Pratt & Whitney JT9D-7F

Service difficulty reports · 129

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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 engine_model_key = 'JT9D7F'
  ORDER BY difficulty_date DESC"

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SDR 9716316730Gearbox · oil leakDURING TAKEOFF ROLL WHILE SETTING TAKEOFF EPR, THE NR 2 ENGINE LOW OIL PRESSURE WARNING LIGHT ILLUMINATED. THE FLIGHT ENGINEER'S NR 2 OIL PRESSURE GAUGE INDICATED ZERO AND QUANTITY WAS ZERO. THE ENGINE WAS SHUT DOWN IMMEDIATELY AND THE TAKEOFF WAS ABORTED JUAug 28, 1997 · N630US · Boeing 7472J9F · Turbine Engine Oil SystemSDR EIAA970192Gearbox · failedPANC - DURING CRUISE AT FL330, NR 2 ENG OIL QTY BEGAN DROPPING, THEN FWD ANNUNCIATOR LOW OIL PRESSURE LIGHT FLICKERED, ENGINE WAS SHUT DOWN, OIL PRESSURE WAS 15 PSI, WITH N2 25 PERCENT, N1 29.5 PERCENT, OIL QTY READING ONE GALLON AFTER SHUTDOWN. ENGINE PARAMEAug 24, 1997 · N471EV · Boeing 747273C · Turbine Engine Accessory DriveSDR EIAA970189Compressor · stalledRJCC - CLIMB-OUT AT 2,500 FT HEARD LOUD BANG AND HAD A FIRE WARNING NR 4 ENGINE. SHUT DOWN NR 4 ENGINE, FIRED LEFT BOTTLE. RETURNED TO RJCC, BLOCKED IN NO OTHER PROBLEMS THE TWO SIDE COWLS WHERE MISSING UPON GROUND INSPECTION. (M)Aug 14, 1997 · N479EV · Boeing 747132 · Turbine Engine Compressor SectionSDR 9714756717Control Valve · failedDURING TAKEOFF ROLL, THE NR 1 ENGINE EPR LAGGED THE OTHER ENGINES AND THE EGT ROSE TO 925C. TAKEOFF EPR TARGET WAS 1.48 AND THE NR 1 ENGINE ONLY REACHED 1.40. TAKEOFF WAS ABORTED. MAINTENANCE INSPECTED THE ENGINE AND REPLACED THE LINEAR DIRECTIONAL CONTROL Jul 31, 1997 · N617US · Boeing 747251F · Compressor Bleed ControlSDR 9714556718Oil Filter · dirtyWHILE IN CRUISE, THE NR 3 ENGINE OIL FILTER BYPASS LIGHT BEGAN TO FLICKER, AFTER 2-3 MINUTES THE LIGHT WAS STEADY AND REMAINED STEADY WHEN POWER WAS REDUCED TO IDLE. THE ENGINE WAS SHUT DOWN AND LANDED AT DESTINATION WITHOUT INCIDENT. MAINTENANCE FOUND THE MAJul 28, 1997 · N618US · Boeing 747251B · Turbine Engine Oil SystemSDR EIAA970185Engine · flamed outLFPG - AT CRUISE FL340 LOUD NOISE AND NR 1 ENGINE FLAMED OUT. DESCENDED TO FL290 RESTARTED NR 1 ENGINE ALL INDICATIONS NORMAL. CHECKED PS3, PS4, PT2 LINES AND CONNECTIONS. RETIGHTENED CONNECTIONS TO EVC PT2 PROBE ADJUSTED EVC TRIM SCREW .25 TURN CLOCKWISE. Jul 24, 1997 · N481EV · Boeing 747132 · Engine (Turbine/Turboprop)SDR EIAA970179Seal · tornLAX - LOG PAGE E04600 - TEN MINUTES AFTER TAKEOFF, OIL QUANTITY INDICATED ZERO. PRESSURE INDICATED 35 TO 40 PSI. NR 4 ENGINE WAS SHUT DOWN. AIRCRAFT RETURNED TO LAX. OUTBOARD HYDRAULIC PUMP DRIVE PAD SEAL LEAKING. REPLACED SEAL. (X)Jul 1, 1997 · N479EV · Boeing 747132 · Turbine Engine Accessory DriveSDR P5CA9701187Fuel Control · failedDURING CRUISE FLIGHT, NR 2 ENGINE STALLED. ALL INDICATIONS SHOWED THRUST LOSS. ATTEMPTED RESTART, ENGINE DID RELIGHT BUT DID NOT STABILIZE. ACCOMPLISHED ENGINE SHUT DOWN PROCEDURE. POSITIVE OIL PRESSURE AT ALL TIMES. FCU CYCLED 1 MIN EACH 30 MIN. REMOVEDJun 25, 1997 · N855FT · Boeing 747124 · Fuel Control/Turbine EnginesSDR EIAA970178Engine · failedVHHH - LOG PAGE: 04589 - AT CRUISE, FL 290, EXPERIENCED A COMPRESSOR STALL ON THE NR 4 ENGINE. THE ENGINE EGT ROSE TO ABOUT 1000 CELSIUS ACCOMPANIED SIMULTANEOUSLY BY DECREASING N1 AND N2. ENGINE FIRE CHECKLIST WAS ACCOMPLISHED. THE EGT PEAKED AND REMAINED Jun 22, 1997 · N479EV · Boeing 747132 · Engine (Turbine/Turboprop)SDR 9711836614Engine · failedIN CRUISE, THE NR 3 ENGINE LOW OIL PRESSURE LIGHT BEGAN FLICKERING. NR 3 OIL PRESSURE DECREASED FROM 35 PSI TO 20 PSI. ENGINE POWER WAS REDUCED TO IDLE AND A SIGNIFICANT AIRFRAME VIBRATION DEVELOPED. NR 3 ENGINE WAS SHUT DOWN USING COM PROCEDURE. DUMPED 90Jun 16, 1997 · N614US · Boeing 747251B · Engine (Turbine/Turboprop)SDR 9711146614Engine · malfunctionedWHILE IN CRUISE, THE NR 1 ENGINE FUEL FLOW INCREASED TO 15,000 LBS PER HOUR. EGT WENT INTO THE RED FOR 15 SECONDS. POWER LEVER WAS RETARDED TO IDLE WITH NO AFFECT FOR 5 SECONDS. FUEL HEAT WAS APPLIED AND THE ENGINE WAS SHUT DOWN. MAINTENANCE PERFORMED AN OJun 8, 1997 · N614US · Boeing 747251B · Engine (Turbine/Turboprop)SDR 9710206729Tr Unit · malfunctionedDURING LANDING, THE NR 3 ENGINE DID NOT COME OUT OF REVERSE THRUST. OIL PRESSURE DECREASED AND EGT ROSE TO 860 CELSIUS. ENGINE WAS SHUTDOWN. MAINTENANCE RAN ENGINE AND OPERATED THE THRUST REVERSER WITH ALL INDICATIONS NORMAL.May 25, 1997 · N629US · Boeing 747251F · Engine Thrust ReverserSDR 9710136614Engine · flamed outWHILE CLMBING THROUGH FL370, NR 4 ENGINE FLAMED OUT. ENGINE WAS SECURED AND RELIT PER COM PROCEDURE. EGT REACHED 990C FOR APPROXIMATELY 80 SECONDS NEAR THUNDERSTORM ACTIVITY WITH LIGHTNING AND STATIC CHARGE. MAINTENANCE INSPECTED ENGINE PER MM 72-00-00, PG May 22, 1997 · N614US · Boeing 747251B · Engine (Turbine/Turboprop)SDR EIAA970092Seal · wornVHHH - DURING CRUISE FLIGHT, NR 4 ENGINE HAD LOW OIL QTY REQUIRING PRECAUTIONARY ENGINE SHUTDOWN. OIL PRESSURE FLUCTUATED INTO CAUTION RANGE. ENGINE NR 4 WAS SHUTDOWN IN FLIGHT. INSPECTED NR 4 ENGINE FOR OIL LEAKS PER MM. FOUND HYDRAULIC PUMP DRIVE SEAL LEMay 13, 1997 · N470EV · Boeing 747273C · Turbine Engine Accessory DriveSDR EIAA970087Gearbox · failedLAX - DURING CRUISE FLIGHT AT FL310, LOW OIL PRESSURE LGHT CAME ON. OIL PRESSURE GAUGE READ 'A' PSI AND N2 INDICATED ZERO PERCENT. ENGINE NR 2 WAS SHUTDOWN INFLIGHT. SUSPECT GEAR BOX FAILURE. AIRCRAFT BEING FERRIED TO JFK FOR ACCESSORY GEAR BOX REPLACEMENTApr 18, 1997 · N470EV · Boeing 747273C · Turbine Engine Accessory DriveSDR 9706046729Bleed Contl Vlv · malfunctionedDURING TOP OF DESCENT, THE NR 2 ENGINE EGT STARTED TO CLIMB. NR 2 ENGINE WAS SHUT DOWN AT 36,000 FEET. ENGINE RESTARTED AT 25,000 FEET. ENGINE OPERATED NORMALLY FOR REMAINDER OF FLIGHT. MAINTENANCE REMOVED AND REPLACED BLEED CONVERTER VALVE, PS4 RESTRICTORMar 23, 1997 · N629US · Boeing 747251F · Compressor Bleed ValveSDR EIAA970083Fan Blade · bentJFK - ON POST FLIGHT INSPECTION, FOUND A BIRD IN NR 1 ENGINE. REPLACED NR 1 ENGINE FAN BLADE SET, AND NR 3 CASCADE DUE TO BIRD DAMAGE. (M)Mar 4, 1997 · N481EV · Boeing 747132 · Turbine Engine Compressor SectionSDR 9703616612Engine · failedDURING CRUISE, THE NR 1 ENGINE EXPERIENCED AN ENGINE FLAMEOUT DUE TO OVERTEMP. AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT. REPLACED THE NR 1 ENGINE. OPERATIONAL CHECK GOOD.Feb 15, 1997 · N612US · Boeing 747251B · Engine (Turbine/Turboprop)SDR 9702476612Compressor · stalledDURING TOP OF DESCENT AT 37,000 FEET, NR 1 ENGINE EXPERIENCED A COMPRESSOR STALL FOLLOWED BY A RISE IN EGT. NR 1 ENGINE WAS SHUT DOWN AND SUCCESSFULLY RESTARTED AT 20,000 FEET. MAINTENANCE PERFORMED TYPE 'A' STALL INSPECTION CHECK PER FIM 71-01-00. REMOVED Feb 4, 1997 · N612US · Boeing 747251B · Turbine Engine Compressor SectionSDR CA970129007Compressor · damaged(CAN) ON CLIMBOUT #1 ENGINE FAILED. POST FLIGHT INSPECTION FOUND THE COMPRESSOR DAMAGED AND THE TAIL CONE MISSING. FINAL REPORT TO FOLLOW.Jan 17, 1997 · Boeing 747238B · Turbine Engine Compressor SectionSDR CA970325019Guide Vane · failed shroud(CAN) ON CLIMB OUT #1 ENGINE FAILED. MAINTENANCE FOUND EXHAUST CONE MISSING AND LOW PRESSURE TURBINE DAMAGE. #1 ENGINE REPLACED DUE TO MASSIVE LOW PRESSURE TURBINE FAILURE AS A RESULT OF A STAGE 4 NOZZLE GUIDE VANE INNER SHROUD FAILURE.Jan 17, 1997 · Boeing 747238B · Turbine SectionSDR 9626546718Engine · bird strikeDURING TAKEOFF, THE NR 1 ENGINE N1 WENT TO ZERO WITH VIBRATION NOTED. THE ENGINE WAS SHUT DOWN, DUMPED 55.000 LBS OF FUEL AND THE AIRCRAFT RETURNED TO SFO WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTION REVEALED A BIRD STRIKE. PERFORMED ENGINE RUN-UP AT TADec 11, 1996 · N618US · Boeing 747251F · Engine (Turbine/Turboprop)SDR 9626096729Ps4 Line · rupturedDURING CRUISE, THE NR 2 ENGINE FAILED TO OBTAIN NORMAL POWER. AIRCRAFT RETURNED TO ANC AND LANDED WITHOUT INCIDENT. REPLACED PS4 LINE BETWEEN ENGINE CASE AND COMPRESSOR BLEED CONTROL, OPERATIONAL CHECK OK.Dec 7, 1996 · N251F · Boeing 747251F · Fuel Controlling SystemSDR 9624896716Egt Wire · failedDURING TAKEOFF ROLLOUT, THE NR 1 ENGINE EGT GAUGE INDICATED APPROXIMATELY 400 DEGREES WHILE OTHERS INDICATED 750 DEGREES. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND A PREVIOUSLY REPAIRED WIRE FORNov 16, 1996 · N616US · Boeing 747251F · Engine EGT/TIT Indicating SystemSDR EIAA9684Angle Gearbox · leakingLOG PAGE: F35815. JFK - 3 HOURS OUT OF EINN, NR 3 ENGINE OIL QUANTITY STARTED TO DECREASE FROM ONE-HALF TO 'E'. NR 3 OIL PRESSURE STARTED DROPPING INTO CAUTION RANGE, THE LOW OIL PRESSURE LIGHT ILLUMINATED. ENGINE WAS SHUT DOWN. N1 IND. 30.4 PERCENT AND NNov 12, 1996 · N485EV · Boeing 747212B · Turbine Engine Accessory DriveSDR EIAA96047Scavenge Line · leakingDURING CLIMB THROUGH FLIGHT LEVEL 100, NR 3 ENGINE QTY SHOWED ZERO, LOW OIL PRESSURE LIGHT CAME ON. SHUTDOWN ENGINE IN FLIGHT. WINDMILLING OIL PRESSURE WAS 5 PSI, WINDMILLING TIME WAS ONE HOUR, MACH .52/IAS 300 KNOTS. FOUND SCAVENGE LINE FROM NR 1 AND NR 2 Oct 18, 1996 · N485EV · Boeing 747212B · Turbine Engine Oil SystemSDR 9622266612Engine · flamed outDURING CRUISE, THE NR 3 ENGINE EXPERIENCED FLAME-OUT. FLAME-OUT OCCURRED WHILE FUEL MANAGEMENT PROCEDURES WERE BEING ACCOMPLISHED. NO OVERTEMP OCCURRED AND RELIGHT WAS SUCCESSFUL ON SECOND ATTEMPT AT FL250. ENGINE OPERATION WAS NORMAL FOR THE REMAINDER OF TOct 17, 1996 · N612US · Boeing 747251B · Engine (Turbine/Turboprop)SDR EIAA9616640Seal · leakingANC - NR 4 ENGINE PRECAUTIONARY SHUT DOWN AT FL 331, MACH .84, DUE TO LOW OIL QTY AND FLUCTUATING PRESSURE (30 PSI). UPON TROUBLESHOOTING, FOUND OIL COMING FROM THE GENERATOR PAD DRAIN LINE. REPLACED THE GENERATOR PAD DRIVE SEAL PER MM. LEAK CHECK AND OPS CHOct 3, 1996 · N689UP · Boeing 747SR46 · Turbine Engine Accessory DriveSDR 9620516717Comp Blades · damagedDURING CRUISE, THE NR 3 ENGINE EXPERIENCED MULTIPLE COMPRESSOR STALLS AND SUBSEQUENT ENGINE FAILURE. CREW FOLLOWED COM PROCEDURE, SHUT DOWN THE ENGINE AND DIVERTED TO MSP WITHOUT FURTHER INCIDENT. BORESCOPE INSPECTION OF THE ENGINE REVEALED DAMAGE TO THE 6THSep 25, 1996 · N617US · Boeing 747251F · Turbine Engine Compressor SectionSDR 9618916613Compressor · stalledEN ROUTE, THE NR 4 ENGINE EXPERIENCED COMPRESSOR STALL AT TOP OF DESCENT. CREW FOLLOWED COM PROCEDURE AND SHUT DOWN THE ENGINE. DECLARED EMERGENCY AND CONTINUED FLIGHT TO MSP WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTION REVEALED METAL IN TAILPIPE. THE Aug 29, 1996 · N613US · Boeing 747251B · Turbine Engine Compressor SectionSDR P5CA9600448Exhaust Case · crackedNR 1 ENGINE TURBINE EXHAUST CASE S-RAIL CRACKED AT 10 O'CLOCK. WELDED AND STRESS RELIEVED PER PRATT AND WHITNEY MAINT MANUAL 72-53-01.Jul 31, 1996 · N858FT · Boeing 747123 · Turbine SectionSDR 9615666729Compressor · stalledWHILE WAITING FOR TAKEOFF, THE NR 4 ENGINE EXPERIENCED A SILENT COMPRESSOR STALL. AS EGT ROSE TO 950 DEGREES AND OIL PRESSURE LOW LIGHT ILLUMINATED, CREW FOLLOWED COCKPIT OPERATING PROCEDURE, SHUT DOWN THE ENGINE, AND RETURNED TO THE GATE. MAINTENANCE PERFORJul 20, 1996 · N629US · Boeing 747251F · Turbine Engine Compressor SectionSDR 9614696719Egt Indicator · malfunctionedDURING TAKEOFF ROLLOUT, THE NR 3 ENGINE EGT OVERTEMPED. TAKEOFF WAS ABORTED AND THE ENGINE WAS SHUT DOWN WHILE STILL IN REVERSE. MAINTENANCE INSPECTED ENGINE INLET, EXHAUST AND ALL 3.5 BLEED PORTS, NO DISCREPANCIES NOTED. REPLACED EGT INDICATOR AND PERFORMEJul 3, 1996 · N169US · Boeing 747251F · Engine EGT/TIT Indicating SystemSDR 9613676717Engine · malfunctionedDURING TAKEOFF ROLL, THE NR 1 ENGINE EGT WENT INTO THE YELLOW RANGE FOR APPROXIMATELY FIVE MINUTES. THE EGT THEN SETTLED AT 910 DEGREES AT FL250. ALSO, THE NR 1 ENGINE NACELLE TEMPERATURE 'B' LOOP WENT TO TOP OF GREEN FOR FIVE MINUTES, WITH NR 1 ENGINE OIL PJun 21, 1996 · N617US · Boeing 747251F · Engine (Turbine/Turboprop)SDR 9613336614Compressor · stalledTHE NR 1 ENGINE EXPERIENCED A COMPRESSOR STALL AND FLAMES OUT THE TAILPIPE. BOTH EGT AND EPR PEGGED FOR 5 SECONDS. THE NR 1 ENGINE WAS SHUT DOWN AND THE FLIGHT DIVERTED TO ANC WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND METAL IN THE NR 1 ENGINE TAILPIPE. AJun 17, 1996 · N614US · Boeing 747251B · Turbine Engine Compressor SectionSDR P5CA9600275Exh Duct · crackedFOUND NR 2 ENGINE 3.5 BLEED AIR LOWER RIGHT HAND EXHAUST DUCT CRACKED. REMOVED DUCT, WELDED IAW BAC5975, REINSTALLED DUCT IAW MM 75-32-06.Jun 4, 1996 · N853FT · Boeing 747122 · Pneumatic Distribution SystemSDR CA960723525Fire Loop · intermittent(CAN) #4 FIRE DETECTION LIGHT ON CAPTAIN'S ANNUNCIATOR PANEL. #4B NACELLE TEMPERATURE INDICATOR NEEDLE SHOWED 5-6 UNITS, AS POWER WAS ADVANCED ON TAKEOFF ROLL. REJECTED. #4 NACELLE TEMPERATURE INDICATOR REMAINED AT 3 UNITS EVEN AFTER SHUTDOWN. NO OTHER ABNORMAMay 19, 1996 · Boeing 747238B · Fire DetectionSDR 9605736718Egt Indicator · malfunctionedDURING TAKEOFF ROLL, THE NR 1 ENGINE EGT EXCEEDED 1,000 DEGREES WITH NO INDICATOR LIGHT. CREW ABORTED TAKEOFF; SUBSEQUENT ENGINE SHUT-DOWN AND RETURNED TO GATE. REPLACED THE NR 1 EGT INDICATOR AND PERFORMED INSTALLATION RESISTANCE CHECK INCLUDING EGT INDICATMar 9, 1996 · N618US · Boeing 747251F · Engine EGT/TIT Indicating SystemSDR 9605286718Power Lever · malfunctionedDURING TAKEOFF ROLL, THE NR 3 ENGINE THROTTLE WOULD NOT ADVANCE PAST 80 PERCENT N2. TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED THE NR 3 THROTTLE CABLE AT FUEL CONTROL AND FOUND OK. SEQUENCE MECHANISM AND THRUST LEVER ATMar 4, 1996 · N618US · Boeing 747251F · Power LeverSDR 9606006612Engine · out of rigDURING LANDING ROLLOUT, THE NR 4 ENGINE STALLED IN REVERSE. THE ENGINE WAS SHUTDOWN WHILE STILL IN REVERSE AND WITH EGT CLIMBING THROUGH 750 DEGREES. PERFORMED STATIC BLEED CHECK, CHECKED RABS, RAN ENGINE IN REVERSE AND ALL CHECKS WERE NORMAL. FOUND NR 1 ENFeb 16, 1996 · N612US · Boeing 747251B · Fuel Controlling SystemSDR EIAA9605Engine · flamed outNR 1 ENGINE FLAMED OUT AT FL 370, NOTHING UNUSUAL NOTED, FUEL X-FEED AT TIME, NORMAL AIRSTART ACCOMPLISHED. ENGINE OPERATED NORMAL FOR REST OF FLIGHT. INSPECTED COMPRESSOR INLET, TURBINE SECTION AND CHECKED FUEL SCREENS, FOUND NO DEFECTS IAW EIA MAINTENANCE Feb 15, 1996 · N481EV · Boeing 747132 · Engine (Turbine/Turboprop)SDR 9603116613Engine · high oil useEN ROUTE, THE NR 1 ENGINE HAD HIGH OIL CONSUMPTION. CREW DUMPED 15,000 LBS OF FUEL AND DIVERTED TO SFO WITHOUT FURTHER INCIDENT. AIRCRAFT IS SCHEDULED FOR NR 1 ENGINE CHANGE.Feb 12, 1996 · N613US · Boeing 747251B · Turbine Engine Oil SystemSDR TWRA9606Oil System · low serviceGRU - FLT 60 - DURING CLIMB-OUT OF GRU, FLIGHT CREW REPORTED IFSD OF NR 3 ENGINE DUE TO LOW OIL PRESSURE (ZERO). AIRCRAFT RETURNED TO GRU. MCC WAS NOTIFIED. WHILE ON THE GROUND AT GRU, MAINTENANCE CHECKED CHIP DETECTORS AND ADDED 6 GALLONS OF OIL. HIGH POWFeb 3, 1996 · N614FF · Boeing 747238B · Turbine Engine Oil SystemSDR TWRA9607Scavenge Line · cloggedFLT 60 - DURING CLIMB-OUT FROM GRU, FLIGHT CREW AGAIN SHUT NR 3 ENGINE DOWN DUE TO LOW OIL PRESSURE AND LOSS OF OIL QUANTITY. SAME ITEM AS PREVIOUSLY REPORTED. AIRCRAFT RETURNED ONCE AGAIN TO GRU. THE FLIGHT WAS CANCELLED AND THE ENGINE WAS PREPARED FOR 3 EFeb 3, 1996 · N614FF · Boeing 747238B · Turbine Engine Compressor SectionSDR 9602776612Fuel Control · froze upCREW ABORTED TAKEOFF DUE TO NR 1 ENGINE UNABLE TO REACH TAKEOFF POWER. MAINTENANCE APPLIED HEAT TO THE FUEL CONTROL PS4 LINE AND ALL INDICATIONS WERE NORMAL. AIRCRAFT RETURNED TO SERVICE.Feb 1, 1996 · N612US · Boeing 747251B · Fuel Controlling SystemSDR 9602266612Engine · failedEN ROUTE NRT-SFO, THE NR 1 ENGINE OIL PRESSURE AND QUANTITY DECREASED TO ZERO. CREW FOLLOWED COCKPIT OPERATING PROCEDURE, SHUT ENGINE DOWN, DECLARED EMERGENCY, AND DESCENDED TO FL 250. FLIGHT DIVERTED TO HNL AND LANDED WITHOUT FURTHER INCIDENT. AIRCRAFT WASJan 27, 1996 · N612US · Boeing 747251B · Engine (Turbine/Turboprop)SDR 9521656613Engine · malfunctionedDURING CRUISE, THE NR 3 ENGINE ROLLED BACK TWICE WITH EGT, N1 AND FUEL FLOW GOING TO BOTTOM OF SCALE. WHEN THE THRUST LEVER WAS ADVANCED, ALL READINGS RETURNED TO NORMAL AND THE REMAINDER OF THE FLIGHT WAS UNEVENTFUL. FUEL PRESSURES WERE CHECKED, THE FUEL PUDec 27, 1995 · N613US · Boeing 747251B · Engine Fuel and ControlSDR EIAA9571Engine · req'd oilPRECAUTIONARY NR 2 ENGINE SHUTDOWN AT TOP OF DESCENT FOR LOW ENGINE OIL QTY. ENGINE OIL TEMP AND PRESSURE NORMAL. ENGINE NR 2 COWLING OPENED AND INSPECTED/CLEANED NR 2 ENGINE OF ALL GREASE AND OIL. ENGINE RUN PERFORMED AT IDLE POWER. FOUND NO SIGN OF OIL LDec 24, 1995 · N479EV · Boeing 747132 · Turbine Engine Oil SystemSDR EIAA9572Nr 2 Bearing · oil leakHKG - NR 2 ENGINE OIL QTY DROPPED BELOW ONE-QUARTER, PRECAUTIONARY SHUTDOWN, RESTARTED FOR LANDING, ENGINE OIL TEMP AND PRESSURE NORMAL. FOUND OIL LEAKING FROM NR 2 BEARING BREATHER TUBES (AT ELBOW) WHEN ENGINE NR 2 WAS RUN AT HIGH POWER SETTINGS. REPLACED SDec 24, 1995 · N479EV · Boeing 747132 · Turbine Engine Compressor SectionSDR EIAA9569Engine · oil leakDURING CRUISE, NR 2 ENGINE OIL QUANTITY BEGAN DECREASING AT MODERATE RATE. WHEN QTY REACHED EMPTY PULLED POWER BACK TO IDLE. AFTER A FEW MINUTES QTY ROSE A LITTLE THEN BELOW EMPTY MARK. AS PRECAUTIONARY SHUT DOWN ENGINE. DURING WINDMILLING MAINTAINED POS ODec 18, 1995 · N479EV · Boeing 747132 · Turbine Engine Oil System
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