Pratt & Whitney PW4077
Service difficulty reports · 3,169
Newest first. General aviation reporting is voluntary.
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 engine_model_key = 'PW4077' 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.
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 = 'PW4077' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR 97UAL900359Windshield · fracturedCREW REPORTED, RIGHTHAND WINDSHIELD SHATTERED DURING CRUISE. NO PRESSURIZATION PROBLEMS NOTED. CREW TURNED OFF WINDOW HEAT PER IRREGULAR PROCEDURES. CREW ELECTED TO DESCEND FROM FLIGHT LEVEL 350 TO FL 290 AND CONTINUE TO ORD. WINDSHIELD REPLACED AT ORD. WSDR 97UAL900360Torque Tube · shearedLEFT PACK TURNED OFF DUE TO VIBRATION AT DOOR 2L/2R. *S/D* FOUND LEFT PACK RAM AIR DOOR TORQUE TUBE SHAFT (PN 213W3130-3) SHEARED AND INLET SIDEWALL DAMAGED AROUND INBOARD BEARING ATTACH OPENING. REPLACED TORQUE TUBE AND INBOARD AND OUTBOARD CAP ASSEMBLIES.SDR 97UAL900326Skin · crackedNR 6 LEADING EDGE SLAT (PN 114W4508-29) CRACKED AT INBOARD TRACK CUTOUT. ONE CRACK THREE INCHES LONG AND THE SECOND IS FIVE INCHES LONG. *S/D* INTERIM REPAIR ACCOMPLISHED AND REPETITIVE INSPECTIONS SCHEDULED AT TEN CYCLE INTERVALS. PERMANENT REPAIR ACCOMPLSDR 97UAL900285Smoke Detector · malfunctionedFIRE WARNING AFT EICAS MESSAGE AND ANUNCIATION LIGHT APPEARED. NO EVIDENCE OF FIRE. SUPPLEMENTAL DATA UPDATE REPLACED CARGO SMOKE DETECTOR UNIT (PN 2119835-5). NO REPEAT OCCURRENCES.SDR 97UAL900328Bracket · failedDURING GROUND OPERATIONAL CHECK OF RAM AIR TURBINE (RAT), EXCESSIVE VIBRATION WAS NOTED. INVESTIGATION REVEALED BUSHINGS INSTALLED AT INBOARD RAT MOUNTING BRACKET HAD MIGRATED OUT OF THE SUPPORT, ALLOWING EXCESSIVE FREE PLAY. INBOARD MOUNT BRACKET (P/N 272W9SDR 97UAL900279Apu Engine · will not startAPU WILL NOT START.SDR 97UAL900296Slat · crackedLEADING EDGE SLAT NR 9 (114W4160-8) CENTER COVER PANEL HAS TWO CRACKS, 2 INCH AND 8 INCH. INTERNALLY FOUND THREE ADDITIONAL CRACKS ON NOSE BEAM WEB 1 INCH TO 3 INCH IN LENGTH UNDER STIFFENERS BETWEEN OUTBOARD MAIN TRACK RIB ASSY AND O/B DEFLECTION CONTROL RIBSDR 97UAL900295Graphic Gen · malfunctionedCAPTAIN AND FIRST OFFICER NAVIGATION DISPLAYS BLANKED SIMULTANEOUSLY FOR APPROXIMATELY FOUR MINUTES JUST AFTER RECEIVING TCAS ADVISORY. OTHER AIRCRAFT 1000 FEET ABOVE. DISPLAYS RECOVERED AFTER OTHER AIRCRAFT CLIMBED TO HIGHER ALTITUDE. *S/D* INVESTIGATION SDR 97UAL900231Relay · failedAFTER DEPARTING, EXPERIENCED MAIN BATT FAILURE STATUS MESSAGE. DIVERTED TO NEWARK. *S/D* GROUND SERVICE SELECT RELAY FAILED. THIS CAUSED BOTH THE APU AND MAIN BATTERY CHARGER TO FAIL RESULTING IN BATTERY DISCHARGE. RELAY WAS REPLACED.SDR 97UAL900229Eec · malfunctionedAPPROXIMATELY ONE HOUR INTO FLIGHT, EICAS STATUS MESSAGE ENG IGN R1, ENG IGN R2 AND ENG FUEL VLV R DISPLAYED. AIRCRAFT RETURNED TO FIELD. *S/D* REPLACED ENGINE EEC. ALL MESSAGES CLEARED. UPDATE: FOUND EICAS STATUS MESSAGES TO BE NUISANCE FAULTS FROM PREVSDR 97UAL900248Fitting · brokenENTRY DOOR 1L AFT ARMING SUPPORT FITTING (DOOR SIDE) FOUND BROKEN. MISRIGGED FLOOR FITTING CAUSED GIRT BAR TO REMAIN ATTACHED TO FLOOR FITTING WHEN GIRT BAR MOVED UPWARD DURING DOOR OPERATION. THIS CAUSED THE FITTING TO FAIL. REPLACED SUPPORT FITTING 131W18SDR 97UAL900203Gear · failedAPU WILL NOT START. BATTERY REPLACED FOR LOW VOLTAGE AND STARTER REPLACED. STILL NO START. FOUND STARTER GEAR (P/N 3860823-1) WORN AND ELECTRIC CLUTCH PACK DAMAGED. ADDITIONAL, DAMAGE FOUND IN AREA OF CLUTCH HOUSING DURING CLUTCH REMOVAL RESULTED IN APU RESDR 97UAL900180Lead Assy · shortedSTATUS MESSAGE R2 IGN APPROXIMATELY ONE HOUR INTO FLIGHT. AIRCRAFT RETURNED TO FIELD. *S/D* IGNITOR LEADS AND EXCITERS FROM R1 AND R2 RETURNED TO PRATT AND WHITNEY FOR INVESTIGATION. UPDATE: R2 EXCITER (10-621630-1) AT FIFTY PERCENT OUTPUT. R1 IGNITION LSDR 97UAL900178Check Valve · damagedAIRCRAFT RETURNED TO BLOCKS WITH LOUD BANGING NOISE. FOUND VIBRATION IN DUCTING FROM LEFT PACK TO THE APU. *S/D* LOUD BANGING AND FLAMES OUT OF EXHAUST WHILE MOTORING APU. FOUND .125 INCH DIAMETER OVAL HOLE IN APU CHECK VALVE (P/N 3202610-4). APU REPLACEDSDR 97UAL900120Cowl · delaminatedAPU WILL NOT START AFTER LANDING. MADE TWO ATTEMPTS. ENGINE SUFFERED BROKEN AND TORN BLADES AS A RESULT OF FOREIGN OBJECT DAMAGE AND WAS REPLACED. CAUSE OF F.O.D. WAS DETERMINED TO BE DELAMINATION OF THE ENGINE BELL MOUTH. PART TOTAL CYCLES, 864.SDR 97UAL900109Gyro · failedSECONDARY ATTITUDE AIR DATA REFERENCE UNIT (SAARU) FAILURE TWO HOURS AFTER DEPARTING ORD EN ROUTE LHR. RETURNED TO ORD. SUPPLEMENTAL DATA UPDATE SAARU WAS REPLACED AND AIRCRAFT RETURNED TO SERVICE. INVESTIGATION BY MANUFACTURER REVEALED A FAILURE OF THE X GSDR 97UAL900133P2/T2 Probe · blockedON TAKEOFF, NR 2 ENGINE DID NOT DEVELOP FULL TAKEOFF EPR. ENGINE RPM ALSO LOWER THAN TARGET. MAX EPR LIMIT FOR NUMBER 2 ENGINE WAS LOWER THAN NUMBER 1 ENGINE. ENGINE THRUST RETURNED TO NORMAL AFTER TAKEOFF AND REMAINED NORMAL. *S/D* MAINTENANCE REPLACED TSDR 97UAL900094Flap · crackedDURING C-CHECK. EXTENSIVE CRACKING WAS DISCOVERED ON THE 114W4160-8 SLAT ASSEMBLY. CRACKS EXISTED IN THE 114W4562-4 COVE SKIN ASSEMBLY AND THE 114W6640 NOSE BEAM ASSEMBLY. PRELIMINARY FINDINGS INDICATE THAT CRACKING APPEARS TO BE THE RESULT OF HIGH CYCLE SONSDR 97UAL900108Connector · looseENGINE FUEL VALVE RIGHT EICAS MESSAGE. PULLED FIRE SHUTOFF HANDLE TO STOP FUEL FLOW AND SHUT DOWN ENGINE. SUPPLEMENTAL DATA UPDATE FOUND MAINTENANCE MESSAGE 73-60212. TROUBLESHOT PER FIM 73-22 TASK 801. FOUND CONNECTOR DM76001C ON FUEL METERING UNIT LOOSE.SDR 97UAL900107Controller · failedACFT DEPARTED MIA WITH RT OVERHEAD PANEL BUSS CONTROLLER DEFERRED. SUBSEQUENTLY LT OVERHEAD PANEL BUS CONTROLLER FAILED. ACFT RETURNED TO MIA. LT OVERHEAD PANEL BUSS CONTROLLER CAME BACK ON LINE ABOUT 3 MINUTES AFTER INITIAL FAILURE. NO HISTORY OF PROBLEMSSDR 97UAL900076Hose · wornCENTER HYDRAULIC SYSTEM FLUID PRESSURE LOSS AFTER TAKEOFF. AIRCRAFT CONTINUED TO IAD, LANDED UNDER AMBER ALERT. *S/D* CAUSE ATTRIBUTED TO LEAK AT THE LEFTHAND MAIN LANDING GEAR ACTUATOR PRESSURE HOSE CAUSED BY CHAFING AGAINST HOSE GUIDE. INSTALLED NEW HOSESDR 97UAL900061Pull In Pin · out of adjustAT DEPARTURE, REAR CARGO PIT DOOR WOULD NOT CLOSE. DOOR WOULD CLOSE ALMOST ALL THE WAY. LUBED CAMS AND CYCLED SEVERAL TIMES. FINALLY, DOOR CLOSED FULLY. COULD NOT MANUALLY LOCK DOOR EITHER. DOOR IS LOCKED CLOSED. AFT PULL-IN PIN (PN 146W6842-2) OUT OF ASDR 97UAL900037Rivets · shearedRIGHT KRUEGER FLAP HANGING DOWN ON ARRIVAL, TORQUE TUBE SHEAR RIVETS SHEARED.SDR 97UAL900027Contactor · failedAPU SHUT DOWN AT GATE. AIRCRAFT WILL NOT ACCEPT APU POWER. INVESTIGATION REVEALS CONTACTOR (START RELAY) FAILED (WOULD NOT CLOSE). REPLACED PN BP493-1. OPERATIONAL CHECK OK.SDR 97UAL900028Floor Fitting · out of adjustDOOR 1L WILL NOT OPEN ON ARRIVAL. CATCHES ON GIRT BAR LATCHES. *S/D* ARMING FLOOR FITTINGS 131W1830 OUT OF RIG, CAUSING SLIDE GIRT BAR TO HANG UP ON FITTINGS WHEN DOOR IS DISARMED. ADJUSTED FORWARD AND AFT FLOOR FITTINGS INWARD.SDR 97UAL900083Arming Cable · brokenESCAPE SLIDE AT DOOR 2 LEFT DROPPED ONTO FLOOR WITHOUT DEPLOYING PRIOR TO DEPARTURE. EPAS (EMERGENCY POWER ASSIST SYSTEM) SYSTEM FUNCTIONED NORMALLY. DOOR ASSIST BOTTLE WAS DEPLETED, READS ZERO PRESSURE. REPLACED SLIDE AND EPAS RESERVOIR. REPLACED CABLE PSDR 96UAL900992Transformer · failedCABIN CONTROL PANEL 4R SMOKING. USED TWO HALON BOTTLES TO EXTINGUISH SMOKE. *S/D* MULTIPLE COMPONENT FAILURES WITHIN THE CACP TXFMR T961, BACKLIGHT NR 2 BOTH FILAMENTS OPEN, POWER SUPPLY HEATER RESISTORS R995, R996, R997 AND R998 AND ASSOCIATED CIRCUIT TRACSDR 96UAL900980Generator · failedEN ROUTE, LOST RIGHT ENGINE DRIVEN GENERATOR. RETURNED TO MIA.SDR 96UAL901014Connector · damagedAPU GENERATOR DROPS OFF LINE AFTER FOUR OR FIVE MINUTES OF OPERATION. FOUND OVERHEAT CONDITION FOR GENERATOR FEEDERS CABLES. *S/D* AREA OF OVERHEAT WAS AT THE CABLE APU GENERATOR POWER PHASE LEAD TERMINAL INTERFACE. SUFFICIENT RESISTANCE WAS PRESENT TO CAUSDR 96UAL900924Pack · malfunctionedON CLIMBOUT, LEFT AIR CONDITIONING PACK TRIPPED AT FLIGHT LEVEL 050. RESET PACK BUT TRIPPED AGAIN AT FL 250. DIVERTED TO LHR. *S/D* AIRCRAFT DEPARTED CDG WITH RIGHT AIR CYCLE MACHINE INOPERATIVE. AFTER DEPARTURE THE LEFT PACK FAILED AND THE AIRCRAFT DIVERSDR 96UAL900899Generator · malfunctionedDURING CLIMB, RIGHT GENERATOR OFF LIGHT ILLUMINATED. ATTEMPTED ONE RESET PER HANDBOOK, DID NOT RESET. STARTED APU AND CONTINUED.SDR 96UAL900892Asg Card · malfunctionedCREW REPORTS EICAS MESSAGE FOR WING ANTI-ICE THREE HOURS AFTER DEPARTURE. RETURNED TO IAD. *S/D* REPLACED AIRFOIL AND COWL ICE PROTECTION SYSTEM CARD, PASSED TEST. PROBLEM REOCCURRED SEVERAL FLIGHTS LATER. REPLACED POWER SUPPLY UNIT LINEAR MONITOR A3 PER SDR 96UAL900881Duct · crackedLEFT AIR CONDITIONING PACK INLET DUCT HAS HOLE 2.5 INCHES LONG BY 1 INCH WIDE. HOLE IS AT THE END OF A FOUR INCH LONG CRACK EXTENDING FROM WELDED BOSS. *S/D* FAILURE ATTRIBUTED TO FATIGUE CRACK ASSOCIATED WITH PITTING CAUSED BY ELECTRIC WELDING ARC STRIKE DSDR 96UAL900802Stator Vane · crackedFOUND NR 1 ENGINE 6TH STAGE HIGH PRESSURE COMPRESSOR VARIABLE STATOR VANE BEYOND CRACK LIMITS. ALSO, SUSPECT A CRACK AT THE TENTH VANE BELOW AP3 PORT. *S/D* REMOVED ENGINE AND REPLACED ALL HPC 6TH STAGE STATOR VANES. PROBLEM PREVIOUSLY DOCUMENTED. NEW VANSDR 96UAL900785Engine · oil lossLEFT ENGINE OIL QUANTITY TO ZERO, OIL PRESSURE TO ZERO AND ENGINE SHUTDOWN. RETURN TO FIELD.SDR 96UAL900774Frame · crackedNR 2 PYLON STRUT AFT FAIRING FRAME NR 5 INBOARD ATTACH FITTING CRACKED. *S/D* FITTING WAS ADJACENT TO PREVIOUSLY REPLACED FITTING. SUSPECT PRELOAD CONDITION INTRODUCED DURING REPLACEMENT. DAMAGED FITTING REPLACED AND SENT TO BOEING FOR ANALYSIS. REPLACEMESDR 96UAL900771Inverter · failedSMOKE REPORTED COMING FROM BEHIND THE CABIN AREA CONTROL PANEL AT DOOR 2 LEFT. DISCHARGED TWO HALON FIRE BOTTLES, SMOKE STOPPED. CIRCUIT BREAKERS PULLED AT P210 PANEL. *S/D* OPEN CIRCUIT CONDITION FOR BOTH FLUORESCENT BACKLIGHTS CAUSED TRANSFORMER (906-709SDR 96UAL900758Engine · low powerON TAKEOFF AT GRU (SAO PAULO), NR 2 ENGINE DID NOT DEVELOP FULL TAKEOFF, E.P.R. N1 WAS IN TOLERANCE. TAKEOFF WAS MADE WITH AIR CONDITIONING PACKS OFF. PRELIMINARY INFORMATION INDICATES E.P.R. TARGET FOR NR 2 ENGINE DIFFERENT FROM NR 1 ENGINE TARGET.SDR 96UAL900747Engine · failedNR 1 ENGINE LEAKING FLUID WITH APPEARANCE OF BURNED SKYDROL. LOCATION IS REVERSER COWL, LOWER AFT SECTION.SDR 96UAL900743O-Ring · failedFUEL LEAKING FROM THE RIGHT AFT MAIN BOOST PUMP ON REAR SPAR. *S/D* LEAK RESULTED FROM DAMAGED O-RING. REMOVED PUMP PER MM 28-22-05, REPLACED O-RING AND REINSTALLED PUMP, CHECKED OK AFTER INSTALLATION.SDR 96UAL900655Oil Tube · obstructedAIRCRAFT RETURNED TO DEN UNDER AMBER ALERT WITH THE LEFT ENGINE SHUT DOWN DUE TO AN OIL QUANTITY AND PRESSURE IRREGULARITY. *S/D* OIL QUANTITY WAS ZERO AND PRESSURE BELOW RED LINE AT START OF CRUISE. CAUSE WAS ATTRIBUTED TO PLASTIC SHIPPING CAP IN MAIN OIL SDR 96UAL900562Sleeve · cutAIRCRAFT LOST PRESSURIZATION. CABIN ALTITUDE WENT TO 10,000 FEET WHEN CRUISING AT 37,000 FEET. DESCENDED TO 22,000 FEET AND CABIN ALTITUDE RECOVERED TO NORMAL. AIRCRAFT DIVERTED TO GANDER, NEWFOUNDLAND. SUPPLEMENTAL DATA UPDATE: CLAMPS AND SLEEVE UPSTREASDR 96UAL900524Air Distr · fuel odorFLIGHT ATTENDANT AT DOOR 2 LEFT REPORTS FUEL SMELL AFTER LIFT OFF AND ON FINAL DESCENT, NORMAL OTHER TIMES.SDR 96UAL900498Girt Bar · out of positionDOOR 2 LEFT SLIDE UNRAVELED, DOOR ASSIST BOTTLE BLOWN. *S/D* THE SLIDE GIRT MATERIAL WAS DISLODGED FROM ITS RETAINING TRAY FORCING THE MODE SELECT HANDLE TO THE DOOR ARM POSITION UPON DOOR OPENING. INSTALLED NEW SLIDE AND CHECK FOR PROPER STOWAGE OF GIRT MASDR 96UAL900495Check Valve · galledENGINE DRIVEN PUMP ON NUMBER 2 ENGINE LEAKING HYDRAULIC FLUID AT PUMP OUTLET. *S/D* LEAK WAS AT HYDRAULIC PUMP OUTLINE LINE CHECK VALVE LOCATED IN PYLON. CHECK VALVE WAS REPLACED. DEFECTIVE VALVE SENT TO VENDOR FOR FURTHER ANALYSIS.SDR 96UAL900438Fuel Tank · leakingFUEL LEAKING FROM RIGHT MAIN TANK INTO CENTER TANK. CENTER TANK AND FUEL IMBALANCE ADVISORY. TAKEOFF FUEL WAS IN BALANCE AND NO FUEL IN CENTER TANK. FUEL MOVING AT A RATE OF 100 POUNDS EVERY 6 TO 8 MINUTES.SDR 96UAL900389Oil Pump · crackedNUMBER 2 ENGINE LOSING OIL, ENGINE NOT SHUT DOWN. *S/D* OIL LEAK AT MAIN OIL PUMP DUE TO CRACK IN HOUSING. REPLACED MAIN OIL PUMP PER B777 AMM79-21-04.SDR 96UAL900391Connector · burnedSPOILERS ADVISORY MESSAGE FAILURE OF ONE OR MORE SPOILER PAIRS. *S/D* FOUND CONNECTOR D2129J BURNED AND REPLACED CONNECTOR D2129J.SDR 96UAL900378Slide Pack · looseDOOR 1R SLIDE PACK FELL OUT AS DOOR 1R WAS OPENED. DOOR WAS IN THE DISARMED POSITION. *S/D* DOOR BEING USED FOR TRAINING WHEN SLIDE PACK FELL OFF DOOR AND LANDED ON BOTTLE. SLIDE AND BOTTLE RETURNED TO HOME SHOP FOR OVERHAUL.SDR 96UAL900359Circuit Breaker · trippedRETURNED TO BLOCKS, DUE TO A FLAP DISAGREEMENT PROBLEM. *S/D* RESET 'FLAPS ELEC MOT PWR' CIRCUIT BREAKER (C27301) AND 'SLATS ELEC MOT PWR' CIRCUIT BREAKER (C27300).
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