Pratt & Whitney JT9D-7J

Service difficulty reports · 257

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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 = 'JT9D7J'
  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 98UAL900296Tube · crackedA 1.2 INCH CRACK WAS FOUND IN 65B02668-3 DIAGONAL SUPPORT TUBE AT STA 2598 HORIZONTAL STABILIZER HINGE SUPPORT BULKHEAD. CRACK WAS AT UPPER END OF TUBE, BEGINNING AT TUBE EDGE AND RUNNING DOWN THROUGH FIRST ROD END ATTACH FASTENER HOLE. TUBE ASSEMBLY REPLACEJun 14, 1998 · N165UA · Boeing 747238B · Horizontal Stabilizer StructureSDR 9809536614Engine · flamedoutWHILE AT CRUISE, THE NR 4 ENGINE EXPERIENCED A FLAME-OUT. THE RESTART WAS SUCCESSFUL AND THE FLIGHT CONTINUED TO NRT WITHOUT FURTHER DIFFICULTY. THE ENGINE OPERATION WAS NORMAL FOR THE REMAINDER OF THE FLIGHT. MAINTENANCE INSPECTED THE ENGINE WITH NO DEFECTJun 10, 1998 · N614US · Boeing 747251B · Engine (Turbine/Turboprop)SDR CKSA98337Engine · failedAFTER TAKEOFF, NR 1 ENGINE HAD A FIRE WARNING SHUTDOWN ENGINE AS PER AOM DISCHARGED ONE FIRE BOTTLE, LIGHT WENT OUT. ON POST FLIGHT, FOUND HEAT DAMAGE TO BOTH COWLS, AFT FIRE LOOP, AND AFT WIRING HARNESS. DETERMINED ACFT WILL DO 3 ENGINE FERRY. NR 1 ENGINE May 25, 1998 · N707CK · Boeing 747269B · Engine (Turbine/Turboprop)SDR 9806896740Engine · overtempAFTER LANDING AND SLOWING TO TAXI SPEED, THE NR 1 ENGINE COMPRESSOR STALLED WITH THE TOWER REPORTING FLAMES FROM THE TAILPIPE. THE ENGINE WAS SHUT DOWN, MAXIMUM EGT WAS 1089C FOR 35 SECONDS. MAINTENANCE CHANGED THE ENGINE DUE TO THE OVERTEMP.Apr 16, 1998 · N640US · Boeing 747251F · Engine (Turbine/Turboprop)SDR 98UAL900148Actuator · malfunctionedAFTER GEAR RETRACTION AND PLACING THE GEAR HANDLE IN THE OFF POSITION THE RIGHT BODY DOOR LIGHT CAME ON, BOTH PRI AND ALT. NECESSARY TO RECYCLE GEAR TO PUT LIGHT OUT. *S/D* FOUND LEVER LOCK CONTACTING RELEASE CAM. CONTACT PREVENTED INTERNAL LOCK FROM ACTUAApr 13, 1998 · N165UA · Boeing 747238B · Landing Gear Door ActuatorSDR EIAA980151Oil System · lack of lubeJFK - SHUTDOWN NR 3 ENGINE AFTER 30 MINUTES INTO FLIGHT DUE TO LOSS OF OIL PRESSURE. OIL VISCOSITY WAS VERY THICK AND ENGINE REQUIRED 26 QUARTS TO FILL. (M)Mar 29, 1998 · N471EV · Boeing 747273C · Turbine Engine Oil SystemSDR TWRA9815Compressor · stalledIN CRUISE, SUSPECT COMPRESSOR STALL NR 3 ENGINE FOLLOWED BY POWER LOSS AND FLAME OUT. VIBRATION REPORTED BY FLIGHT ATTENDANTS AT TIME OF POWER LOSS. NO EGT OR ENGINE PARAMETERS EXCEEDED. ENGINE SHUT DOWN 1540Z. RELIGHT AT 1545Z, OPS NORMAL REMAINDER OF FLTMar 28, 1998 · N611FF · Boeing 747282B · Turbine Engine Compressor SectionSDR CKSA98087Duct · damagedNR 2 ENG FIRE WARNING SOUNDED ON TAKEOFF AND THRUST LEVER WAS RETARDED TO IDLE. WHEN THRUST LEVER WAS RETARDED, FIRE WARNING CEASED. SHUT ENG NR 2 DOWN AS B-LOOP NACELLE TEMP HAD INCREASED NEAR BOTTOM OF RED ZONE AND A-LOOP STAYED NEAR BOTTOM OF YELLOW ZONE.Mar 8, 1998 · N708CK · Boeing 747269B · Pneumatic Distribution SystemSDR CKSA98086Wire · brokenAFTER T/O, NR 2 ENGINE FIRE WARNING SOUNDED. FIRED BOTH BOTTLES, NACELLE TEMP REMAINED AT TOP OF SCALE A-LOOP (DMI'ED) INOP. INFLIGHT MECHANICS VIEWED NR 2 ENGINE AFTER FIRE WARNING AND OBSERVED NO ABNORMAL INDICATIONS. ENGINE SHUTDOWN BY CREW ACCORDING TO Mar 7, 1998 · N708CK · Boeing 747269B · Fire Protection System WiringSDR 9803396740Epr Indication · malfunctionedDURING TAKEOFF ROLL, THE NR 1 ENGINE WOULD NOT REACH TAKEOFF EPR WITHOUT EXCEEDING THE EGT REDLINE. THE MAXIMUM EPR REACHED WAS 1.30. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE CLEANED THE EPR TRANSMITTER AND INDICATOR CONNECFeb 25, 1998 · N640US · Boeing 747251F · Engine Pressure Ratio (EPR)SDR 9804866740Connectors · dirtyDURING TAKEOFF ROLL, THE NR 1 ENGINE WOULD NOT REACH TAKEOFF EPR WITHOUT EXCEEDING THE EGT REDLINE. THE MAXIMUM EPR REACHED WAS 1.30. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE CLEANED THE EPR TRANSMITTER AND INDICATOR CONNECFeb 25, 1998 · N640US · Boeing 747251F · Engine Pressure Ratio (EPR)SDR EIAA98095Engine · bird strikeHKJK - AFTER TAKEOFF WHILE FLAPS WERE IN TRANSIT, AT ABOUT 800-1000 FT. NR 4 ENGINE FAILED DO TO BIRD STRIKE. TWO FAN BLADES ARE BROKEN OFF APPROX 14 INCHES FROM THE BLADE ROOT AND ALL OTHERS BLADES ARE DAMAGED. THE FAN CASE IS SPLIT ALL THE WAY AROUND APPRFeb 24, 1998 · N485EV · Boeing 747212B · Engine (Turbine/Turboprop)SDR 9803146716Start Valve · failedDURING CLIMB, THE NR 3 START VALVE LIGHT ILLUMINATED. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT RETURNED TO NRT. MAINTENANCE CHANGED THE START VALVE AND THE START PRESSURE SWITCH. ALL INDICATIONS WERE NORMAL AND THE AIRCRAFT RETURNED TO SERVICE. EXACT PARTFeb 18, 1998 · N616US · Boeing 747251F · Engine Start Valves/ControlsSDR 9803166611Fuel Control · failedON TAKEOFF ROLL, THE NR 4 ENGINE WOULD NOT PRODUCE TAKEOFF EPR WITH THE THRUST LEVER AT THE MECHANICAL STOP. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REPLACED THE FUEL CONTROL AND THE FOLLOW-UP ENGINE RUN WAS NORMAL.Feb 18, 1998 · N611US · Boeing 747251B · Fuel Control/Turbine EnginesSDR 98UAL900076Battery Pack · dischargedPER CREW, EMERGENCY LIGHTS ILLUMINATED ROWS 13 TO 17. CYCLING CIRCUIT BREAKER AND FLIGHT DECK SWITCH, NO HELP. *S/D* PROBLEM WAS RESOLVED WHEN THE BATTERY PACK WAS REPLACED. PROBABLE CAUSE WAS DEGRADATION OF THE NICAD BATTERIES.Feb 18, 1998 · N165UA · Boeing 747238B · Emergency LightingSDR 9803596740Connector · looseAFTER TAKEOFF DURING CLIMB, THE NR 1 ENGINE EGT BEGAN RISING RAPIDLY. THE NR 1 POWER LEVER WAS RETARDED TO MAINTAIN THE EGT WITHIN LIMITS. WITH ALL ENGINE EPRS MATCHED, THE NR 1 EGT WAS 250C ABOVE THE OTHERS. THE AIRCRAFT RETURNED TO ANC WITHOUT DIFFICULTY.Feb 13, 1998 · N640US · Boeing 747251F · Engine EGT/TIT Indicating SystemSDR EIAA98005Fan Blades · bentJFK - APPROACH INTO JFK RUNWAY 22L, APPROXIMATELY 50-100 FEET, HAD BIRD STRIKE IN NR 1 ENGINE. LANDED WITHOUT INCIDENT, WITH AN OUTSIDE AIR TEMP OF 42 DEGREES F. REMOVED AND REPLACED FIVE PAIRS OF FAN BLADES PER MM 72-31-02. INSPECTED NR 1 ENGINE FOR BIRD IJan 29, 1998 · N470EV · Boeing 747273C · Turbine Engine Compressor SectionSDR 98UAL900041Panel · missingNOSE GEAR OPENED AT 310KTS AND FL 320. SLOWED TO 270KTS GEAR HANDLE UP, NO HELP. LESS VIBRATION WITH GEAR HANDLE UP. *S/D* FOUND PANEL 65B07937-85 MISSING. ABSENCE OF PANEL ALLOWED PRESSURIZATION OF NOSE GEAR WHEEL WELL TO ALLOW GEAR DOORS TO MOVE OFF SENSJan 28, 1998 · N158UA · Boeing 747238B · Fuselage Miscellaneous StructureSDR 98ZZZX2572Combustion Case · crackedFPI INSPECTION OF THIS CASE FOUND A 360 DEGREE CIRCUMFERENTIAL CRACK INDICATION ON THE FRONT FLANGE. EDDY CURRENT INSPECTION FOUND AN INDICATION AROUND 20 PERCENT OF THE CIRCUMFERENCE. P & W HAVE BEEN ASKED TO INVESTIGATE THIS CASE AS PROPAGATION OF THIS CRAJan 6, 1998 · Boeing 747* · Turbine Engine Combustion SectionSDR 97UAL900890Compressor · stalled2000 FT 190 KIAS 9 DEG NUMBER 3 ENGINE 1.40 EPR REDUCING TO CLIMB, HAD COMPRESSOR STALL. EGT WENT TO 990 DEG NO FIRE LIGHT OR NO AIRFRAME VIBRATION ENGINE SHUT DOWN BY ITSELF. DUMPED 140,000 LBS OF FUEL. *S/D* SUSPECT DETERIORATION OR DAMAGE TO HPC. AT THDec 22, 1997 · N164UA · Boeing 747238B · Turbine Engine Compressor SectionSDR 97UAL900803Csd · failedDURING FLIGHT, NR 1 ENGINE CSD OUT TEMP PEGGED FULL HOT. COULD NOT DISCONNECT CSD. SHUT DOWN NR 1 ENGINE AND DIVERTED TO DEN. *S/D* DISASSEMBLY OF THE CSD REVEALED THE UNIT HAD SEVERE HEAT DAMAGE. THE DISCONNECT SOLENOID WAS FOUND TO BE FUNCTIONAL. HOWEVOct 31, 1997 · N163UA · Boeing 747238B · Alternator-Generator DriveSDR 97UAL900792Light · inoperativeMID GALLEY EMERGENCY CEILING LIGHT BETWEEN 2 LEFT AND RIGHT INOP. REPLACED LIGHT ASSEMBLY, OP CK OK.Oct 24, 1997 · N159UA · Boeing 747238B · Emergency LightingSDR UIEA9709Engine · failedCREW REPORTS: FLT NR LAU 322/28, BOG/MIA - DEPARTED BOG ON 9-28-97 AND EXPERIENCED AN ABORTED TAKEOFF DUE NR 4 ENGINE FAN BLADE SEPARATION (2 EACH). IN ADDITION, EXHAUST TAIL PLUG EXITED THE ENGINE AND WAS RECOVERED FROM THE RUNWAY. FAN EXIT GUIDE VANES EXHOct 20, 1997 · N809MC · Boeing 747228F · Engine (Turbine/Turboprop)SDR 9719006716Breather Tube · leakingDURING CRUISE, THE OIL QUANTITY INDICATED FOR THE NR 4 ENGINE DROPPED TO ZERO. THE ENGINE WAS SHUT DOWN AND THE FLIGHT DIVERTED TO MNL. MAINTENANCE FOUND THE UPPER RIGHT MAIN ENGINE BREATHER TUBE LEAKING. THE TUBE WAS REPLACED AND NO LEAKS WERE NOTED DURINGOct 9, 1997 · N616US · Boeing 747251F · Turbine Engine Oil SystemSDR 97UAL900752Tube · tornDURING SHOP OVERHAUL OF SLIDE, REMOVED FOR EXPIRATION OF TIME THE TOP TUBE DID NOT FULLY INFLATE. FOUND A 40 INCH TEAR IN UPPER CROSS OVER TUBE FROM RIGHT SIDE OF GIRT TO RIGHT UPPER TUBE. SLIDE SENT TO VENDOR FOR REPAIR.Oct 2, 1997 · N160UA · Boeing 747238B · Escape SlideSDR 97UAL900732Wire · failedA ZONE CROSS AISLE EEL LIGHT INOPERABLE. REPLACED POWER FEEDER CABLE, OPS CHECKED OK.Sep 24, 1997 · N161UA · Boeing 747238B · Light System WiringSDR 9716636729Ind Switch · malfunctionedAT FL250, THE NR 1 ENGINE START VALVE OPEN LIGHT ILLUMINATED. CREW SHUT DOWN THE ENGINE AND RETURNED TO ANC WITHOUT INCIDENT. MAINTENANCE REPLACED THE NR 1 ENGINE START VALVE INDICATING SWITCH. EXACT PART CAUSING PROBLEM TO BE DETERMINED.Aug 31, 1997 · N629US · Boeing 747251F · Engine Start Valves/ControlsSDR 97UAL900617Wire · damagedEEL LIGHTS INOPERATIVE, C-ZONE RIGHT SIDE. REPAIRED DAMAGED POWER FEEDER, CHECKED OK.Aug 14, 1997 · N159UA · Boeing 747238B · Light System WiringSDR 97UAL900593Battery Pack · dischargedMAIN ENTRY DOOR 4 RIGHT EMERGENCY DROP CEILING LIGHT INOPERABLE. *S/D* DISCHARGE OF FAILED BATTERY PACK. REPLACED BATTERY PACK.Aug 4, 1997 · N158UA · Boeing 747238B · Emergency LightingSDR 97UAL900594Light · inoperativeEEL CROSS AISLE LIGHT BETWEEN DOORS 2 LEFT AND RIGHT IS INOPERABLE. REPLACED EEL LIGHT ASSEMBLY IN AISLE FORWARD OF GALLEY, CHECKED OK.Aug 2, 1997 · N163UA · Boeing 747238B · Emergency LightingSDR 9714546611Gearbox · leakingWHILE IN CRUISE, THE NR 4 ENGINE OIL QUANTITY DROPPED TO ZERO. OIL PRESSURE FELL TO THE YELLOW BAND AND THE ENGINE POWER WAS REDUCED TO IDLE FOR TWO MINUTES. THE ENGINE WAS THEN SHUT DOWN. MAINTENANCE FOUND A COVER ON THE ENGINE ANGLE GEARBOX LOOSE. THIS WJul 25, 1997 · N611US · Boeing 747251B · Turbine Engine Accessory DriveSDR 9714566719Tr Unit · malfunctionedAFTER LANDING, THE NR 3 ENGINE THRUST REVERSER DID NOT INDICATE GREEN (FULLY DEPLOYED). THE ENGINE DID APPEAR TO GO INTO REVERSE. EGT INDICATION ROSE RAPIDLY AND THE ENGINE WAS SHUT DOWN. MAINTENANCE FOUND THE NR 3 REVERSER PART WAY DEPLOYED. REVERSER WAS Jul 25, 1997 · N619US · Boeing 747251F · Engine Thrust ReverserSDR SRAA970715Wire · brokenDURING TAKEOFF ROLL, NR 3 ENGINE EPR WAS INDICATING 1.40 EPR AND DROPPING WITH 98.6 N-1, AT 3,000 FOOT MARKER, INITIATED REJECTED PROCEDURES AT 100 KNOTS. BRAKE TEMP AT 4.0 ON SCALE. FOUND BROKEN WIRE AT EPR INDICATOR AND REPAIRED. OPS CK THE SYS WITH MM 7Jul 18, 1997 · N745SJ · Boeing 747212B · Engine Indicating System WiringSDR 97UAL900552Engine · malfunctionedTHE NUMBER TWO ENGINE IS SLOW TO RESPOND TO THRUST LEVER INCREASES DURING TAKEOFF AND CRUISE. CHECKED THROTTLE CABLES AND LINKAGES FROM TOP OF PYLON THRU MIXING BOX AND DOWN TO THE FUEL CONTROL. CHECKED RIG FROM MIXING BOX TO PART POWER STOP. NO DEFECTS NOTJul 17, 1997 · N160UA · Boeing 747238B · Engine (Turbine/Turboprop)SDR TWRA97167Compressor · stalledDURING CLIMB THROUGH APPROXIMATELY 1,500 FEET, NR 1 ENGINE COMPRESSOR STALLED. EPR 1.49, EGT 1100 DEGREES CELSIUS FOR APPROXIMATELY 2 SECONDS. ENGINE WAS SHUT DOWN (ACFT RETURN TO JFK). REMOVED AND REPLACED NR 1 ENGINE PER WIC 71-002. ENGINE RUN-UP, LEAK CJul 17, 1997 · N619FF · Boeing 747212B · Turbine Engine Compressor SectionSDR 97UAL900545Hyd Qty Ind · droppedTWO HOURS INTO THE FLIGHT THE NUMBER 1 HYDRAULIC SYSTEM QUANTITY DROPPED TO 2 GALLONS.Jul 16, 1997 · N163UA · Boeing 747238B · Hydraulic Quantity IndicatorSDR TWRA97164Fitting · failedDURING CRUISE, NR 1 ENGINE OIL PRESSURE FLUCTUATED AND DROPPED BELOW YELLOW BAND. OIL PRESSURE LIGHT ON AT PILOT'S PANEL. ENGINE FAILURE CHECK LIST ACCOMPLISHED. ENGINE SHUT DOWN ON FINAL APPROACH. ENGINE OIL PRESSURE 7 PSI. FLIGHT DIVERTED TO JFK. MAINTJul 8, 1997 · N620FF · Boeing 747212B · Turbine Engine Oil SystemSDR CKSA97315Fire Loop · malfunctionedNR 1 ENGINE A FIRE DETECTION LOOP FLUCTUATING (SPIKING INTO RED ZONE). TRANSFERRED TO DMI NR 257 IAW MEL 26-1 CAT C PLACARD INSTALLED. PERFORMED OPERATIONAL CHECK OF NR 1 ENG A LOOP, OPS CHECKS NORMAL ON GROUND. THIS CLEARS DMI 257, PLACARDS REMOVED.Jul 2, 1997 · N707CK · Boeing 747269B · Fire DetectionSDR CKSA97313Connector · dirtyNUMBER ONE ENGINE FIRE WARNING A-LOOP SHOWS INTERMITTENT FAULT. TRANSFERRED TO DMI NUMBER 250 IN ACCORDANCE WITH MEL 26-1 CATAGORY C PLACARDS INSTALLED. CLEANED FIRE LOOP CONNECTORS ON ENGINE, OPS CHECKS GOOD IAW 26-12-00. THIS CLEARS DMI 250 PLACARDS REMOVJun 26, 1997 · N707CK · Boeing 747269B · Fire DetectionSDR CKSA97279Wire · brokenNR 1 ENGINE A FIRE DETECTOR LOOP FLUCTUATING FULL SCALE. TRANSFERRED TO DMI NR 242 IAW MEL 26-2 CAT C, PLACARDS INSTALLED. REPAIRED BROKEN WIRE AT A-SYSTEM LOOP AT CANNON PLUG, OPS CHECK NORMAL IAW B747 26-11-00. THIS CLEARS DMI 242.Jun 15, 1997 · N707CK · Boeing 747269B · Fire DetectionSDR SRAA970609Engine · oil lossDURING FLIGHT, NR 1 ENGINE OIL QUANTITY DROPPED TO 1.2 GAL, OIL PRESSURE TO 47 PSI, AND OIL TEMP AT 101 DEG. SHUT DOWN ENGINE AS PRECAUTIONARY AND LANDED WITHOUT INCIDENT. REMOVED AND REPLACED NR 1 ENGINE, OPS CHECKED GOOD PER MM CH 71-00-00.Jun 14, 1997 · N745SJ · Boeing 747212B · Engine (Turbine/Turboprop)SDR CKSA97278Fire Loop · shortedNR 1 ENGINE A FIRE DETECTOR LOOP INTERMITTENTLY SPIKES HIGH CAUSING FAULT LIGHT, B-LOOP OK. FOUND FIRE LOOP-A SYSTEM LOOSE AND TOUCHING COWL. RESECURED, OPS CHECKED ON GROUND IAW CHAPTER 26-00. NO DEFECTS NOTED AT THIS TIME.Jun 13, 1997 · N707CK · Boeing 747269B · Fire DetectionSDR 97UAL900449Wire · failedOBSERVED SMOKE AND SPARKS AT SEAT 2EF. FLIGHT ATTENDANT USED FIRE EXTINGUISHER ON FLOOR. NO SIGN OF FIRE. POWER TO SEAT SHUT OFF. *S/D* REPAIRED WIRING AT SEAT 2EF, OPS CHECK OK.Jun 11, 1997 · N159UA · Boeing 747238B · Passenger Compartment EquipmentSDR EIAA970174Engine · failedJFK - LOG PAGE: E06131 - SHORTLY AFTER STARTING DESCENT, THE FLIGHT ENGINEER REPORTED THE NR 2 ENGINE OIL QUANTITY INDICATED ONE GALLON. APPROXIMATELY ONE MINUTE LATER, THE OIL PRESSURE LIGHT ON THE ANNUNCIATOR PANEL STARTED BLINKING AND THE OIL PRESSURE DRJun 8, 1997 · N482EV · Boeing 747212B · Engine (Turbine/Turboprop)SDR 9709626719Compressor · stalledDURING TAXI, CREW HEARD LOUD COMPRESSOR STALL WITH NR 2 ENGINE EGT REACHING 850C BEFORE ENGINE WAS SHUT DOWN. CREW STATED A STRONG TAILWIND AT TIME OF STALL. MAINTENANCE INSPECTED ENGINE PER FIM 71-01-00 WITH NO DEFECTS NOTED. SUBSEQUENT ENGINE START AND RUMay 2, 1997 · N619US · Boeing 747251F · Turbine Engine Compressor SectionSDR SRAA970415Scavenge Line · looseDURING FLIGHT, NR 4 ENGINE OIL QUANTITY DROPPED TO 1.2 GAL, OIL PRESSURE AT 60 PSI WITH OIL PRESSURE LIGHT FLASHING. SHUT DOWN NR 4 ENGINE AND ACCOMPLISHED AIR TURNBACK TO VCP. INSPECTED NR 4 ENGINE AND FOUND MISSING AND LOOSE BOLTS ON OIL SCAVENGE LINE TO AApr 23, 1997 · N745SJ · Boeing 747212B · Turbine Engine Oil SystemSDR 97UAL900316Connector · looseEMERGENCY EXIT LIGHT STRIP ON RIGHT SIDE OF FIRST CLASS CABIN INOP. SECURED LOOSE EMERGENCY EXIT LIGHT STRIP CONNECTOR. OPERATION CHECKS NORMAL.Apr 20, 1997 · N165UA · Boeing 747238B · Emergency LightingSDR 97UAL900284Breather Tube · crackedNR 4 ENGINE SHUTDOWN DUE TO OIL FILTER LIGHT AFTER TAKEOFF. AIRCRAFT RETURNED TO FIELD. *S/D* NR 3 BREATHER TUBE CRACKED FORWARD OF THE ATTACHMENT WELD FOR THE RING GROOVE, ALLOWING 15TH STAGE COMPRESSOR AIR INTO THE NR 3 BEARING COMPARTMENT. REPLACED BREAApr 13, 1997 · N159UA · Boeing 747238B · Turbine Engine Oil SystemSDR CKSA97023Turbine · damagedNR 1 ENGINE STARTED LOOSING POWER RIGHT AFTER TAKEOFF. EPR AND N1 DROPPING EGT AT 800 DEGREES. TRIED RAPID RESTART, ENGINE WOULD NOT RUN. SHUTDOWN PER EMERGENCY CHECKLIST. WINDMILL TIME 1 HOUR 16 MINUTES OIL PRESSURE 10 PSI. NOTE: DUMPED FUEL DOWN TO 630Mar 7, 1997 · N707CK · Boeing 747269B · Turbine SectionSDR 9704266740Egt Red Light · illuminatedDURING TAKEOFF, NR 3 ENGINE EGT RED LIGHT ILLUMINATED. TAKEOFF WAS ABORTED AT 90 KNOTS. MAX EGT REACHED WAS APPROXIMATELY 850 DEGREES. MAINTENANCE INSPECTED AND BORESCOPED ENGINE, NO DISCREPANCIES NOTED.Feb 27, 1997 · N640US · Boeing 747251F · Engine Temperature Indicating System
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