# Sikorsky S-76 - Type: Aircraft model (FAA registry) - Registry code: 8143010 - Manufacturer (registry): SIKORSKY - Model: S-76 - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 2 · Turbo-shaft - Seats: 14 - Weight class: Up to 12,499 lb - Certification: Type certificated - Data sheet: [TCDS H1NE](https://openairdocs.org/tcds/H1NE) (OpenAirDocs) - Holder: Sikorsky Aircraft Corporation - Registered aircraft: 4 - Page: https://openairdocs.org/model/sikorsky-s-76 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. None matched. ## Registered aircraft (4) - [N176ET](https://openairdocs.org/aircraft/N176ET): [San Juan Aviation LLC](https://openairdocs.org/faa-owner/SAN%20JUAN%20AVIATION%20LLC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 1980, S/N 760095 - [N5447C](https://openairdocs.org/aircraft/N5447C): [Mansfield Heliflight Inc](https://openairdocs.org/faa-owner/MANSFIELD%20HELIFLIGHT%20INC), [Milton, VT](https://openairdocs.org/faa-place/VT/Milton), S/N 760180 - [N764MH](https://openairdocs.org/aircraft/N764MH): [Gm Leasing Co LLC](https://openairdocs.org/faa-owner/GM%20LEASING%20CO%20LLC), [Broussard, LA](https://openairdocs.org/faa-place/LA/Broussard), S/N 760181 - [N919SF](https://openairdocs.org/aircraft/N919SF): [Air Er LLC](https://openairdocs.org/faa-owner/AIR%20ER%20LLC), [Corinth, TX](https://openairdocs.org/faa-place/TX/Corinth), built 1991, S/N 760370 ## NTSB investigations (6) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB DFW05MA230](https://openairdocs.org/ntsb/DFW05MA230), Sep 6, 2005: Sikorsky S76 (N90421), Gulf of Mexico, TX, destroyed. Probable cause: The pilots' delayed response to the No. 1 engine fire warning and the loss of power to both engines, which occurred for undetermined reasons. The pilots' delayed response was most likely due to… - [NTSB CHI95FA035](https://openairdocs.org/ntsb/CHI95FA035), Nov 9, 1994: Sikorsky S-76A (N2620), Cameron, LA, destroyed, 1 fatal. Probable cause: the copilot's failure to maintain altitude and the pilot-in-command's inadequate supervision of the operation. Factors include the dark night and low ceiling, and the flightcrew's failure to set the… - [NTSB FTW92LA155](https://openairdocs.org/ntsb/FTW92LA155), Jun 14, 1992: Sikorsky S-76A (N2620), Morgan City, LA, substantial damage. Probable cause: THE SECOND PILOT'S FAILURE TO MAINTAIN AIRCRAFT CONTROL. - [NTSB NYC88LA204](https://openairdocs.org/ntsb/NYC88LA204), Aug 7, 1988: Sikorsky S-76A (N69WW), Teterboro, NJ, substantial damage - [NTSB FTW85LA268](https://openairdocs.org/ntsb/FTW85LA268), Jun 28, 1985: Sikorsky S-76 (N5404Y), Eugene Island, substantial damage - [NTSB FTW84IA094](https://openairdocs.org/ntsb/FTW84IA094), Nov 9, 1983: Sikorsky S76A (N5444X), Cameron, LA, incident, minor damage ## FAA accident and incident reports (17) 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 20120406007709I](https://openairdocs.org/incident/20120406007709I), Apr 6, 2012: Sikorsky S-76 (N792P), Boothville, LA, Minor damage. Crew was performing a post-maintenance check flight after the replacement of the number one verticial gyro. After lifting to a hover the autopilot caused the… - [Incident 20110305003579I](https://openairdocs.org/incident/20110305003579I), Mar 5, 2011: Sikorsky S-76 (N5402T), Santa Maria, CA, Minor damage. Instructor pilot failed to complete the landing checklist during one engine out training and did not lower the landing gear. PIC stated that aircraft was at… - [Incident 20090324005749I](https://openairdocs.org/incident/20090324005749I), Mar 24, 2009: Skrsky S76 (N792P), Gulfofmexico, US, Minor damage. (-23) At approximately 11:35 local on March 24, 2008, N792P, a SK-76A++ helicopter landed hard on ST-308, a helideck located in the gulf of Mexico. During the… - [Accident 20050906020739A](https://openairdocs.org/incident/20050906020739A), Sep 6, 2005: Skrsky S76A (N90421), Sabine Pass, TX, Destroyed. (-23) On September 6, 2005, a Sikorsky sk 76-A, N90421, departed on a flight from the bob keller located at N28.04- W94.22 in the gulf of mexico-high island… - [Incident 20050125001529I](https://openairdocs.org/incident/20050125001529I), Jan 25, 2005: Skrsky S76 (N90421), Cameron, LA, Minor damage. (-23) At approximately 0730, N90421, a SK-76A with 10 passengers and a crew of 2 were due to depart Cameron, LA. To an offshore platform (HI-296). Pilots were… - [Incident 19950902045209I](https://openairdocs.org/incident/19950902045209I), Sep 2, 1995: Skrsky S76 (N5402T), Leesville, LA, Minor damage. Narrative: during approach to the platform, winds were from the north-northwest on the axis of the approach. Upon crossing the threshold of the platform, the… - [Incident 19950602025639I](https://openairdocs.org/incident/19950602025639I), Jun 2, 1995: Skrsky S76A (N5446E), Patterson, LA. Returning to onshore base. NR1 hydraulic light and fire light shorted wires in light. Defect tail rotor jam servo. - [Incident 19950329013369I](https://openairdocs.org/incident/19950329013369I), Mar 29, 1995: Skrsky S76 (N5444X), Intracoastal Ci, LA, Minor damage. At cruise loud bang and vibration. Landed on beach. One third of ridge cap trailing edge missing. - [Incident 19950214010249I](https://openairdocs.org/incident/19950214010249I), Feb 14, 1995: Skrsky S76A (N5414X), Patterson, LA. Narrative: on February 14, 1995, a Sikorsky S76A helicopter, experienced a binding in the anti-torque pedals. The pedals subsequently went full left… - [Incident 19950213011429I](https://openairdocs.org/incident/19950213011429I), Feb 13, 1995: Skrsky S76 (N5426U), Quenton, KY. Narrative: upon approach to the Heliport, aircraft N5426U experienced an unsafe landing gear indication. The emergency procedures were accomplished with no… - [Accident 19941108037829A](https://openairdocs.org/incident/19941108037829A), Nov 8, 1994: Skrsky S76A (N2620), Cameron, LA, Destroyed, 1 fatal. Brokeout visual over water on approach to airport. Flew into water. Failed check altitude and descent. - [Accident 19920614020049A](https://openairdocs.org/incident/19920614020049A), Jun 14, 1992: Skrsky S76A (N2620), Morgan City, LA, Substantial damage. Oil cooler blower shaft sheared. Oil red lined. Returned. Struck concrete helipad lip on taxi after landing. - [Incident 19881116066229I](https://openairdocs.org/incident/19881116066229I), Nov 16, 1988: Skrsky S76A (N90421), Leesville, LA. Landed on deck. Ship rolled and helicopter slid. Took off. Engine malfunctioned. Forced landing on water. - [Accident 19880807046409A](https://openairdocs.org/incident/19880807046409A), Aug 7, 1988: Skrsky S76 (N69WW), Teterboro, NJ, Substantial damage. A wheel hit soft spot while turning to park causing the helicopter to enter dynamic roll over. Stopped on its side. - [Incident 19880309012789I](https://openairdocs.org/incident/19880309012789I), Mar 9, 1988: Skrsky S76 (N2620), Venice, LA, Minor damage. Struck a wire while making an emergency landing on a highway. Fuel control failure on engine. - [Accident 19850628028759A](https://openairdocs.org/incident/19850628028759A), Jun 28, 1985: Skrsky S76 (N5404Y), Eugene Island, LA, Substantial damage. Rolled backward after landing on platform. Wheel went into net, aircraft flipped inverted into water. - [Incident 19831108074489I](https://openairdocs.org/incident/19831108074489I), Nov 8, 1983: Skrsky S76A (N5444X), Cameron, LA, Minor damage. #2 Engine bearing failed on climbout. Turbine wheel disentregated. Gear collapsed on landing. Fire in engine case. ## Service difficulty reports (185, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR CA140822012](https://openairdocs.org/sdr/CA140822012), Aug 21, 2014: GEARBOX. MAKING METAL. (CAN) MGB, WAS RECEIVED INTO THE SHOP DUE FOR METAL CONTAMINATION. FOUND DULL DARK METAL CHIPS. REPORTS ALSO INCLUDE DESCRIPTION OF SMALL FLAKES FOUND. - [SDR CA140717010](https://openairdocs.org/sdr/CA140717010), Jul 16, 2014: HOUSING. CRACKED. (CAN) MAIN GEAR BOX LOWER HOUSING CRACKING. HOUSING SENT TO ENGINEERING FOR EVALUATION. - [SDR CA140130017](https://openairdocs.org/sdr/CA140130017), Jan 29, 2014: HOUSING. CRACKED. (CAN) CARRIED OUT AN NDT INSPECTION ON THREE SEPARATE MAIN GEAR BOX LOWER HOUSINGS, ALL THREE LOWER HOUSINGS WERE FOUND TO HAVE CRACKS IN SIMILAR LOCATIONS. CRA - [SDR 2013FA0000669](https://openairdocs.org/sdr/2013FA0000669), Nov 12, 2013: BEARING. WRONG PART. BEARING OUTER RACE FOUND TO BE 0.004 UNDERSIZED. - [SDR CA091214007](https://openairdocs.org/sdr/CA091214007), Dec 10, 2009: HOUSING. FLAKING. (CAN) FOLLOWING WASH OF ENTIRE UPPER HOUSING, WATER WASH OF OIL PASSAGES AND ADHESION TEST, IT WAS NOTED THAT THE PROTECTIVE COATING WAS FLAKING IN ONE AREA OF - [SDR CA090812003](https://openairdocs.org/sdr/CA090812003), Aug 7, 2009: GEARBOX. PEELING. FOLLOWING CLEANING AND AIR PRESSURE DRYING OF UPPER HSG THE TECH NOTICED THAT THE PROTECTIVE COATING STARTING TO PEEL AWAY AT 4 AREAS INTERNALLY AT TOP PORTION - [SDR CA090522002](https://openairdocs.org/sdr/CA090522002), May 20, 2009: TRIPOD. CRACKED. (CAN) WELD ON LEG OF ENGINE MOUNT CRACKED (SHORT LEG) - [SDR CA090521003](https://openairdocs.org/sdr/CA090521003), May 1, 2009: TRIPOD. CRACKED. (CAN) WELD ON LEG OF ENGINE MOUNT CRACKED. - [SDR CA081128004](https://openairdocs.org/sdr/CA081128004), Nov 27, 2008: BEARING. DAMAGED. (CAN) MGB CHIP LIGHT INDICATIONS MGB P/N:76351-09600-044 S/N:A231-00299 REC`D AT HELI-ONE FOR REPAIR. TSN:2037:48 HRS. FOLLOWING DISASSY AND INSP OF MGB THE RT - [SDR CA081128003](https://openairdocs.org/sdr/CA081128003), Nov 27, 2008: GEARBOX. FAILED. (CAN) MGB CHIP LIGHT INDICATION MGB PN:76351-09600-044,SN:A231-00107 REC`D AT HELI-ONE FOR REPAIR. TSN:8638:39 TSO:2516:54 FOLLOWING DISASSEMBLY AND INSPECTION - [SDR CA081127004](https://openairdocs.org/sdr/CA081127004), Sep 11, 2008: CONE. DAMAGED. (CAN) INSPECTION OF CAGE SHAKE ON TAPERED ROLLER BRGS PN: SB3354-102 WAS DIMENSIONALLY INSPECTED IAW (SA4047-76-7-8 CHANGE 9, 31/MARCH/2006 IAW PARA. 2-52A) AND - [SDR CA081127007](https://openairdocs.org/sdr/CA081127007), Jul 8, 2008: SHAFT. CORRODED. (CAN) MGB PN:76351-09600-044 SN:A231-00044 IN FOR OVERHAUL. FOLLOWING CLEANING AND INSP OF NEW SPLINE SHAFT, CORROSION WAS FOUND AT INNER AND OUTER SPLINES. ALL - [SDR CA081127008](https://openairdocs.org/sdr/CA081127008), Jun 20, 2008: PINION GEAR. CORRODED. (CAN) CORROSION PITTING FOUND ON BORE ID OF (2) HELICAL PINIONS HSI (P.A.P) MGB PN:76351-09500-044 SN:A081-00196 REC`D FOR O/H. PRIOR TO ASSY INSP OF NEW CUSTOM - [SDR CA081127009](https://openairdocs.org/sdr/CA081127009), Jun 11, 2008: SHAFT. CORRODED. (CAN) CORROSION FOUND ON NEW QUILL SHAFT MAIN GEARBOX O/H PN:76351-09500-044, SN:A081-00110 FOLLOWING CLEANING AND INSPECTION OF NEW QUILL SHAFT (P/N,S/N LISTED - [SDR MV1R200808061](https://openairdocs.org/sdr/MV1R200808061), Apr 2, 2008: SHAFT. CRACKED. OIL LEAK FROM OUTPUT SHAFT NR 1 ENGINE. INSPECTED AREA NO DEFECTS FOUND AT THAT TIME. REPLACED SHAFT SEAL. GROUND OPS AND LEAK CHECK GOOD. AFTER FLIGHT OIL LEAK - [SDR ALG2005F00120](https://openairdocs.org/sdr/ALG2005F00120), Nov 7, 2005: ENGINE. FAILED. ON PRELANDING CHECK, ENGINE OIL PRESSURE DECREASED AND OIL TEMPERATURE INCREASED ABOVE THE RED LINE. ON LONG FINAL TO THE BASE, SHUTDOWN NR 1 ENGINE. AFTER LAND - [SDR ALG2005F00074](https://openairdocs.org/sdr/ALG2005F00074), Sep 8, 2005: SHAFT. SHEARED. DURING CRUISE FLIGHT, GENERATOR CAUTION ILLUMINATED AND WOULD NOT RESET. LANDED ON EI-120 AND NOTIFIED MAINTENANCE. STARTED/GENERATOR SHAFT FOUND SHEARED. REMOV - [SDR ALG2005F00039](https://openairdocs.org/sdr/ALG2005F00039), Jul 16, 2005: CONNECTOR. FAULTY. ON PRE START, NR 1 ENGINE FIRE TEE HANDLE LIGHTS WOULD NOT TEST IN FORWARD POSITION. THE MECHANIC REMOVED AND REPLACED THE FAULTY CONNECTOR AND THE AIRCRAFT WAS - [SDR ALG2005F00044](https://openairdocs.org/sdr/ALG2005F00044), Jul 11, 2005: AMPLIFIER. MALFUNCTIONED. PRIOR TO TAKEOFF THE PILOT NOTICED NR 1 ENGINE FIRE LIGHT AND TONE ACTIVATED. AFTER SHUTDOWN, PASSENGERS WERE EVACUATED AND THE PILOT AND COPILOT VISUALLY CHECK - [SDR ALG2005F00037](https://openairdocs.org/sdr/ALG2005F00037), Jul 1, 2005: BATTERY. INOPERATIVE. DURING FLIGHT, THE BATTERY HOT LIGHT CAME ON, THEN THE BTTERY OFF LIGHT CAME ON. THE PILOT FOLLOWED THE EMERGENCY CHECK LIST AND LANDED. THE MECHANIC REMOVED AN - [SDR EGRA2005212](https://openairdocs.org/sdr/EGRA2005212), Jan 22, 2005: ACTUATOR. FROZEN. AIRCRAFT WAS LIFTED TO HOVER PRIOR TO FLIGHT. CONTROL INPUTS SEEMED SLUGGISH AS IF AFCS WAS OFF. AIRCRAFT WAS IMMEDIATELY LANDED, AFCS SYSTEM WAS CONFIRMED ON. - [SDR ALG2005F00011](https://openairdocs.org/sdr/ALG2005F00011), Jan 5, 2005: WIRE. BROKEN. DURING LANDING PHASE TO MC506 (OCEAN VICTORY) THE LANDING GEAR WOULD NOT EXTEND. NOTICED THE CIRCUIT WAS OUT. TRIED TO RESET IT BUT WOULD NOT STAY IN. DIVERTED - [SDR RG82005F00000](https://openairdocs.org/sdr/RG82005F00000), Nov 7, 2004: FASTENER. LOOSE. AFTER LANDING, PILOT PERFORMING POST-FLIGHT CHECK NOTICED LARGE AMOUNT OF OIL ON GROUND. UPON FURTHER INSPECTION IT WAS DISCOVERED THAT A FASTENER, PN 955015806 - [SDR ALG2004F00056](https://openairdocs.org/sdr/ALG2004F00056), Oct 9, 2004: AMPLIFIER. INOPERATIVE. IN CRUISE FLIGHT, BOTH ENGINES STARTED SURGING, EMERGENCY CHECK LIST COMPLIED WITH AND RUN ON LANDING. MAINTENANCE COMPLIED WITH VISUAL INSP OF BOTH ENGINES AND - [SDR ALG2004F00061](https://openairdocs.org/sdr/ALG2004F00061), Sep 16, 2004: AMPLIFIER. INOPERATIVE. ON TAKE OFF, IN FLIGHT THE NR 1 FIRE WARNING LIGHTS AND TONE CAME ON, HAD NO OTHER INDICATION OF FIRE. MAINTENANCE REMOVED CONTROL AMPLIFIER AND INSTALLED SERVI - [SDR ALG2004F00054](https://openairdocs.org/sdr/ALG2004F00054), Sep 16, 2004: AMPLIFIER. UNSERVICEABLE. ON TAKE OFF, IN FLIGHT, THE NR 1 FIRE WARNING LIGHTS AND TONE CAME ON, HAD NO OTHER INDICATION OF FIRE. MAINTENANCE REMOVED CONTROL AMPLIFIER AND INSTALLED SERV - [SDR 2004F00357](https://openairdocs.org/sdr/2004F00357), Aug 4, 2004: FITTING. BROKEN. ON DEPARTURE HEARD LOUD BANG AS LANDING GEAR WAS RETRACTED. THE NOSE GEAR WOULD NOT LOCK IN THE UP POSITION, RETURNED TO HMA AND MAINTENANCE FOUND THE DOOR STRU - [SDR ERAA096636](https://openairdocs.org/sdr/ERAA096636), May 15, 2004: ELT. DEFECTIVE. ELT DEFECTIVE INERTIA, G SWITCH TOO SENSITIVE. SENT TO ARTEX FOR REPAIR. FOUND ELT MOUNTED AT 45 DEGREES, SHOULD BE HORIZONTAL. TESTED IAW ARTEX PROCEDURES, REI - [SDR ALG2004F00014](https://openairdocs.org/sdr/ALG2004F00014), Mar 5, 2004: AMPLIFIER. INOPERATIVE. THE BAGGAGE SMOKE DETECTOR CAUTION LIGHT CAME ON 3 TIMES OVER A TWO MINUTE PERIOD. THERE WAS NO OTHER INDICATION OF FIRE OR SMOKE, WITH THE LIGHT OUT WE LANDED. - [SDR ALG2003F00105](https://openairdocs.org/sdr/ALG2003F00105), Nov 30, 2003: CHIP DETECTOR. CONTAMINATED. AT A HOVER READY FOR TAKEOFF, NUMBER ONE ENGINE CHIP LIGHT ILLUMATED AT A HOVER. HAD LANDED AT GALLIANO TO REFUEL. MAINTENANCE FOUND ONE SLIVER ON AFT CHIP PLUG - [SDR ERAA092660](https://openairdocs.org/sdr/ERAA092660), Oct 9, 2003: TIP CAP. CRACKED. LEADING EDGE CRACKED AWAY FROM FIBERGLASS. SENT TO CTI. INSPECTED IAW SA4047-76-5 REV 11; REPLACED ABRASION STRIP IAW RS-005N-III. REPAIRED SKIN AT LEADING EDGE - [SDR ALG2003F00084](https://openairdocs.org/sdr/ALG2003F00084), Aug 27, 2003: ODOR. DETECTED. ON TAKE OFF. JUST AS AIRCRAFT CLEARED HELIPORT DEPARTING EI333; DETECTED ODOR SIMILAR TO OVERHEATED BRAKE OIL OR CLUTCH MATERIAL. HAD NO CAUTION, WARNING OR ADV - [SDR ALG2003F00096](https://openairdocs.org/sdr/ALG2003F00096), Jun 26, 2003: WARNING LIGHT. FALSE INDICATION. PRIOR TO TAKE OFF, DURING THE FLOAT SYSTEM TEST, WHEN THE TEST SWITCH WAS PLACED IN THE TEST POSITION ALL CAUTION LIGHTS ILLUMINATED. (SAME AS PRESSING CAUTION - [SDR ERAA087101](https://openairdocs.org/sdr/ERAA087101), May 20, 2003: BLADE. CRACKED. SPAR HAS A FIBERGLASS SPLINTER STICKING OUT AND LEADING EDGE STRIP IS CRADKED ON ONE BLADE. AREA OF SPLINTER UT INSPECTED PER 2ATI 3098, NO DELAMINATION FOUND S - [SDR CA030416005](https://openairdocs.org/sdr/CA030416005), Apr 16, 2003: SEAL. LEAKING. (CAN) NEW SEALS HAVE BEEN FOUND TO BE LEAKING FROM NEW. THESE ARE A NEW P/N RELEASED BY SIKORSKY AND SEVERAL CUSTOMER COMPLAINTS HAVE BEEN RECEIVED. NEW SEALS F - [SDR ALG2003F218A](https://openairdocs.org/sdr/ALG2003F218A), Jan 15, 2003: PLUG. DEBONDED. DISCOVERED DURING ROUTINE MAINTENANCE INSPECTION. SPAR ELLIPTICAL PLUG 100 PERCENT DEBONDED. NEW PLUG INSTALLED AT MFG O AND R 12-26-00 AT COMPONENT TOTAL TIME - [SDR ALG2003F00016](https://openairdocs.org/sdr/ALG2003F00016), Nov 18, 2002: BULB. FAILED. DURING PREFLIGHT CHECK, BAGGAGE COMPARTMENT SMOKE DETECTOR WOULD NOT TEST, THE MECHANIC REPLACED THE BULB AND THE AIRCRAFT WAS RETURNED TO SERVICE. - [SDR ALG2003F00034](https://openairdocs.org/sdr/ALG2003F00034), Oct 29, 2002: BLADE. VIBRATION. DURING FLIGHT, PILOT ENCOUNTERED MODERATE VIBRATION OF MAIN ROTOR FOR 3 SECONDS IN CRUISE FLIGHT THEN IT CEASED. THE AIRCRAFT WAS DIVERTED TO LAFOURCHE AIRPORT - [SDR ALG2003F00038](https://openairdocs.org/sdr/ALG2003F00038), Oct 19, 2002: FIRE DETECTOR. WILL NOT TEST. DURING PREFLIGHT START, AFT BAGGAGE FIRE DETECTION SYSTEM DID NOT TEST. THE MECHANIC REMOVED AND REPLACED THE SMOKE DETECTOR. - [SDR ALG2003F00040](https://openairdocs.org/sdr/ALG2003F00040), Oct 16, 2002: AMPLIFIER. INOPERATIVE. DURING GROUND RUN UP, NR 2 ENGINE FIRE DETECTION ACTIVATED. THE MECHANIC REMOVED AND REPLACED THE NR 2 ENGINE CONTROL AMP AND THE AIRCRAFT WAS RETURNED TO SERVI - [SDR ALG2003F00039](https://openairdocs.org/sdr/ALG2003F00039), Oct 15, 2002: CONNECTOR. CORRODED. DURING FLIGHT, NR 2 ENGINE FIRE CAUTION LIGHT ILLUMINATED ALONG WITH TWO LIGHTS ON THE (T) HANDLE. NO OTHER INDICATION THAT FIRE DID EXIST (T PERCENT, N1, N2 NO - [SDR ALG2003F00003](https://openairdocs.org/sdr/ALG2003F00003), Oct 12, 2002: CHIP DETECTOR. DIRTY. DURING FLIGHT, NR 1 ENGINE CHIP DETECTOR LIGHT ILLUMINATED, THE PILOT FOLLOWED CORRECTIVE ACTION IAW EMERGENCY CHECKLIST, UPON LANDING THE MECHANIC REMOVED AND - [SDR ALG2003F00053](https://openairdocs.org/sdr/ALG2003F00053), Oct 7, 2002: FUEL NOZZLE. INOPERATIVE. AFTER DROOP COMPENSATOR CHECK, THE PILOT SET THE NR 2 ENGINE TO 100 PERCENT AND ADJUSTED THE NR 1 ENGINE TO 100 PERCENT. THEN THE NR 1 ENGINE FAILED (FLAMED OUT - [SDR ALG2003F00052](https://openairdocs.org/sdr/ALG2003F00052), Oct 7, 2002: FUEL CONTROL. INOPERATIVE. DURING RUN-UP, AFTER DROOP COMPENSATOR CHECK, THE PILOT SET THE NR 2 ENGINE TO 100 PERCENT AND ADJUSTED THE NR 1 ENGINE TO 100 PERCENT. THEN THE NR 1 ENGINE FAI - [SDR ALG2003F00051](https://openairdocs.org/sdr/ALG2003F00051), Oct 7, 2002: GOVERNOR. INOPERATIVE. DURING RUN-UP, AFTER DROOP COMPENSATOR CHECK, THE PILOT SET THE NR 2 ENGINE TO 100 PERCENT AND ADJUSTED THE NR 1 ENGINE TO 100 PERCENT. THEN THE NR 1 ENGINE FAI - [SDR 2002F00882](https://openairdocs.org/sdr/2002F00882), Sep 12, 2002: BLADE. CRACKED. DURING A PREFLIGHT INSPECTION, THE MAIN ROTOR BLADE WAS FOUND TO BE DEBONDING AT STATION 57.75 THROUGH 77.75. THERE WAS A SMALL VOID, 1.25 INCHES, AT STATION 78 - [SDR EGR2002F00010](https://openairdocs.org/sdr/EGR2002F00010), Sep 2, 2002: CONNECTOR. CONTAMINATED. NR 1 ENGINE FIRE DETECTOR LIGHT ILLUMINATED ON SHORT FINAL FOR 4 SECONDS, IN HEAVY RAIN WITHOUT AUDIO SIGNAL DURING RUN UP. TRANSMISSION BEARING CAUTION LIGHT I - [SDR ALG2002F00062](https://openairdocs.org/sdr/ALG2002F00062), Aug 16, 2002: RADAR. FAILED. IN CRUISE FLIGHT, RADAR WORKING INTERMITTENTLY FOLLOWED BY SMOKE IN THE COCKPIT. - [SDR ALG2002F00057](https://openairdocs.org/sdr/ALG2002F00057), Mar 18, 2002: TURBINE WHEEL. CORRODED. TURBINE WAS REMOVED FROM AIRCRAFT DUE TO LOW POWER. REMOVED COMBUSTION SECTION AND FOUND SULPHADATION ON NR 1 WHEEL BLADES. - [SDR AC2A0000301](https://openairdocs.org/sdr/AC2A0000301), Dec 27, 2001: THERMOSTAT. INOPERATIVE. THERMOSTAT, HIGH ENGINE OIL TEMPERATURE IN FLIGHT. REMOVED AND REPLACED THERMOSTAT. CURED PROBLEM. All 185: https://openairdocs.org/model/sikorsky-s-76/reports.md ## STCs that may be installed (OpenAirDocs) (3) 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 SR01122NY-D](https://openairdocs.org/stc/SR01122NY-D): Installation of an Avionics Innovations Digital Media Player Model DMP-100. Avionics Innovations - [STC SR00091LA](https://openairdocs.org/stc/SR00091LA): Installation of an RG-380/40B battery. Concorde Battery Corporation - [STC SR01348NY](https://openairdocs.org/stc/SR01348NY) (historical): Installation of boarding steps IAW Key Tech Engineering Services Installation Drawing List IDL00203, Rev B, dated 1/16/01. Keystone Helicopter Corp --- 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.