# N376AL: Sikorsky S-76A, registration cancelled 2024-07-25 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: July 25, 2024 - Status when cancelled: Valid registration - Airframe: [Sikorsky S-76A](https://openairdocs.org/model/sikorsky-s-76a) (registry code 8143006) - Data sheets: [TCDS H1NE](https://openairdocs.org/tcds/H1NE) (OpenAirDocs) - Serial number: 760002 - Type of aircraft: Rotorcraft - Last registry action: December 28, 2004 - Mode S code: A44A20 - Owner when cancelled: [Sikorsky Aircraft Corp](https://openairdocs.org/faa-owner/SIKORSKY%20AIRCRAFT%20CORP) - Location: [Stratford, CT](https://openairdocs.org/faa-place/CT/Stratford) - Owner type: Corporation - Owner's area on the map: 41.1630° N, 73.1281° W: Placed by OpenAirDocs at the center of ZIP code 06615, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based - The mark today: https://openairdocs.org/aircraft/N376AL - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=376AL - Page: https://openairdocs.org/deregistered/N376AL-2024-07-25 From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe. ADs and bulletins for the Sikorsky S-76A: https://openairdocs.org/model/sikorsky-s-76a.md ## Service difficulty reports (32) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR 2006FA0000191](https://openairdocs.org/sdr/2006FA0000191), Feb 16, 2006: O-RING. CORRODED. FOUND O-RING AREA PITTED UPON REMOVAL. SEVERAL TUBES IN FUEL SUPPLY SYS ALSO FOUND PITTED IN O-RING AND B-NUT AREA. NO LEAKS FOUND. FOUND DURING ROUTINE MAINTEN - [SDR 2006FA0000190](https://openairdocs.org/sdr/2006FA0000190), Feb 16, 2006: O-RING. CORRODED. FOUND O-RING AREA PITTED UPON REMOVAL. SEVERAL TUBES IN FUEL SUPPLY SYS ALSO FOUND PITTED IN O-RING AND B-NUT AREA. NO LEAKS FOUND. FOUND DURING ROUTINE MAINTEN - [SDR 2006FA0000189](https://openairdocs.org/sdr/2006FA0000189), Feb 16, 2006: O-RING. CORRODED. FOUND O-RING AREA PITTED UPON REMOVAL. SEVERAL TUBES IN FUEL SUPLY SYS ALSO FOUND PITTED IN O-RING AND B-NUT AREA. NO LEAKS FOUND. FOUND DURING ROUTINE MAINTENA - [SDR 2006FA0000188](https://openairdocs.org/sdr/2006FA0000188), Feb 16, 2006: O-RING. CORRODED. FOUND O-RING AREA PITTED UPON REMOVAL. SEVERAL TUBES IN FUEL SUPPLY SYS ALSO FOUND PITTED IN O-RING AND B-NUT AREA. NO LEAKS FOUND. FOUND DURING ROUTINE MAINTEN - [SDR ALG2003F00078](https://openairdocs.org/sdr/ALG2003F00078), Jul 1, 2003: CONNECTOR. CONTAMINATED. DURING THE PRESTART CHECKS. THE FIRE T HANDLE FOR THE NR 1 ENGINE WOULD NOT TEST. WATER FOUND IN SYSTEM CONNECTORS, CONNECTORS DRIED AND REINSTALLED, SYSTEM CHE - [SDR ALG2003F00041](https://openairdocs.org/sdr/ALG2003F00041), Sep 26, 2002: CHIP DETECTOR. ACTIVATED. DURING FLIGHT, NR 2 ENGINE CHIP LIGHT ILLUMINATED AND WOULD NOT RESET, BEEPED NR 2 ENGINE ALL THE WAY BACK AND FLEW APPROXIMATELY 20 MINUTES SINGLE ENGINE AND P - [SDR ALG2001F00034](https://openairdocs.org/sdr/ALG2001F00034), Nov 3, 2001: CONNECTOR. LOOSE. PRESTART CHECK. NR 1 ENGINE FIRE DETECTION SYSTEM WILL NOT TEST. CIRCUIT BREAKER FOUND POPPED, LOOSE CONNECTION IN T HANDLE FOR BULBS. - [SDR ALG2001F00006](https://openairdocs.org/sdr/ALG2001F00006), May 7, 2001: PINION GEAR. SPALLED. UPON DISASSEMBLY OF GEARBOX FOR METAL. FOUND SPALLING AND GALLING ON GEAR TEETH CAUSING METAL CONTAMINATION AND DAMAGE TO T/M GEAR PN E6893673 S/N PG4068. ASSUR - [SDR 20010328CW011](https://openairdocs.org/sdr/20010328CW011), Feb 9, 2001: ENGINE. FAILED. IN CRUSE FLIGHT A LOUD NOISE WAS HEARD AND SHARP YAW WAS EXPERIENCED. NR 2 N1 WAS AT 10 PERCENT, T5 WAS INCREASING THROUGH 800 DEGREES C AND NR 2 FIRE LIGHT ILL - [SDR 20000718SH014](https://openairdocs.org/sdr/20000718SH014), May 8, 2000: CONNECTOR. DIRTY. ON TAKEOFF, LANDING GEAR WOULD NOT RETRACT. FOUND ''UP'' PROXIMITY SWITCH CANNON PLUG ON NOSE GEAR ACTUATOR DIRTY. CLEANED AND REINSTALLED. (X) - [SDR 99ZZZX413](https://openairdocs.org/sdr/99ZZZX413), Jan 12, 1999: SPOOL BUSHING. FAILED. GOVERNOR REMOVED FOR TORQUE FLUCTUATION. UPON INSPECTION IN SHOP, FOUND BALL BEARING THAT FELL OUT OF GOVERNOR COVER WHILE STILL ASSEMBLED. SPLIT GOVERNOR BODY - [SDR 98ZZZX3095](https://openairdocs.org/sdr/98ZZZX3095), Jul 27, 1998: PYLON. CORROSION. DURING MAJOR AIRFRAME INSPECTION, FOUND CORROSION ON PYLON SKIN AND STRAPS P/N 78286-76070-20086-101, -102. PARTS WERE CONSIDERED UNSERVICEABLE AND REPLACED. EX - [SDR 98ZZZX1252](https://openairdocs.org/sdr/98ZZZX1252), Feb 11, 1998: BEARING CUP. FAILED. ON GROUND RUN UP, HAD BEARING FAILURE IN INPUT QUILL ASSEMBLY. COMPONENT P/N 7635705000041. - [SDR 98ZZZX1251](https://openairdocs.org/sdr/98ZZZX1251), Feb 11, 1998: BEARING CONE. FAILED. ON GROUND RUN UP, HAD BEARING FAILURE IN INPUT QUILL ASSEMBLY. COMPONENT P/N 7635705000041. - [SDR 98ZZZX255](https://openairdocs.org/sdr/98ZZZX255), Dec 2, 1997: BLADE. DEBONDED. DISCOVERED DURING 500-HOUR INSPECTION, M/R BLADE TIP RIB STRAP AND DOUBLERS DEBONDED. - [SDR 96ZZZX5533](https://openairdocs.org/sdr/96ZZZX5533), Aug 15, 1996: CAP ANGLE. CORRODED. MAJOR INSPECTION, FOUND VERT PYLON CAP ANGLE CORRODED BEYOND LIMITS, INNER GRANULAR CORROSION, IMPROPER CORROSION PREVENTION, NORMAL WEAR AND TEAR. - [SDR 96ZZZX5532](https://openairdocs.org/sdr/96ZZZX5532), Aug 15, 1996: WEB. CRACKED. MAJOR INSPECTION, FOUND VERT PYLON WEB CORRODED AND CRACKED, NORMAL WEAR AND TEAR - [SDR 96ZZZX5531](https://openairdocs.org/sdr/96ZZZX5531), Aug 15, 1996: WEB DOUBLER. CRACKED. MAJOR INSPECTION, FOUND VERT PYLON WEB DOUBLER CORRODED AND CRACKED, NORMAL WEAR AND TEAR. - [SDR 96ZZZX5530](https://openairdocs.org/sdr/96ZZZX5530), Aug 15, 1996: BULKHEAD. CORRODED. MAJOR INSPECTION, FOUND VERT PYLON BULKHEAD CORRODED BEYOND LIMITS, INNER GRANULAR CORROSION, NORMAL WEAR AND TEAR. - [SDR 96ZZZX5529](https://openairdocs.org/sdr/96ZZZX5529), Aug 15, 1996: DOUBLER. CRACKED. MAJOR INSPECTION, FOUND VERT PYLON DOUBLER CRACKED, NORMAL WEAR AND TEAR. - [SDR 96ZZZX5528](https://openairdocs.org/sdr/96ZZZX5528), Aug 15, 1996: BULKHEAD. CRACKED. MAJOR INSPECTION, FOUND VERT PYLON BULKHEAD CRACKED, NORMAL WEAR AND TEAR. - [SDR 96ZZZX5527](https://openairdocs.org/sdr/96ZZZX5527), Aug 15, 1996: RIB. CRACKED. MAJOR INSPECTION, FOUND VERT PYLON RIB CRACKED, NORMAL WEAR AND TEAR. - [SDR 96ZZZX5526](https://openairdocs.org/sdr/96ZZZX5526), Aug 15, 1996: ANGLE. CORRODED. MAJOR INSPECTION, FOUND VERT PYLON LT ANGLE CORRODED BEYOND LIMITS, INNER GRANULAR CORROSION, NORMAL WEAR AND TEAR. - [SDR 96ZZZX5525](https://openairdocs.org/sdr/96ZZZX5525), Aug 15, 1996: ANGLE. CORRODED. MAJOR IN SPECTION, FOUND VERT PYLON ANGLE CORRODED BEYOND LIMITS, IMPROPER CORROSION PREVENTION, INNER GRANULAR CORROSION, NORMAL WEAR AND TEAR. - [SDR 96ZZZX5524](https://openairdocs.org/sdr/96ZZZX5524), Aug 15, 1996: FITTING. DEFECTIVE. MAJOR INSPECTION, VERT PYLON FITTING BOLT HOLE DIAMETER BEYOND LIMITS. NORMAL WEAR AND TEAR. - [SDR 96ZZZX5523](https://openairdocs.org/sdr/96ZZZX5523), Aug 15, 1996: SHEAR DECK. CRACKED. MAJOR INSPECTION, FOUND VERTICAL PYLON SHEAR DECK CRACKED, NORMAL WEAR AND TEAR. - [SDR 96ZZZX5522](https://openairdocs.org/sdr/96ZZZX5522), Aug 15, 1996: RIB. CRACKED. MAJOR INSPECTION, VERTICAL PYLON RIB CORRODED INNER GRANULAR, CRACKED, NORMAL WEAR AND TEAR. - [SDR 96ZZZX3484](https://openairdocs.org/sdr/96ZZZX3484), Jun 10, 1996: BLADE SPAR. CRACKED. DISCOVERED DURING 500-HOUR INSPECTION, BLADE SPAR CRACKED AT ROOT END BUSHING HOLE. - [SDR 96ZZZX2213](https://openairdocs.org/sdr/96ZZZX2213), Mar 28, 1996: TUBE ASSY. CHAFED. DURING GROUND RUN, NR 1 SERVO CAUTION LIGHT ILLUMINATED. AIRCRAFT WAS SHUT DOWN. DURING TROUBLESHOOTING, HYDRAULIC LINE WAS FOUND CHAFING ON THE FIREWALL. REPLA - [SDR 96ZZZX1172](https://openairdocs.org/sdr/96ZZZX1172), Jan 12, 1996: PISTON. BOLT BROKEN. DURING SHOP INSPECTION (3,000-HOUR) AND REPAIR AND AFTER UPGRADE TO DASH 104 ASSEMBLY DURING BENCH TESTING, FOUND BOOT STRAP PISTON RESTRAINING BOLT (PN MS24678 - [SDR 95ZZZX2789](https://openairdocs.org/sdr/95ZZZX2789), May 10, 1995: HOUSING. CORRODED. DISASSEMBLY FOR REPAIR FOUND EXCESSIVE CORROSION ON MOUNT LUGS BEYOND MANUFACTURER'S CLEAN-UP LIMITS. - [SDR 95ZZZX1854](https://openairdocs.org/sdr/95ZZZX1854), Mar 15, 1995: TRANSMITTER. FAILED. AFTER LANDING, NOTICED THE TRANSMISSION OIL PRESSURE HAD DROPPED OUT OF THE GREEN AND THEN DROPPED TO ZERO PSI. REPLACED TRANSMISSION OIL PRESSURE TRANSMITTER. ## NTSB investigations (1) 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 FTW01LA081](https://openairdocs.org/ntsb/FTW01LA081), Mar 20, 2001: Sikorsky SK-76A (N376AL), Ec 270, no damage, 1 fatal. Probable cause: the passenger's inadvertent encounter with the rotating main rotor blades. ## FAA accident and incident reports (3) 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. - [Accident 20010320004579A](https://openairdocs.org/incident/20010320004579A), Mar 20, 2001: Skrsky S76A (N376AL), No damage, 1 fatal. (-23) While deplaing passengers at an offshore heliport, a waiting passenger entered the heliport area unescorted. The passenger was struck in the head by the… - [Incident 19891214062539I](https://openairdocs.org/incident/19891214062539I), Dec 14, 1989: Skrsky S76A (N376AL), Gulf Of Mexico, LA. NR1 engine oil temperature increase. Landed safely. Oil cooler blower had sheared drive shaft. - [Incident 19820417023539I](https://openairdocs.org/incident/19820417023539I), Apr 17, 1982: Skrsky S76 (N376AL), Intracoastal Ci, LA. After avoiding several thunderstorms and holding for offshore heliport to clear. Pilot ran out of fuel. --- 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.