERE HAVING NEGA - [SDR HEEA202401310002](https://openairdocs.org/sdr/HEEA202401310002), Jan 27, 2024: GENERATOR. INOPERATIVE. DURING CRUISE, #2 AC GENERATOR FAILED CAUTION ILLUMINATED, AS WELL AS AP#2. EMERGENCY PROCEDURE PERFORMED PER THE CHECKLIST, #2 AC GENERATOR CAME BACK ONLINE. # - [SDR HEEA202312010001](https://openairdocs.org/sdr/HEEA202312010001), Dec 1, 2023: COMPASS. INOPERATIVE. AUTO PILOT FAILED IN FLIGHT DUE TO A HEADING MISCOMPARE. - [SDR HEEA202311280001](https://openairdocs.org/sdr/HEEA202311280001), Nov 28, 2023: PROCESSOR. INOPERATIVE. ENROUTE, AHRS #2 AND AP #1 & 2 FAILED, RETURNED TO HOUMA All 324: https://openairdocs.org/model/keystone-helicopter-s-92a/reports.md ## STCs that may be installed (OpenAirDocs) (120, first 50) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SR09460RC](https://openairdocs.org/stc/SR09460RC): Installation of a Cabin Door Replacement. Summit Aviation Inc - [STC SR12395IB](https://openairdocs.org/stc/SR12395IB): Camera Replacement Installation must be in accordance with Heli-One Master Drawing List. Heli-One Canada - [STC SR02443NY-D](https://openairdocs.org/stc/SR02443NY-D): Installation or a Night Vision Goggle (NVG) compatible Lighting system. ATI Engineering Services LLC - [STC SR04583CH](https://openairdocs.org/stc/SR04583CH): INSTALL HELITAK FT5000 FIRE TANK LIQUID DISPENSING SYSTEM. STANDARDAERO BUSINESS AVIATION SERVICES LLC - [STC SR02553NY](https://openairdocs.org/stc/SR02553NY): The Passenger Seating Configuration to be done. VIH Aerospace - [STC SR00160IB](https://openairdocs.org/stc/SR00160IB): Installation of Honeywell RDR-7000 Weather Radar as replacement of the existing Primus-70XA weather radar. SCANDINAVIAN AVIONICS DESIGN ApS - [STC SR09469RC](https://openairdocs.org/stc/SR09469RC): Installation of an Aft Cabin VIP lavatory. Summit Aviation Inc - [STC SR09470RC](https://openairdocs.org/stc/SR09470RC): Installation of a Cabin Extension and Modified Baggage Compartment. Summit Aviation Inc - [STC SR09471RC](https://openairdocs.org/stc/SR09471RC): Installation of a VIP State Interior. Summit Aviation Inc - [STC SR02158LA](https://openairdocs.org/stc/SR02158LA): Sikorsky S-92A Search and Rescue (SAR)/Cargo Smoke Seal Provisions. LifePort LLC - [STC SR01934LA](https://openairdocs.org/stc/SR01934LA): Installation of Search and Rescue (SAR)/Cargo interior configuration. Aeromatrix Composites - [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc - [STC SR00362BO](https://openairdocs.org/stc/SR00362BO): Installation of a Satcom Communications and Flight Data Monitoring System KIT S92-SAT-100. Outerlink Corporation - [STC SR00086IB](https://openairdocs.org/stc/SR00086IB): Installation of the SAR Grab Handles. VIH Aerospace Inc - [STC SR03370AT](https://openairdocs.org/stc/SR03370AT): Structural Provisions for a Composite Ramp Floor Panel. Aeromatrix Composites - [STC SR09926AC](https://openairdocs.org/stc/SR09926AC): Installation of Night Vision Imaging System (NVIS) / Night Vision Goggle (NVG) Compatible Lighting System. Aero Dynamix Inc - [STC SR04564NY](https://openairdocs.org/stc/SR04564NY): Installation of the SkyTrac ISAT Airborne Position / Data Communicator. SkyTrac Systems Ltd - [STC SR04485NY](https://openairdocs.org/stc/SR04485NY): Installation of a FWD LHS and/0r AFT RHS Emergency Hatch Bubble Window(s). Icarus Aero Inc - [STC SR00925DE](https://openairdocs.org/stc/SR00925DE): Installation of Garmin GTX 335/335R and GTX345/345R transponders to provide ADS-B Out and In functionality. Peregrine - [STC SR02560NY](https://openairdocs.org/stc/SR02560NY): Installation of LHS Crew Bubble Window. VIH Aerospace Inc - [STC SR04350NY](https://openairdocs.org/stc/SR04350NY): Installation of Cabin FWD LHS/AFT RHS Emergency Hatch Bubble Windows. Canadian Helicopters Limited - [STC SR04337NY](https://openairdocs.org/stc/SR04337NY): Installation of SkyTrac ISAT Airborne Position/Data Communicator. SkyTrac Systems Ltd - [STC SR01948LA](https://openairdocs.org/stc/SR01948LA): Installation of a triple litter stacking system. LifePort LLC - [STC SR02666CH](https://openairdocs.org/stc/SR02666CH): Install air ambulance conversion. Spectrum Aeromed LLC dba Spectrum Aeromed - [STC SR00917DE](https://openairdocs.org/stc/SR00917DE): Installation of Concorde VRLA battery. Concorde Battery Corporation - [STC SR00826DE](https://openairdocs.org/stc/SR00826DE): Installation of Honeywell Sky Connect Tracker III system. Cert Works LLC - [STC SR02547SE](https://openairdocs.org/stc/SR02547SE): Installation of a Supplemental Lighting System. Aviation Specialties Unlimited Inc - [STC SR02629LA](https://openairdocs.org/stc/SR02629LA): Installation of Engine Inlet Barrier Filter System. Aerometals - [STC SR02402NY](https://openairdocs.org/stc/SR02402NY): Installation of Alternate Utility Interior. Sikorsky Aircraft Corporation - [STC SR02685CH](https://openairdocs.org/stc/SR02685CH): Install Internal Cargo Handling System. Telair US LLC - [STC SR02436NY-D](https://openairdocs.org/stc/SR02436NY-D): Installation of High Intensity Strobe Light (HISL) System. Sikorsky Aircraft Corporation - [STC SR01973NY-D](https://openairdocs.org/stc/SR01973NY-D): Installation of Keystone Helicopter Replacement Mid Cabin Floor Panel. Sikorsky Aircraft Corporation - [STC SR01974NY-D](https://openairdocs.org/stc/SR01974NY-D): Installation of a Keystone Helicopter Baggage Retention System. Sikorsky Aircraft Corporation - [STC SR01975NY-D](https://openairdocs.org/stc/SR01975NY-D): Installation of a Keystone Helicopter Entry Handrail System. Sikorsky Aircraft Corporation - [STC SR01976NY-D](https://openairdocs.org/stc/SR01976NY-D): Installation of a Keystone Helicopter Auxiliary Gauges and Relocation of Fill Ports for the Low Float Pressure Warning System. Sikorsky Aircraft Corporation - [STC SR01977NY-D](https://openairdocs.org/stc/SR01977NY-D): Installation of a Sunvisor System. Sikorsky Aircraft Corporation - [STC SR02103NY-D](https://openairdocs.org/stc/SR02103NY-D): Installation of an Aisle Lighting System. Sikorsky Aircraft Corporation - [STC SR02104NY-D](https://openairdocs.org/stc/SR02104NY-D): Installation of a Universal Cockpit Display (UCD) System. Sikorsky Aircraft Corporation - [STC SR02105NY-D](https://openairdocs.org/stc/SR02105NY-D): Installation of Gooseneck Lighting System. Sikorsky Aircraft Corporation - [STC SR02106NY-D](https://openairdocs.org/stc/SR02106NY-D): Installation of a Heads-Up Technologies CMS-400A checklist management system. Sikorsky Aircraft Corporation - [STC SR02107NY-D](https://openairdocs.org/stc/SR02107NY-D): Installation of a Honeywell JetMap II System. Sikorsky Aircraft Corporation - [STC SR02108NY-D](https://openairdocs.org/stc/SR02108NY-D): Installation of an executive VIP interior. Sikorsky Aircraft Corporation - [STC SR02112NY-D](https://openairdocs.org/stc/SR02112NY-D): Installation of a Main Gear Box Oil Drip Pan modification. Sikorsky Aircraft Corporation - [STC SR02113NY-D](https://openairdocs.org/stc/SR02113NY-D): Installation of Cockpit Provisional Storage Containers. Sikorsky Aircraft Corporation - [STC SR02115NY-D](https://openairdocs.org/stc/SR02115NY-D): Installation of External Camera System. Sikorsky Aircraft Corporation - [STC SR02119NY-D](https://openairdocs.org/stc/SR02119NY-D): Installation of an Utility Lavatory. Sikorsky Aircraft Corporation - [STC SR02121NY-D](https://openairdocs.org/stc/SR02121NY-D): Installation of a shelves (Station 643 and/or Station 520). Sikorsky Aircraft Corporation - [STC SR02124NY-D](https://openairdocs.org/stc/SR02124NY-D): Installation of Jettisonable windows (Cabin &/or Emergency Exit). Sikorsky Aircraft Corporation - [STC SR02125NY-D](https://openairdocs.org/stc/SR02125NY-D): Installation of Cockpit Pressure Refueling Control System. Sikorsky Aircraft Corporation - [STC SR02126NY-D](https://openairdocs.org/stc/SR02126NY-D): Installation of a SkyTrac Systems ISAT-100 system. Sikorsky Aircraft Corporation All 120: https://openairdocs.org/model/keystone-helicopter-s-92a/stcs.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Sikorsky S-92A](https://openairdocs.org/model/sikorsky-s-92a): 44 registered aircraft, registry code 8141832 - [Sikorsky S-92A](https://openairdocs.org/model/sikorsky-s-92a): 5 registered aircraft, registry code 8140300 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.