Pratt & Whitney PW4090

Service difficulty reports · 1,399

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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 = 'PW4090'
  ORDER BY difficulty_date DESC"

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SDR 2003UALA00215Slat · delaminatedTRAILING EDGE WEDGE, SLAT NR 9, DELAMINATED. REMOVED, REPAIRED AND REINSTALLED SLAT NR 9 WEDGE.Feb 23, 2003 · N205UA · Boeing 777222 · Leading Edge DevicesSDR 2002UALA01899Tire · failedDURING LANDING NR 9 TIRE, BURST, CAUSING DAMAGE TO THE AFT FLAP. DAMAGE AREA APPROXIMATELY 13 X 10 INCHES. HOLE IS APPROX 6 X 5.5 INCHES. SUPPLEMENTAL DATA UPDATE UPON LANDING NR 9 TIRE THREW TREAD WHICH CONTACTED AND DAMAGED THE LH INBD TE FLAP ASSEMBLY.Dec 29, 2002 · N221UA · Boeing 777222 · BrakeSDR 2002UALA01859Target · bentFORWARD CARGO DOOR LIGHT ON IN FLIGHT. SUPPLEMENTAL DATA UPDATE MAINTENANCE FOUND THE DOOR CLOSED SWITCH SENSOR TARGET BENT OUT OF RANGE FOR THE SENSOR TO SENSE THE DOOR CLOSED. MAINTENANCE REPOSITIONED THE TARGET.Dec 17, 2002 · N799UA · Boeing 777222 · Door Warning SystemSDR 2002UALA01845Flaperon · malfunctionedAIRCRAFT EXPERIENCED FISHTAILING, LASTING 30 SECONDS. SYNOPTIC INDICATED INDEPENDENT CYCLING OF LT & RT FLAPERONS NEAR FULL UP DEFLECTION. AFTER 3-4 CYCLES OPS NORMAL. AUTOPILOT ENGAGED DURING ENCOUNTER, FL380. NO FMC DIRECTED TURNS.Dec 5, 2002 · N209UA · Boeing 777222 · Aileron Control SystemSDR 2002UALA01815Carbon Seal · cokedSMOKE IN CABIN PER CREW. STRONG ODOR AND THIN SMOKE IN COCKPIT. NUMBER 1 ENGINE PRODUCING OIL SMELL IN CABIN. FOUND OIL IN THE SPINNER. CLEANED SPINNER AND DISK. RAN ENGINE AT HIGH POWER FOR 30 MINUTES. FOUND MORE OIL IN THE SPINNER. REPLACED ENGINE. ENov 23, 2002 · N221UA · Boeing 777222 · Turbine Engine Oil SystemSDR 2002UALA01699Cooling Fan · failedEQUIPMENT COOLING EICAS MESSAGE "EQP CLNG OVRID". EQUIPMENT COOLING MESSAGES HIT ON PREVIOUS FLIGHTS. PROBLEM WAS FIXED BY REPLACING THE RT EQUIPMENT COOLING SUPPLY FAN. SHOP REPORTS THAT THE FAN FAILED DUE TO DEFECTIVE BEARINGS.Nov 10, 2002 · N785UA · Boeing 777222 · Air Distribution FanSDR 2002UALA01662Control Valve · failedRT A/C PACK PROBLEM AND ASSOC. ETOPS RESTRICTION. FCVS FAILED IN THE CLOSED POSITION. THE RT PACK UPPER FLOW CONTROL VALVE (FCV) WAS DEFERRED OUT OF DEN EARLIER THAT DAY. THE RT PACK LOWER FCV FAILED DURING CLIMB OUT OF IAD. BOTH FCV WERE REPLACED IN JFK. Oct 31, 2002 · N790UA · Boeing 777222 · Cabin Cooling SystemSDR 2002UALA01498Bearing · failedLEFT ENGINE OIL FILTER DIFFERENTIAL WARNING EICAS ILLUMINATED. REPLACED ENGINE. SUBSEQUENT SHOP TEARDOWN REVEALED FAILURE OF THE NR 1 BEARING. BOTH OF THE BEARING'S INNER RACEWAY HALVES HAD MACHINED THE CAGE INNER DIAMETER 360 DEGREES.Sep 27, 2002 · N791UA · Boeing 777222 · Turbine Engine Compressor SectionSDR 2002UALA01335Wire · pinchedSEAT EMERGENCY PATH LIGHTS ON BOTH SIDES OF ZONE 3 DO NOT COME ON. THERE IS A SHORTED WIRE BETWEEN ROWS 31 AND 34. FOUND PINCHED WIRE UNDER SEAT 33F. CLEARED AND REPAIRED WIRE.Aug 22, 2002 · N220UA · Boeing 777222 · Light System WiringSDR 2002UALA01336Switch · malfunctionedNR 1 ENGINE OIL FILTER LT STATUS MESSAGE. ALSO RIGHT PACK FCV STATUS MESSAGE. REPLACED THE OIL FILTER DIFFERENTIAL PRESSURE SWITCH. THE REMOVED SWITCH WAS A PRE PW SERVICE BULLETIN PW4G-112-79-12 CONFIGURATION. MESSAGE WAS DUE TO FAILED PROX SWITCH ON LWR Aug 22, 2002 · N796UA · Boeing 777222 · Turbine Engine Oil SystemSDR 2002UALA01302Circuit Card · faultyINTERMITTENT PROBLEM WITH LEFT ENGINE FIRE DETECTION SYSTEM. THE NR 1 ENGINE OVERHEAT MESSAGE WAS A FALSE INDICATION. BOTH OF THE NR 1 ENGINE FIRE LOOPS WERE INSPECTED AND OPS CK'D WITH NO DISCREPANCIES FOUND. DUE TO LEFT CARD FAULT INDICATION FROM CMC, THEAug 12, 2002 · N793UA · Boeing 777222 · Fire DetectionSDR 2002UALA01248Filler · missingAT C-CHECK MAINTENANCE, UAL DISCOVERED 20 INCHES OF OUTBOARD END OF FILLER WAS MISSING FROM THE NR 1 SLAT SEAL. THIS FILLER WAS INSTALLED PER THE MANUFACTURER. SUPPLEMENTAL DATA UPDATE UAL SUSPECTS THAT TENSION WAS INDUCED DURING THE INSTALLATION OF THE BULJul 24, 2002 · N223UA · Boeing 777222 · Leading Edge DevicesSDR 2002UALA01180Filler · missingFILLER WAS MISSING FROM THE SPANWISE BULB SEAL ON SLAT NR 14 AND 15 INCHES OF THE OUTBOARD END OF THE FILLER WAS MISSING FROM THE NR 1 SEAL. MAJOR REPAIR ACCOMPLISHED. FILLER INSTALLED.Jun 25, 2002 · N216UA · Boeing 777222 · Leading Edge DevicesSDR 2002UALA01183Filler · missingSLATS NR 1 & 14 FILLERS WERE MISSING FROM SPANWISE BULB SEALS. MAJOR REPAIR ACCOMPLISHED. FILLERS INSTALLED.Jun 25, 2002 · N222UA · Boeing 777222 · Leading Edge DevicesSDR 2002UALA00886Skin · damagedDAMAGE TO FUSELAGE STATION 508 AND 533 AT STRINGER 39L. LONG TEAR IN SKIN, SEVERED STRINGER AND DEFORMATION OF SHEAR TIE. MAJOR REPAIR ACCOMPLISHED. DOUBLER REPAIR.May 16, 2002 · N792UA · Boeing 777222 · Fuselage Main, Plate/SkinSDR 2002UALA00895Generator · failedLEFT IDG AND BACKUP GENERATOR IS OFF OR HAS FAILED. RETURNED TO SEA. TWO EVENTS HAPPENED DURING FLIGHT. THE LEFT BACKUP GENERATOR SHEARED SHAFT MAINTENANCE MESSAGE THEN FOLLOWED BY SEVERAL LEFT INTEGRATED DRIVE GENERATOR (IDG) MAINTENANCE MESSAGES. THE LEFMay 16, 2002 · N224UA · Boeing 777222 · AC Generator-AlternatorSDR 2002UALA00858Light · missingSEAT 1B EEL LIGHT ON SEAT MISSING. REPLACED EEL LIGHT ASSY AT SEAT 1B.May 11, 2002 · N794UA · Boeing 777222 · Emergency LightingSDR 2002UALA00834Actuator · malfunctionedABORTED TAKEOFF AT ABOUT 80 KTS DUE TO GEAR CONFIGURATION RED WARNING LIGHT AND HORN COMING ON. A/C TAXIED OFF RUNWAY WITHOUT INCIDENT. ONE OF THE MAIN GEAR STEERING POWER CONTROL ACTUATORS (PCA) MAY BE SLOW TO LOCK OR IS LOCKING INTERMITTENTLY. THE PCA WASMay 7, 2002 · N796UA · Boeing 777222 · Landing Gear Steering SystemSDR 2002UALA00659Ram Air Turb · failedDURING OPERATIONAL TEST OF THE RAM AIR TURBINE DURING ROUTINE MAINTENANCE CHECK, THE RAM AIR TURBINE (RAT) FAILED TO PRODUCE THE REQUIRED VOLTAGE. FAILURE OF THE RAM AIR TURBINE GENERATOR. THE RAM AIR TURBINE ASSEMBLY, WHICH INCLUDES THE GENERATOR, WAS REPLAApr 8, 2002 · N799UA · Boeing 777222 · Hydraulic System, AuxiliarySDR 2002UALA00588Harness · chafedGOT MULTIPLE ELECTRICAL PROBLEMS IE. FLASHING LIGHTS INTERMITTENT PFD'S LOSS OF ALL 3 AUTO PILOTS, AUTO THROTTLES ETC. EMERGENCY DECLARED, DUMPED FUEL AND DIVERTED TO HNL. SUPPLEMENTAL DATA UPDATE ACFT LOST AC & DC BUS 3 WHEN THE NO. 3 INTEGRATED DRIVE GENERAMar 26, 2002 · N197UA · Boeing 747422 · AC Generator-AlternatorSDR 2002UALA00502Bellcrank · fracturedBELL CRANK FOUND FRACTURED ALONG WITH ADJACENT 113W1452-X PUSH ROD WITH ROD END FRACTURED. FOUND DAMAGED OVERWING FAIRING SPRT MLG BODY DOOR STOP STRUCTURE INSTL (49W4172-2,149W4175-1). MINOR DAMAGE (GOUGE TO INSIDE WALL OF I/B FLAP TRACK ON I/B FLAP). CLIPMar 18, 2002 · N785UA · Boeing 777222 · Trailing Edge Flap Control SystemSDR DL76L020306Blade · damagedJFK MTC FOUND SURGE MESSAGE ON EICAS. MTC THEN BORESCOPED ENGINE FOUND COMPRESSOR BLADE DAMAGE. REPLACED RT ENGINE PER TRANSMITTAL 1T149.Mar 12, 2002 · N173DN · Boeing 767332 · Turbine Engine Compressor SectionSDR 2002UALA00403Skin · crackedLT FUSELAGE SKIN AT LOWER END OF HORIZ STAB BOX CUTOUT, BS 2268, SEAL FAIRING SKIN IS CRACKED. MAJOR REPAIR ACCOMPLISHED.Mar 9, 2002 · N798UA · Boeing 777222 · Fuselage Main, Plate/SkinSDR 2002UALA00404Skin · crackedRT FUSELAGE SKIN AT LOWER FWD END OF HORIZ STAB BOX CUTOUT, BS 2268, SEAL FAIRING SKIN IS CRACKED. MAJOR REPAIR ACCOMPLISHED.Mar 9, 2002 · N798UA · Boeing 777222 · Fuselage Main, Plate/SkinSDR DL76L020245Cooler · defectiveON CLIMB REPORTED ENG OIL TEMP HIGH. CONFIRMED NOT A INDICATION PROBLEM. MTC IN WORK. OIL FILTER/CHIP DETECTOR CLEAN. NO EEC FAULTS. T/S PER FIM NO FAULTS. REPLACED AIR/OIL COOLER AND VALVE. ALSO REPLACED FUEL/OIL COOLER BY PASS VALVE.Mar 1, 2002 · N181DN · Boeing 767332 · Engine Oil CoolerSDR 2002UALA00297Skin · crackedLEFT HAND FUSELAGE SKIN CRACKED STATION 2276 (FWD OF HORIZ STAB FAIRING TRACK). MAJOR REPAIR ACCOMPLISHED. REPAIRED AND EDDY CURRENT ACCOMPLISHED.Feb 21, 2002 · N797UA · Boeing 777222 · Fuselage Main, Plate/SkinSDR 2002UALA00294Floorbeam · crackedSTATION 246 FLOORBEAM MID CHORD IS CRACKED IN CUTOUT RADIUS OF UPPER VERTICAL LEG AT LBL 38.5. MAJOR REPAIR ACCOMPLISHED. MANUFACTURED AND INSTALLED ANGLE REPAIR.Feb 20, 2002 · N205UA · Boeing 777222 · Fuselage Main, Floor BeamSDR 2002UALA00230Skin · dentedBULK CARGO DOOR SKIN FORWARD EDGE AREA HAS DENT. SUPPLEMENTAL DATA UPDATE MAJOR REPAIR ACCOMPLISHED. CUT OUT DAMAGE AND INSTALLED DOUBLER.Feb 4, 2002 · N784UA · Boeing 777222 · Cargo/Baggage DoorsSDR 2002UALA00181Bearing · wornAIRCRAFT EXPERIENCED A LOSS IN OIL QUANTITY IN THE RT ENGINE. DIVERTED TO YUL. OIL QUANTITY AT TOP OF DESCENT WAS ZERO WITH NORMAL TEMP/PRESSURE. ARRIVED WITH NO PROBLEMS. "ENG OIL FILTER R" BYPASS MESSAGE DISPLAYED AT TOP OF DESCENT; ENGINE CONTINUED TO OPJan 29, 2002 · N794UA · Boeing 777222 · Turbine Engine Compressor SectionSDR 2002UALA00095Light · damagedEXIT PATH LIGHTING 6B ON SIDE OF SEAT IS TORN OFF. REPLACED 2 LIGHT ASSEMBLY'S.Jan 11, 2002 · N197UA · Boeing 747422 · Emergency LightingSDR 2002UALA00052Shear Tie · crackedSTA 298.5 LT SHEAR TIE CRACKED AT STRINGER 28-29.Jan 8, 2002 · N796UA · Boeing 777222 · Fuselage Main, StructureSDR 2002UALA00049Frame · crackedSTA 298.5 LT FRAME OUTER CHORD AT STRINGER 28-30 WAS REPAIRED PER EVA G95-7785A. INTERIM MAJOR REPAIR ACCOMPLISHED. DAMAGE WAS CUT OUT AND REPAIRED.Jan 8, 2002 · N796UA · Boeing 777222 · Fuselage Main, FrameSDR 2002UALA00024Skin · dentedEXTERNAL SKIN DENTED BETWEEN STA 292 TO 298 AT STRINGER 29L. MAJOR REPAIR ACCOMPLISHED. DENT REMOVED AND DOUBLER INSTALLED. DENT WAS CUT OUT AND REPAIRED.Jan 4, 2002 · N796UA · Boeing 777222 · Fuselage Main, Plate/SkinSDR 2001UALA02477Light · inoperativeEMERGENCY PROX LIGHT AT SEAT 42D IS INOP. BULB IN FLOOR PROXIMITY LIGHT ASSY FAILED. REPLACED FLOOR PROXIMITY LIGHT ASSY.Dec 29, 2001 · N785UA · Boeing 777222 · Emergency LightingSDR 2001UALA02405Floorbeam · crackedTHE BODY STATION 246 FLOORBEAM MID CHORD IS CRACKED AT LBL7.88, RBL26.06 AND RBL 38.00. MAJOR REPAIR ACCOMPLISHED. A NEW ANGLE SECTION WAS SPLICED PER SRM 53-10-51-201 REPAIR 2.Dec 12, 2001 · N783UA · Boeing 777222 · Fuselage Main, Floor BeamSDR 2001UALA02394Computer · malfunctionedACFT RETURNED TO STAND WITH RIGHT ENGINE BLEED PROBLEM. NO STATUS MESSAGE. CONFIRMED RIGHT ENGINE PRSOV NOT OPERATING CORRECTLY. FOUND IOM 004 MODULE IN THE RIGHT AIMS SHOWING HARD FAULT. RESET AIMS MODULE AND SWAPPED RIGHT AIMS IOM 009 WITH RIGHT AIMS IOMDec 8, 2001 · N786UA · Boeing 777222 · Central ComputersSDR 2001UALA02323Control Panel · failed150NM FROM SFO TO ELEC SMELL AND A LITTLE SMOKE IN THE COCKPIT. MODE CONTROL PNL AND AUTO THROTTLE KICKED OFF AND CB POPPED. SMOKE AND SMELL RAPIDLY DISSIPATED. FLT RETURNED TO SFO. MODE CONTROL PANEL P/N 822-0195-102 REPLACED. PRELIMINARY FINDINGS BY COMNov 23, 2001 · N206UA · Boeing 777222 · Autopilot SystemSDR 2001UALA02130Shield · damagedAFTER TAKEOFF AND ABOUT 4000 FT, THE FUEL FILTER BLOCKAGE EICAS MSG CAME ON ASSOCIATED WITH LEFT ENGINE. CREW DECLARED AN EMERGENCY AND RETURNED TO IAD. LANDED WITHOUT INCIDENT. THIS ENG HAS EXPERIENCED 2 INSTANCES OF FUEL FILTER STATUS MSG. THE FUEL FILTEROct 14, 2001 · N207UA · Boeing 777222 · Engine Fuel System WiringSDR DL76P011469Chip Detector · leakingON CLIMB HAD LOSS OF OIL QTY NR 1 ENG OIL PRESS TO 60 PSI SHUT DOWN ENG. NR 3 BEARING COMP CHIP DETECTOR LEAKING. REPLACED CHIP DET AND HOUSING. PERFORMED WINDMILL INSP PER M/M, REPLD OIL FILTER. LEAK CHECKS GOOD, NO FURTHER DEFECTS NOTED, OK FOR SERVICE.Sep 3, 2001 · N143DA · Boeing 767332 · Engine Oil Indicating SystemSDR 2001UALA01924Pcu · leakingACFT RETURNED TO FIELD DUE TO HYDRAULIC LEAK. FOUND NR 6 SPOILER, LEFT WING SECOND SPOILER FROM FUSELAGE LEAKING. THIS IS PART OF THE RIGHT HYDRAULIC SYSTEM JUST INBOARD OF LEFT PYLON. PANEL 552FB REMOVED AND HARDWARE IS BAGGED. MAINT REPLACED LEAKING NR 6 Aug 28, 2001 · N798UA · Boeing 777222 · Drag Control SystemSDR 2001UALA01632Door · damagedEN ROUTE FROM FRA TO DEN AIRCRAFT DIVERTED TO LHR DUE TO VIBRATION ON THE RIGHT SIDE OF THE AIRPLANE. FOUND RT RAM AIR INLET DOOR FAILED RESULTING IN VIBRATION AND DAMAGE TO RAM AIR INLET DUCT. DOOR ASSY WAS REPLACED AND INLET DUCT WAS REPAIRED. A/C RETURNEDAug 5, 2001 · N205UA · Boeing 777222 · Cabin Cooling SystemSDR 2001UALA01599Tube · crackedUNSCHEDULED ENGINE REMOVAL DUE TO CRACK IN NR 3 BEARING OIL PRESSURE TUBE FOUND DURING INSPECTION. PRATT & WHITNEY RECALLED CERTAIN P/N 50J041-01 OIL TUBES DUE TO POTENTIAL CRACKING AT CONTAMINATED WELD BEAD, AND NOTIFIED US OF THE POSSIBILITY THAT NR 3 BEARAug 2, 2001 · N221UA · Boeing 777222 · Turbine Engine Oil SystemSDR 2001UALA01607Skin · damagedDAMAGE FOUND ON LT ELEVATOR UPPER SURFACE, APPROX 18 INCHES OUTBOARD OF INBOARD EDGE AND 18 INCHES FWD OF T/E PUNCTURE IS APPROX 1.75 INCHES IN DIAMETER AND 1.25 INCHES DEEP. *S/D* MAJOR REPAIR: ACP REPAIR ON LT ELEVATOR PER SRM.Aug 2, 2001 · N217UA · Boeing 777222 · Elevator, Plate/SkinSDR 2001UALA01352Warning System · malfunctionedLOW OIL PRESSURE WARNING INTERMITTENTLY COMING INTO VIEW WITH OIL PRESSURE SHOWING 211 PSI (NORMAL), ALSO WHEN OIL PRESSURE WARNING OCCURRED N1, EPR AND FF FLUCTUATING OCCURRED. AT FL390 M.84V 4 HRS AIRBORNE EICAS MSG ENG OIL PRESS L CAUTION APPEARED OIL PRESJul 11, 2001 · N783UA · Boeing 777222 · Engine Oil PressureSDR 2001UALA00752Carbon Seal · leakingACRID-ONLY SMOKE SMELL IN COCKPIT AND CABIN NO SMOKE VISIBLE. OUT OF FL204 IN DESCENT BETTER BY 104. *S/D* REPLACED NR 1 ENGINE. SHOP INVESTIGATION REVEALED NO VISIBLE OIL IN THE ENGINE GAS PATH OR PNEUMATIC DUCTS AND NO EXTERNAL OIL LEAKS. NO OIL IN FAN May 16, 2001 · N793UA · Boeing 777222 · Turbine Engine Compressor SectionSDR 2001UALA00651Sense Line · fracturedRIGHT ENGINE DID NOT SPOOL UP TO FULL TAKEOFF POWER, LAG 1.5 KNOTS BEHIND LEFT THROTTLE. ABORTED TAKEOFF AT LOW SPEEDS. *S/D* FOUND PROBLEM WITH LEFT ENGINE PT 4.95 LINE RIGHT ENGINE OPS NORMAL. FOUND LINE BROKEN ON LEFT ENGINE. PER 1-0-13-3 INTRIM REPAIRMay 5, 2001 · N791UA · Boeing 777222 · Engine Pressure Ratio (EPR)SDR 2001UALA00598Acm · seizedSFO-FRA, APPROXIMATELY 1.5 HOURS AFTER DEPARTURE, EXPERIENCED AIR FLOW PROBLEMS WITH RIGHT PACK. DUMPED FUEL AND RETURNED TO SFO. *S/D* RT PACK ACM WAS FOUND SEIZED AND WAS REPLACED. AIRCRAFT RETURNED TO REVENUE SERVICE WITH NO FURTHER INCIDENT.Apr 28, 2001 · N790UA · Boeing 777222 · Cabin Cooling SystemSDR 2001UALA00594Eec · out of toleranceON T/O, WHEN ENGAGING AT UPON THRUST APPLICATION, LT ENG LAGGED BEHIND RT, ADDED THROTTLE MANUALLY, EVENTUALLY ALL THE WAY TO STOP EPR WAS PEGGED 1.395 (1.444=REDUCED TO) WITH RT ENG. AT 1.44. ENGS NORMAL OPS AT SETTING OF CLIMB. REPLACED ELECTRONIC ENGINE CApr 26, 2001 · N786UA · Boeing 777222 · Fuel Control/Turbine EnginesSDR 2001UALA00595Eec · inadequateTAKEOFF AT ORD LT ENG EPR 1.51 RIGHT ENG 1.48 EPR. RT THROTTLE SLIGHTLY AHEAD OF LT THROTTLE. AFTER THRUST REDUCTION, EVERYTHING MATCHED UP AND THROTTLES MARRIED UP. *S/D* PRELIM STATUS 5/4/2001: INSP ENG & ACCOMP POWER ASSURANCE RUN, NO DISCREP FOUND. PApr 23, 2001 · N207UA · Boeing 777222 · Fuel Control/Turbine EnginesSDR 2001UALA00544Clamp · brokenEICAS BLEED LOSS WING RIGHT INDICATION, FOLLOWED BY RIGHT ISOLATION VALVE CLOSURE, THEN FINALLY THE LOSS OF THE RIGHT AIR CONDITIONING PACK LEAD TO FLIGHT DIVERTING TO MIA. *S/D* FOUND FWD BAND CLAMP FAILED AT LWR RT FLOW CONTROL VLV. THIS CAUSED AIR LEAK, Apr 18, 2001 · N798UA · Boeing 777222 · Air Distribution System
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