Sikorsky S-76

Service difficulty reports · 185

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Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = 'S76'
  ORDER BY difficulty_date DESC"

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.

SDR HEEA0010169Gyro · precessesSTANDBY ATTITUDE GYRO PRECESSES.Jun 19, 1997 · N5426U · Skrsky S76 · Attitude Gyro and Indicating SystemSDR 97ZZZX3451Blade · defectiveTAIL ROTOR BLADE ASSY WAS REPAIRED BY SIKORSKY JUST 422.4 HOURS AGO. PAINT AND EROSION STRIP NEEDS TO BE REWORKED.Jun 18, 1997 · N5402T · Skrsky S76 · Tail Rotor BladesSDR 97ZZZX2936Drive Belt · failedBELT SPLIT CAUSING LOSS OF TENSION AND ALLOWING BELT TO JUMP OFF PULLEY DRIVE AND WEDGING BETWEEN MOTOR AND PULLEY; THUS, CAUSING RUBBER SMELL AND SMOKE IN CABIN. BELT WAS LAST INSPECTED FOR CONDITION 33.2 HRS AGO. DATE OF LAST REPLACEMENT 8-11-92. ITEM IS Jun 9, 1997 · N176SH · Skrsky S76 · Cabin Cooling SystemSDR HAIHEEA9835Altimeter · defectiveINDICATOR WOULD DROP OFF LINE WHEN #1 FM RADIO WOULD BE KEYED.May 13, 1997 · N5426U · Skrsky S76 · Ground Proximity SystemSDR 97ZZZX2855Hinge · brokeDOOR HINGE BROKE WHILE MECHANIC WAS STANDING ON DOOR. REPLACED HINGE.May 8, 1997 · N5414X · Skrsky S76 · Passenger/Crew DoorsSDR 97ZZZX2755Hinge · corrodedCORROSION WHERE BUSHINGS GO THROUGH HINGE. REPLACED DOOR HINGE.May 8, 1997 · N5401G · Skrsky S76 · Passenger/Crew DoorsSDR HAIHEEA9809Tip Cap · crackedM/R BLADE TIP CAP IS CRACKED AT THE TIP END.May 7, 1997 · N5426U · Skrsky S76 · Main Rotor BladesSDR 97ZZZX2756Governor · malfunctionUNRESPONSIVE AT HIGH TORQUE RANGES. SHAFT RATCHETY AND STIFF. REPLACED GOVERNOR.May 7, 1997 · N5402T · Skrsky S76 · Turbine GovernorSDR 97ZZZX2859Switch · shortedFLOAT INFLATED PREMATURELY. FOUND SWITCH ROTATING IN CYCLIC, LOOSE INSTALLATION, WIRE FRAYED. NO SHIELDING OVER SOLDER JOINT, CAUSING SHORT. UNSOLDERED CONNECTION, INSTALLED SHIELDING OVER WIRES, RESOLDERED, AND INSTALLED SWITCH SECURELY TO PREVENT TURNING.May 1, 1997 · N5447C · Skrsky S76 · Emergency Flotation SectionSDR 97ZZZX2856Explosive Link · failedEXPLOSIVE LINK DID NOT ACTIVATE WHEN FLOATS WERE DEPLOYED. HARNESS TEST OK. REPLACED LINK.May 1, 1997 · N5447C · Skrsky S76 · Emergency Flotation SectionSDR HAIHEEA9472Fitting · crackedDOOR FITTING CRACKED. REPLACED WITH SERVICEABLE FITTING.Apr 23, 1997 · N5426U · Skrsky S76 · Landing Gear DoorsSDR 97ZZZX2314Blade · disbondedMAIN ROTOR BLADE S/N A086-00655 HAS AREA OF DISBOND ON UPPER SIDE SKIN JUST OUTBOARD OF THE ROOT END LAMINATE APPROXIMATELY 6 INCHES BY 6 INCHES AT A PREVIOUS REPAIR C/W BY SIKORSKEY 20.50 INCHES OUTBOARD FROM ROOT END APPROXIMATELY 2 INCHES FORWARD OF TRAILINApr 16, 1997 · N5402T · Skrsky S76 · Main Rotor BladesSDR 97ZZZX2313Blade · disbondedMAIN ROTOR BLADE S/N AC86-00479 HAS AREAS OF DISBOND ON LOWER SIDE SKIN JUST AFT OF TITANIUM LEADING EDGE. FIRST AREA IS 47.50 INCHES OUTBOARD OF ROOT END AND IS APPROXIMATELY 13 INCHES BY 1 INCH. SECOND AREA IS 201 INCHES OUTBOARD OF ROOT END AND APPROXIMATApr 16, 1997 · N5402T · Skrsky S76 · Main Rotor BladesSDR 97ZZZX1359Web · mismanufacturedUPON RECEIVING PART (NEW) FROM SIKORSKY, FOUND PYLON WEB MADE OF WRONG ALLOY OR NOT HEAT TREATED CORRECTLY. METAL TOO SOFT.Feb 20, 1997 · Skrsky S76 · Vertical StabilizerSDR 97ZZZX1286Blade Rib · dedbondedDISCOVERED DURING 500 HOUR INSPECTION THAT BLADE TIP RIB WAS DEBONDED.Jan 20, 1997 · N702AL · Skrsky S76 · Main Rotor BladesSDR 97ZZZX927Filter Cap · failedSHORTLY AFTER TAKEOFF FROM AN OFFSHORE PLATFORM IN THE GULF OF MEXICO, THE NR 1 ENGINE FIRE WARNING LIGHT ILLUMINATED AND THE NR 1 ENGINE OIL PRESSURE BEGAN TO FLUCTUATE. THE FLIGHT CREW SECURED THE NR 1 ENGINE AT WHICH TIME THE FIRE WARNING LIGHT EXTINGUISHEDJan 15, 1997 · N701AL · Skrsky S76 · Turbine Engine Reduction GearSDR 97ZZZX97Nozzle Shield · damagedTHE NR 2 ENGINE FIRST STAGE TURBINE NOZZLE SHIELD WAS FOUND TO HAVE AN .8750 INCH BY 1.75 INCH SECTION MISSING AT THE 6 O'CLOCK POSITION. THIS DEFECT WAS FOUND DURING A ROUTINE INSPECTION. IT WAS SEEN THROUGH THE FUEL NOZZLE MOUNTING HOLE. AFTER REMOVAL OFNov 7, 1996 · N5447C · Skrsky S76 · Turbine SectionSDR 97ZZZX257Blade · debondedDURING 500 HOUR INSPECTION FOUND UPPER SURFACE SKIN DEBONDED APPROXIMATELY 5 INCHES BY 6.50 INCHES AT RIGHT STA 53. SKIN CRACKED AT FORWARD EDGE OF TRIM TAB.Oct 18, 1996 · N705AL · Skrsky S76 · Main Rotor BladesSDR 97ZZZX311Screws · defectiveDURING 500 HR INSPECTION OF BLADES AS SCREWS WERE BEING INSTALLED TORQUE VALUE WAS REACHED WITH ONLY APPROXIMATELY ONE-THIRD THREAD ENGAGEMENT OF ENTIRE GRIP LENGTH. DISTORTED THREADS IN ONE AXIAL LOCATION ALONG GRIP LENGTH.Oct 14, 1996 · N707AL · Skrsky S76 · Main Rotor BladesSDR 97ZZZX310Screws · defectiveDURING 500 HR INSPECTION OF BLADES AS SCREWS WERE BEING INSTALLED TORQUE VALUE WAS REACHED WITH ONLY APPROXIMATELY ONE-THIRD THREAD ENGAGEMENT OF ENTIRE GRIP LENGTH. DISTORTED THREADS IN ONE AXIAL LOCATION ALONG GRIP LENGTH.Oct 14, 1996 · N707AL · Skrsky S76 · Main Rotor BladesSDR 97ZZZX309Screws · defectiveDURING 500 HR INSPECTION OF BLADES AS SCREWS WERE BEING INSTALLED TORQUE VALUE WAS REACHED WITH ONLY APPROXIMATELY ONE-THIRD THREAD ENGAGEMENT OF ENTIRE GRIP LENGTH. DISTORTED THREADS IN ONE AXIAL LOCATION ALONG GRIP LENGTH.Oct 14, 1996 · N707AL · Skrsky S76 · Main Rotor BladesSDR 97ZZZX308Screws · defectiveDURING 500 HR INSPECTION OF BLADES AS SCREWS WERE BEING INSTALLED TORQUE VALUE WAS REACHED WITH ONLY APPROXIMATELY ONE-THIRD THREAD ENGAGEMENT OF ENTIRE GRIP LENGTH. DISTORTED THREADS IN ONE AXIAL LOCATION ALONG GRIP LENGTH.Oct 14, 1996 · N707AL · Skrsky S76 · Main Rotor BladesSDR 96ZZZX6185Module · leakingHYDRAULIC MODULE ASSEMBLY PN 76650-09801-104 WAS REPORTED LEAKING AT CYLINDER OF MODULE. REMOVED CYLINDER PN 0711311-202 O-RING PN 0711311-237 AND INSTALLED ANOTHER SERVICEABLE CYLINDER AND O-RING. C/W LEAK CHECK OF MODULE ASSY. FOUND TO BE SERVICEABLE.Sep 25, 1996 · N5401G · Skrsky S76 · Hydraulic System, MainSDR 96ZZZX5539Nozzle · crackedUPON MAJOR REPAIR OF TURBINE, FOUND WEB OF OUTER BAND SEEMS TO HAVE BEEN MACHINED BELOW SPECS AND REPLATED. THIS CAUSED A WEAK SPOT IN FLANGE OF NOZZLE THAT CRACKED AND WENT INTO BOTH BLADE TIP PATHS. NOZZLE IS TO BE SCRAPPED. ASSURE THAT PARENT METAL IS MASep 9, 1996 · N702AL · Skrsky S76 · Turbine SectionSDR 96ZZZX4855Seat Back Assy · corrodedDURING ROUTINE MAINTENANCE, FOUND SEAT BACK FRAME CORRODED THROUGH.Jul 25, 1996 · N769AL · Skrsky S76 · Passenger Compartment EquipmentSDR 96ZZZX4849Scavenge Tube · bracket brokenUPON DISASSEMBLY OF GEARBOX, REMOVED OIL PUMP ASSY AND SCAVENGE TUBE. FOUND ALIGNMENT BRACKET ON SCAVENGE BROKEN.Jul 19, 1996 · N702AL · Skrsky S76 · Turbine Engine Oil SystemSDR HEEA966911Altimeter · errorCANNON PLUG WILL NOT LOCK ON ALTIMETER DUE TO PLUG ON ALT. BEING RECESSED TO FAR INSIDE. ALSO ENCODER IS OFF 100 FEET AT 10000 FEET. TIME SINCE REPAIR 0:00.Apr 2, 1996 · N5427S · Skrsky S76 · Altimeter, Barometric/EncoderSDR HEEA966899Shaft · brokenSHAFT BROKEN. BROKE BELOW SAFETY HOLE. REPLACED WITH SERVICEABLE UNIT.Apr 2, 1996 · N5426U · Skrsky S76 · Engine/Transmission CouplingSDR 96ZZZX2604Tail Rotor Assy · separationSEPARATION BETWEEN TIP WEIGHT SUPPORT BLOCK AND BLADE SKIN. RECOMMEND ALL IN SERVICE BLADES BE INSPECTED FOR DEBONDING OF TIP WEIGHT CHAMBER.Apr 1, 1996 · Skrsky S76 · Tail Rotor BladesSDR 96ZZZX2603Tail Rotor Assy · separationSEPARATION BETWEEN TIP WEIGHT SUPPORT BLOCK AND BLADE SKIN. RECOMMEND ALL IN SERVICE BLADES BE INSPECTED FOR DEBONDING OF TIP WEIGHT CHAMBER.Apr 1, 1996 · Skrsky S76 · Tail Rotor BladesSDR 96ZZZX3253Pitch Beam · looseTAIL ROTOR PITCH BEAM WAS FOUND LOOSE ON PITCH SHAFT, WITH .1250 INCH GAP BETWEEN WASHER-RETAINER AND NUT. INSPECTION REVEALED PITCH BEAM NUT WAS BOTTOMING OUT ON PITCH SHAFT, PREVENTING PITCH BEAM AND WASHER FROM SEATING. THE PITCH SHAFT HAD 80 HOURS SINCE Mar 28, 1996 · N5402T · Skrsky S76 · Tail Rotor HeadSDR 96ZZZX3252Pitch Shaft · looseTAIL ROTOR PITCH BEAM WAS FOUND LOOSE ON PITCH SHAFT WITH .1250 INCH GAP BETWEEN WASHER AND NUT. INSPECTION REVEALED PITCH BEAM NUT WAS BOTTOMING OUT ON PITCH SHAFT, PREVENTING PITCH BEAM AND WASHER-RETAINER FROM SEATING. THE PITCH SHAFT HAD 80 HOURS SINCE IMar 28, 1996 · N5402T · Skrsky S76 · Tail Rotor HeadSDR 96ZZZX3251Retain Washer · looseTAIL ROTOR PITCH BEAM WAS FOUND LOOSE ON PITCH SHAFT WITH .1250 INCH GAP BETWEEN WASHER-RETAINER AND NUT. INSPECTION REVEALED PITCH BEAM NUT WAS BOTTOMING OUT ON PITCH SHAFT, PREVENTING PITCH BEAM AND WASHER FROM SEATING. THE PITCH SHAFT HAD 80 HOURS SINCE IMar 28, 1996 · N5402T · Skrsky S76 · Tail Rotor HeadSDR 96ZZZX1824Scavenge Body · wornUPON DISASSEMBLY OF GEARBOX, REMOVED OIL PUMP ASSY. VISUALLY INSPECTED, SHOWED WEAR AT SCAVENGE BODY SURFACE, AND IN THE TUBE BONE. SCAVENGE TUBE WORN IN SCAVENGE BODY. SUSPECT CAUSE IS DUE TO IMPROPER FIT OR ALIGNMENT BRACKETS.Mar 2, 1996 · N701AL · Skrsky S76 · Turbine Engine Reduction GearSDR 96ZZZX2362Scavenge Body · wornUPON DISASSEMBLY OF GEARBOX, REMOVED OIL PUMP ASSY. VISUALLY INSPECTED, SHOWED WEAR AT SCAVENGE BODY AND SCAVENGE TUBE MATING SURFACE. SCAVENGE TUBE WORE INTO SCAVENGE BODY. SUSPECT CAUSE IS DUE TO IMPROPER FIT ON ALIGNMENT BRACKETS.Feb 7, 1996 · N769AL · Skrsky S76 · Turbine Engine Oil SystemSDR 96ZZZX1031Housing · damagedREWORK PERFORMED TO SERVO MOUNT PADS BEYOND LIMITS OF OVERHAUL MANUAL SA4047-76-7-8. REWORK AREAS MEASURE IN LENGTH FROM .063 INCH LONG TO 2.957 INCH LONG, WIDTHS MEASURE FROM .063 INCH TO .352 INCH. DEPTHS MEASURE FROM .015 INCH TO .028 INCH AND REWORKED ARJan 16, 1996 · Skrsky S76 · Main Rotor GearboxSDR 96ZZZX746Fuel Control · water contamDURING FLIGHT CHECK/HOVER, COMPRESSOR STALLED. REMOVED FROM ENGINE, INSPECTED PX-AIR CIRCUIT ON FUEL CONTROL, FOUND EXCESSIVE AMOUNT OF WATER.Jan 4, 1996 · N701AL · Skrsky S76 · Fuel Control/Turbine EnginesSDR 96ZZZX329Oil Press Trans · malfunctionedWHILE INFLIGHT, THE PILOT OBSERVED THAT THE NO 1 ENGINE OIL PRESSURE DECREASED INTO THE YELLOW PRECAUTIONARY RANGE. THE NO 1 ENGINE WAS SHUT DOWN AS A PRECAUTION TO PREVENT POSSIBLE ENGINE DAMAGE. AIRCRAFT LANDED WITH NO FURTHER INCIDENT. NO DAMAGE OR INJURNov 29, 1995 · N83T · Skrsky S76 · Engine Oil PressureSDR 95ZZZX6889Tip Cap · crackedDURING 500-HOUR M/R INSPECTION, CRACK FOUND AT HOLE ON UPPER INNER CRESCENT DOUBLER. COMPONENT NR 7615009100051.Nov 9, 1995 · N703AL · Skrsky S76 · Main Rotor BladesSDR 95ZZZX6888Tip Cap · debondedFOUND AT 500-HOUR INSPECTION, INNER CRESCENT DOUBLER DEBONDED UNDER C-CHANNEL. COMPONENT MODEL NR 7615009000049.Nov 9, 1995 · N703AL · Skrsky S76 · Main Rotor BladesSDR 95ZZZX4421P.T.O. Gear · making metalDISASSEMBLED GEARBOX TO INSPECT GEARBOX FOR MAKING METAL. FOUND CAUSE TO BE THE P.T.O. GEAR, IMPROPER MACHINING ON THE GEAR TEETH. DISCOVERED THE TORQUE METER GEAR TO BE MAKING METAL DUE TO THE IMPROPER MACHINING ON THE P.T.O. GEAR TEETH.Jul 10, 1995 · N769AL · Skrsky S76 · Turbine Engine Reduction GearSDR 95ZZZX3374Line · leakingIN CRUISE FLIGHT APPROXIMATELY 25 MINUTES AFTER TAKEOFF, NR 1 SERVO SYSTEM CAUTION LIGHT ILLUMINATED. RESET SERVO JAM CIRCUIT BREAKER AND LIGHT EXTINGUISHED. TWO MINUTES LATER, NR 1 SERVO SYSTEM LIGHT ILLUMINATED AGAIN. RESET SERVO JAM CIRCUIT BREAKER AND LJun 22, 1995 · N702AL · Skrsky S76 · Hydraulic System, MainSDR 95ZZZX3978Fire Light · malfunctionNR 1 ENGINE FIRE LIGHT AND HORN CAME ON IN-FLGIHT. COULD NOT CONFIRM FIRE. AIRCRAFT LANDED WTHOUT FURTHER INCIDENT. NR 1 ENGINE FIRE DETECTION SYSTEM WAS TROUBLESHOT AND PROBLEM COULD NOT BE DUPLICATED.Jun 19, 1995 · N5446E · Skrsky S76 · Fire DetectionSDR 95ZZZX3746Sleeve · crackedSERVO SLEEVE MAGNETIC PARTICLE INSPECTION REVEALED STRESS CRACKS WHICH RADIATE OUT FROM THE 1.050 INCH DIAMETER TO THE 1.235 INCH DIAMETER WITH EDGEBREAK. FOUR SUCH DEFECTIVE PARTS FOUND ON FOUR SEPARATE ASSEMBLIES.Jun 14, 1995 · Skrsky S76 · Tail Rotor Control SystemSDR 95ZZZX6101Seal · failedON 6-10-95, NR 2 ENGINE OIL PRESSURE FLUCTUATED IN-FLIGHT. SECURED ENGINE, MADE SINGLE ENGINE LANDING. FOUND NR 2 ENGINE STARTER/GENERATOR SEAL HAD 'POPPED' OUT. SEAL HAD BEEN INSTALLED 30 MINUTES PRIOR. SUSPECT DAMAGED DURING INSTALLATION. 250-C30 IPC, CJun 10, 1995 · N5128 · Skrsky S76 · Starter-GeneratorSDR 95ZZZX3361Fire Warning · malfunctionIN LEVEL FLIGHT, NR 1 FIRE LIGHT ILLUMINATED AND AUDIO SOUNDED. WAS UNABLE TO EXTINGUISH LIGHT OR TURN HORN OFF. SECURED NR 1 ENGINE. APPROXIMATELY 3 MINUTES LATER, LIGHT WENT OUT AND HORN WENT OFF. UPON FINAL APPROACH, RESTARTED NR 1 ENGINE, FIRE LIGHT DIJun 5, 1995 · N5446E · Skrsky S76 · Fire DetectionSDR 95ZZZX2803Outer Housing · corrodedDISASSEMBLY FOR OVERHAUL FOUND EXCESSIVE CORROSION ON MOUNT LUGS BEYOND MAXIMUM ALLOWABLE CLEAN-UP LIMITS.May 11, 1995 · N701AL · Skrsky S76 · Tail Rotor Drive ShaftSDR 95ZZZX2802Tube Assy · debondedDISASSEMBLY FOR OVERHAUL FOUND T/R DRIVE TUBE DEBONDED BEYOND MANUFACTURER'S MAXIMUM ALLOWABLE LIMITS.May 11, 1995 · N701AL · Skrsky S76 · Tail Rotor Drive ShaftSDR 95ZZZX2812Viscous Damper · debondedPOST-FLIGHT INSPECTION FOUND DAMPER TUBE DEBONDED BEYOND LIMITS.May 10, 1995 · N703AL · Skrsky S76 · Tail Rotor Drive ShaftSDR 95ZZZX2814Bushing · wornDURING SHOP TEAR DOWN AND INSPECTION FOR REPAIR DUE TO WEAK OPERATION, FOUND BUSHING ID WORN PAST LIMITS. SUSPECT CAUSE - CONTAMINATED OIL.May 9, 1995 · N705AL · Skrsky S76 · Main Rotor Head
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