Pratt & Whitney PW4077

Service difficulty reports · 3,169

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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 = '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.

SDR 99UAL900145Solenoid · wornFLIGHT CREW REPORTED, NR 2 ENGINE SURGED AT TOP OF DESCENT. *S/D* ENGINE SURGED AND RECOVERED. FLIGHT RECORDER DATA INDICATED DELAYED OPENING OF 2.9 STABILITY BLEED VALVE. REPLACED 2.9 BLEED SOLENOID (P/N: 04P23-8), PNEUMATIC RELAY VALVE AND 2.9 STABILITY Mar 2, 1999 · N768UA · Boeing 777222 · Pneumatic Distribution SystemSDR 99UAL900206Stiffener · damagedVERTICAL STIFFENERS AT STA 246 FLOORBEAM BUCKLED AND/OR CRACKED IN BEND RADIUS. LOCATIONS WERE AT RBL 50.0 (P/N 144W8518-69), RBL 44.95 (P/N 141W8518-69), RBL 38.0 (P/N 141W8518-87), RBL 26.06 (P/N 141W8518-72), RBL 7.88 (P/N 141W8518-73), LBL 7.88 (P/N 141W8Feb 25, 1999 · N766UA · Boeing 777222 · Fuselage Miscellaneous StructureSDR 99UAL900092Actuator · failedAPU WOULD NOT START IN THE AIR. *S/D* APU INLET DOOR ACTUATOR (R5365-1) FAILED. ACTUATOR WAS REMOVED AND REPLACED FEB 9,1999 AT IAD. OPS CHK OK. VENDOR ANALYSIS OF REMOVED UNIT INDICATED UNIT WAS COMPLETELY SEIZED. WATER WAS FOUND IN UNIT WHICH RESULTED IFeb 7, 1999 · N771UA · Boeing 777222 · APU Bleed Air SystemSDR 99UAL900080Tube · tornDURING FLAT FIRING OF DOOR 1L SLIDE RAFT (P/N 62771-105) (S/N 0103) AT SHOP OVERHAUL, SLIDE FAILED TO RETAIN PRESSURE. FOUND SERIES OF SCUFFED AREAS RESULTING IN FOUR TEARS (HALF-INCH LENGTH) ON THE BOTTOM OF THE SLIDE RUNWAY SUPPORT LOG (CROSS TUBE). SLIDE PFeb 3, 1999 · N770UA · Boeing 777222 · Life RaftSDR 99UAL900076Solenoid · stickingNR 2 ENGINE EXPERIENCED COMPRESSOR STALL SEVERAL TIMES DURING DESCENT FROM FLIGHT LEVEL 40.5 TO 24.0. *S/D* SURGES, WHICH WERE RECOVERABLE, WERE ATTRIBUTED TO THE 2.9 STABILITY BLEED VALVE NOT OPENING WHEN COMMANDED. REPLACED 2.9 BLEED CONTROL SOLENOID (P/NFeb 2, 1999 · N776UA · Boeing 777222 · Compressor Bleed ValveSDR 99UAL900091Valve · malfunctionedUNABLE TO MOVE FUEL FROM LEFT TANK TO RIGHT. TRIED TO MANUALLY CLOSE LEFT FILL VALVES, NO HELP.Feb 1, 1999 · N768UA · Boeing 777222 · Fuel Transfer ValveSDR 99UAL900050Door · damagedVIBRATION FELT IN AIRFRAME CLIMBING TO 18,000 FT. VIBRATION DECREASED WHEN NR 2 THROTTLE BROUGHT TO FLIGHT IDLE. ALSO, DECREASED WHEN RIGHT AIR CONDITIONING PACK TURNED OFF. RESIDUAL VIBRATION REMAINED. AIRCRAFT RETURNED TO CDG. *S/D* FOUND RT PACK RAM AJan 21, 1999 · N778UA · Boeing 777222 · Cabin Cooling SystemSDR 98UAL900605Servo · failedDURING CLIMB-OUT AFTER TAKEOFF, RIGHT ENGINE OIL EICAS MESSAGE, AND OIL TEMP RED-LINE. ENGINE WAS REMOVED DUE TO OIL OVERTEMP AND FUEL IN OIL. SERVO FUEL HEATER (P/N 51R418) WAS FOUND FAILED.Dec 11, 1998 · N778UA · Boeing 777222 · Fuel HeaterSDR 98UAL900537Windshield · failedEN ROUTE FRA TO ORD, OBSERVED LARGE CRACK IN CAPTAIN'S WINDSHIELD INNER PANE. FLIGHT DIVERTED TO LHR. WINDSHIELD (P/N 141W7400-2) AND OTHERS HAVE BEEN REMOVED AND ANALYSED AT THE VENDOR (PPG) FOR DEFECTS. SO FAR, EARLY INDICATIONS SEEMS TO LEAD TO THE EPOXYNov 19, 1998 · N777UA · Boeing 777222 · Flight Compartment WindowsSDR 98UAL900543Starter · malfunctionedAPU WILL NOT START IN EITHER ELECTRICAL OR PNEUMATIC START MODE. *S/D* REMOVED AND REPLACED APU BATTERY CHARGER. PROBLEM PERSISTED. FOUND APU STARTER DAMAGED. REPLACED ELECTRIC STARTER (P/N 2704442-4) AND CLUTCH ASSEMBLY. OPERATIONALLY CHECKED NORMAL. SUSNov 14, 1998 · N772UA · Boeing 777222 · APU Start/Ignition SystemSDR 98UAL900527Valve · leakingDURING ROUTINE SHOP OVERHAUL OF A SLIDE/RAFT, THE TOP TUBE PRESSURE TEST VALVE BODY (P/N 831A0S), WAS FOUND TO BE LEAKING AT THE BASE OF THE VALVE BODY.Nov 5, 1998 · N768UA · Boeing 777222 · Escape SlideSDR 98UAL900495Outflow Valve · failedAFTER DEPARTURE, AIRCRAFT WOULD NOT PRESSURIZE. AIRCRAFT RETURNED TO FIELD. *S/D* AIRCRAFT WAS OPERATING WITH AFT OUTFLOW VALVE AT SEVEN PERCENT OPEN POSITION PER THE MEL DUE TO FAULTY LEFT HAND DC MOTOR. SUSPECT WHILE ACCOMPLISHING FORWARD OUTFLOW VALVE MOct 9, 1998 · N777UA · Boeing 777222 · Pressure Regulator/Outflow ValveSDR 98UAL900490Window · crackedEN ROUTE SFO-DEN, CAPTAIN ADVISED DISPATCH OF ELECTRICAL SMELL AND LIGHT SMOKE COMING FROM LOWER LEFT HEATING UNIT ON WINDOW R3. SUSPECT INNER GLASS PANE CRACKED/SHATTERED DUE FROM ARCING. WINDOW (141T4004-22) RETURNED TO VENDOR FOR EVALUATION.Oct 4, 1998 · N774UA · Boeing 777222 · Flight Compartment WindowsSDR 98UAL900449Torque Tube · shearedAPPROXIMATELY 30 MINUTES AFTER TAKEOFF, FLIGHT EXPERIENCED A LOUD NOISE AND VIBRATION. AIRCRAFT RETURNED TO MIA. *S/D* FOUND LEFT PACK RAM AIR DOOR TORQUE TUBE ASSEMBLY (213W3130-3) SHAFT SHEARED. REPLACED TORQUE TUBE ASSEMBLY.Sep 5, 1998 · N770UA · Boeing 777222 · Cabin Cooling SystemSDR 98UAL900448Torque Tube · shearedMODERATE VIBRATIONS AT DOOR 2 RIGHT FROM FLOOR. AIRCRAFT RETURNED TO DEN. *S/D* FOUND RIGHT PACK RAM AIR DOOR TORQUE TUBE ASSEMBLY (213W3130-4) SHAFT SHEARED. REPLACED TORQUE TUBE ASSEMBLY.Sep 2, 1998 · N770UA · Boeing 777222 · Cabin Cooling SystemSDR 98UAL900399Warning · activatedCABIN ALTITUDE WARNING. CABIN CLIMBED TO 10,000 FEET. FLIGHT RETURNED TO LAX.Aug 20, 1998 · N766UA · Boeing 777222 · Cabin Pressure Control SystemSDR 98UAL900398Pin · failedUNABLE TO OBTAIN CLIMB THRUST ON NR 1 ENGINE. FLIGHT RETURNED TO ORD. NR 1 ENGINE OVERTEMP ON CLIMB POWER AT 1.15 EPR AND 620 DEGREES (C). RIGHT ENGINE WAS 1.23 EPR AT 590 DEGREES (C). REPLACED NR 1 ENGINE. CAUSE WAS ATTRIBUTED TO BROKEN 2.5 BLEED BELLCRAAug 19, 1998 · N780UA · Boeing 777222 · Compressor Bleed ValveSDR 98UAL900425Tube · tornDURING FLAT FIRING OF SLIDE RAFT (P/N 62772-202) (S/N 0021) IN CONJUNCTION WITH SHOP OVERHAUL VISIT, A ONE INCH TEAR DEVELOPED IN THE LOWER TUBE UNDER THE GIRT. UNIT SENT TO VENDOR FOR REPAIR AND EVALUATION. *S/D* AFTER REVIEW BY VENDOR, CAUSE OF FAILURE COAug 5, 1998 · N772UA · Boeing 777222 · Life RaftSDR 98UAL900339Torque Tube · shearedLOUD VIBRATION ON CLIMBOUT. RETURNED TO LHR. PRELIMINARY INVESTIGATION AT LHR FOUND DAMAGED LEFT PACK RAM DOOR. *S/D* FOUND LT PACK RAM AIR INLET DOOR TORQUE TUBE ASSY (213W3130-3) SHAFT SHEARED. REPLACED TORQUE TUBE ASSY.Jul 20, 1998 · N774UA · Boeing 777222 · Cabin Cooling SystemSDR 98UAL900356Compressor · fodCREW REPORTED AT TOP OF DESCENT WHEN THROTTLES RETARDED, SMOKE FILLED CABIN AND COCKPIT. TURNED OFF NR 1 BLEED AND PACK. SMOKE CLEARED. ENGINE VIBRATION ALSO REPORTED. ENGINE REPLACED AT IAD FOR OIL IN THE GAS PATH. ON ENGINE DISASSEMBLY A FOREIGN OBJECT Jul 12, 1998 · N774UA · Boeing 777222 · Turbine Engine Compressor SectionSDR 98UAL900309Pin · failedCREW REPORTS THAT NR 1 ENGINE EXHAUST GAS TEMPERATURE (EGT) IS 35 DEGREES HIGHER THAN NR 2 ENGINE EGT AND CLIMBING. FUEL FLOW ON NR 1 IS 800 PPH GREATER THAT NR 2. RETURNED TO MIA. ENGINE REPLACED AT MIA. FOUND 2.5 BLEED VALVE BELLCRANK PIVOT PIN FAILED. Jul 4, 1998 · N774UA · Boeing 777222 · Compressor Bleed ValveSDR 98UAL900277Window · crackedAPPROXIMATELY ONE HOUR AFTER DEPARTURE, FLIGHT EXPERIENCED PROBLEM WITH RIGHT FORWARD WINDOW ARCING AND CRACKED. FLIGHT RETURNED TO ORD LANDING OVERWEIGHT. PRELIMINARY FINDINGS INDICATES DELAMINATION OF THE ANTI FOG LAYER CAUSING ARCING FROM THE BUS BAR, ANDJun 19, 1998 · N771UA · Boeing 777222 · Flight Compartment WindowsSDR 98UAL900283Arm · crackedRIGHT INBOARD NR 8 LEADING EDGE SLAT CENTER PAIR OUTBOARD ARM (114W2804-8) CRACKED AT UPPER FLANGE NEAR AFT END ROLLERS. REPLACED ARM (114W2804-8).Jun 15, 1998 · N772UA · Boeing 777222 · Leading Edge DevicesSDR 98UAL900231Power Supply · overheatedCREW REPORTS ELECTRICAL BURNING SMELL IN AFT GALLEY ON DESCENT. *S/D* THE SMELL RESULTED FROM OVERHEATING OF POWER SUPPLY COMPONENTS IN THE CABIN AREA CONTROL PANEL. UNDER CONDITIONS WHERE BOTH BACK LIGHTS FAIL, THE POWER SUPPLY MAY OVERHEAT. BOEING SERVICJun 2, 1998 · N773UA · Boeing 777222 · Buffet/GalleysSDR 98ZZZX2022Bearing · failedENGINE REMOVED ON 5-6-98 DUE IN-FLIGHT SHUT DOWN FOLLOWING OIL FILTER BYPASS LIGHT AND LOW OIL PRESSURE LIGHT. DISASSEMBLY INSPECTION REVEALED FAILED NR 1 MAIN BEARING WITH HEAVY SPALLING AND 360 DEGREE CAGE SEPARATION. THE BEARING HAS BEEN TURNED OVER TO PRMay 13, 1998 · N767UA · Boeing 777222 · Turbine Engine Compressor SectionSDR 98UAL900180Eicas · activatedFLIGHT RETURN TO IAD, DO TO SPOILER EICAS (ENGINE INDICATION AND ALERT SYSTEM) MESSAGES.May 7, 1998 · N777UA · Boeing 777222 · Central WarningSDR 98UAL900178Bearing · stalledEICAS (ENGINE INDICATION AND CREW ALERT SYSTEM) MESSAGE ENG OIL FILTER R DISPLAYED IN FLIGHT AT 1700Z. AT 1920Z OIL PRESSURE STARTED DOWNWARD STEADILY UNTIL LOW PRESSURE LIGHT ILLUMINATED, SHUT DOWN ENGINE. FOUND METAL ON ALL MAGNETIC CHIP DETECTORS AND OIL May 6, 1998 · N767UA · Boeing 777222 · Turbine Engine Compressor SectionSDR 98UAL900170Bulb · failedREADING LIGHTS AT 28AB WOULD NOT TURN OFF, SMOKE EMITTED FROM PASSENGER SERVICE UNIT PANEL. POWER TURNED OFF FROM CACP. *S/D* BOTH LAMPS WERE REMOVED AND REPLACED. AREA WAS INSPECTED FOR SIGNS OF OVERHEAT OR BURNING, NONE FOUND. ALL OPERATIONS RETURNED TOApr 29, 1998 · N774UA · Boeing 777222 · Passenger Compartment LightingSDR 98UAL900149Tube · tornDURING SHOP OVERHAUL, THE SLIDE/RAFT DEVELOPED A TWO INCH TEAR IN THE LOWER TUBE UNDER THE GIRT AFTER THE FLAT FIRE TEST. SLIDE/RAFT SENT TO VENDOR FOR WARRANTY REPAIR.Apr 14, 1998 · N770UA · Boeing 777222 · Escape SlideSDR 98UAL900145Heat Exchanger · failedL BLEED PRSOV SHOWS CLOSED ON AIR SUPPLY MAIN T, BLEED LOSS WING L, BODY L, BLEED LEAK L STATUS MSG'S AND L PACK INOP. CREW HEARD POP JUST BEFORE MESSAGES APPEARED. RETURNED TO IAD AND LANDED OVERWEIGHT. *S/D* FOUND LT HEAT EXCHANGER TORN OPEN AT PRIMARY INApr 1, 1998 · N766UA · Boeing 777222 · Pneumatic Distribution SystemSDR 98UAL900146Floor · corrodedFOUND MID GALLEY FLOOR PANELS (REF IPC 25-31-01-075) WHICH HAD HEAVY CORROSION ON THE AFT EDGE OF THE FORWARD PANEL AND THE FORWARD EDGE OF THE REAR PANEL. THERE WAS NO SEALANT BETWEEN THE THRESHOLD PLATE AND THE GALLEY FLOOR PAN. THIS CONDITION ALLOWED MOISMar 17, 1998 · N777UA · Boeing 777222 · Fuselage Floor PanelSDR 98UAL900113Warning Light · activatedCREW ABORTED TAKEOFF DUE TO FORWARD CARGO DOOR WARNING LIGHT CAME ON. ABORTED TAKEOFF AT 90 KNOTS.Mar 11, 1998 · N770UA · Boeing 777222 · Door Warning SystemSDR 98UAL900103Bleed Air · inoperativeFLIGHT RETURNED TO IAD DUE TO AFTER TAKEOFF, RIGHT ENGINE BLEED INOPERATIVE.Mar 5, 1998 · N770UA · Boeing 777222 · Pneumatic Distribution SystemSDR DLL17980309Fire Loop · contaminatedNR 2 ENG SHUT DOWN DUE TO ENG FIRE INDICATION. BOTH FIRE BOTTLES FIRED. FOUND BAD CONNECTORS ON THE GEAR CASE B-FIRE LOOP AND CONTAMINATED CONNECTOR ON A LOOP.Feb 4, 1998 · N769DL · Lkheed 10113853 · Fire DetectionSDR 98UAL900001Out Flow Valve · failedAIRCRAFT RETURNED TO MIA, UNABLE TO PRESSURIZE CABIN AND LANDED OVERWEIGHT. *S/D* AFT OUTFLOW VALVE REPLACED TWO DAYS LATER. THERE WAS NO FURTHER PRESSURIZATION PROBLEMS.Jan 3, 1998 · N778UA · Boeing 777222 · Pressure Regulator/Outflow ValveSDR 97UAL900889Torque Tube · shearedPRONOUNCED VIBRATION AT FL290 AND 313 KNOTS. VIBRATION DISAPPEARED BELOW FL280 AND 280 KNOTS. FLIGHT RETURNED TO DEN UNDER AMBER ALERT. *S/D* FOUND LEFT PACK RAM AIR INLET DOOR TORQUE TUBE (213W3130-3) SHAFT SHEARED. REPLACED TORQUE TUBE ASSEMBLY.Dec 22, 1997 · N766UA · Boeing 777222 · Cabin Cooling SystemSDR 97UAL900865Transformer · burnedDURING INSPECTION AFTER MAINTENANCE, SMOKE/ODOR NOTICED IN AFT CABIN AREA. NOTICED SMOKE IN CEILING AREA AND REMOVED POWER FROM AIRCRAFT. DURING INVESTIGATION WITH POWER ON AIRCRAFT, FIRE OBSERVED IN OVERHEAD ELECTRONIC UNIT. FIRE EXTINGUISHED WITH HALON EXDec 10, 1997 · N775UA · Boeing 777222 · Entertainment SystemSDR 97UAL900880Support · brokenON WALKAROUND, FOUND FAIRING SUPPORT ROD BRACKET (115W2266-5) FOR RIGHT HAND TRAILING EDGE ASSEMBLY LOWER INBOARD FIXED FAIRING BROKEN. THE SUPPORT BEAM (115W2214-2) WAS ALSO DAMAGED. *S/D* ACCOMPLISHED INTERIM REPAIR UNTIL REPLACEMENT PARTS AVAILABLE FROM Dec 8, 1997 · N769UA · Boeing 777222 · Wing Miscellaneous StructureSDR 97UAL900835Detector · malfunctionedEN ROUTE FL390, AFT CARGO COMPARTMENT FIRE INDICATION. ACCOMPLISHED EMERGENCY PROCEDURES. DIVERTED TO CCS. *S/D* INVESTIGATION REVEALED NO EVIDENCE OF FIRE OR SMOKE. REPLACED FIRE EXTINGUISHING BOTTLES, REGULATOR, AND FLOW VALVES. ACCOMPLISHED SYSTEM TESNov 18, 1997 · N777UA · Boeing 777222 · Fire DetectionSDR 97UAL900790Comp Blade · fracturedRIGHT ENGINE EXPERIENCED COMPRESSOR STALL ON TAKEOFF ROLL AND OVERTEMP CONDITION. AIRCRAFT RETURN TO BLOCKS SUPPLEMENTAL DATA UPDATE ONE EACH 5TH STAGE COMPRESSOR BLADE FRACTURED ONE INCH ABOVE THE PLATFORM. ANALYSIS INDICATED A 0.020 INCH SHARP OBJECT IMPACOct 23, 1997 · N770UA · Boeing 777222 · Turbine Engine Compressor SectionSDR 98ZZZX1072Bearing · failedLOW OIL PRESSURE MESSAGE APPEARED AFTER LANDING IN BEIJING. GROUND INSPECTION FOUND METAL IN FILTER AND CHIP DETECTORS. DISASSEMBLY INSPECTION FOUND NR 3 MAIN BEARING FAILURE. BEARING ROUTED TO PRATT & WHITNEY ENGINEERING FOR INVESTIGATION. CUSTOMER: ALL Oct 20, 1997 · Boeing 777222 · Turbine Engine Compressor SectionSDR 97UAL900627Bellcrank Pin · failedRIGHT ENGINE OVER TEMPERATURE DURING REDUCED POWER TAKEOFF. AT LEVEL OFF, TRIED TO BRING POWER BACK BUT TEMPERATURE WOULD RISE AGAIN. *S/D* REPLACED NR 2 ENGINE. FOUND 2.5 BLEED VALVE BELLCRANK (P/N 51D125) WITH PIVOT PIN BROKEN (51D271). ENGINE SENT TO PAug 17, 1997 · N769UA · Boeing 777222 · Compressor Bleed ValveSDR 97UAL900561Auto Pilot · malfunctionedWITH A/P ENGAGED AND SPEED BRAKE EXTENDED TO FULL UP POS. ON DESCENT PLANE TRIED TO NOSE DIVE UP TO 10 DEG NOSE DOWN. DESCENT RATE WENT TO 5880 FPM. DISENGAGED A/P WORKED FINE. TRIED A 2ND TIME WITH A/P ENGAGED SAME PROBLEM. WITH A/P DISENGAGED USED SPEED BJul 20, 1997 · N772UA · Boeing 777222 · Autopilot SystemSDR 97UAL900551Main Battery · heat damageSTATUS MESSAGE, MAIN BATTERY OVERHEAT. AIRCRAFT DIVERTED TO EWR. *S/D* MAIN BATTERY (P/N 263BS101-1) OVERHEATED. BATTERY WAS REPLACED.Jul 15, 1997 · N773UA · Boeing 777222 · Battery/Charger SystemSDR 97UAL900550Prox Switch · stickingCREW REPORTS, LOUD AIR NOISE IN RIGHT SIDE OF CABIN ROW 15. AIR SYNOPTIC SHOWS RIGHT PACK WITH NO FLOW. RIGHT DUCT PRESSURE NORMAL. AIRCRAFT RETURN TO ORD (ORD-LHR). *S/D* SUSPECT NO FLOW INDICATION ON SYNOPTIC PAGE RESULT OF STICKING FLOW CONTROL VALVE (Jul 10, 1997 · N774UA · Boeing 777222 · Cabin Cooling SystemSDR 97UAL900503P2/T2 Probe · blockedLEFT ENGINE TAKEOFF THRUST TOO LOW. N1, N2 AND FUEL FLOW NORMAL FOR OBSERVED EPR (ENGINE PRESSURE RATIO). *S/D* MAINTENANCE REPLACED THE NR 1 ENGINE P2/T2 PROBE ACCOUNT INSECT LODGED IN TEMPERATURE SENSOR AIR PASSAGE.Jun 30, 1997 · N780UA · Boeing 777222 · Fuel Controlling SystemSDR 97UAL900479Hose · leakingON ARRIVAL, FOUND OIL LEAKING FROM NR 2 ENGINE. RIGHT SIDE OF ENGINE COATED WITH HYDRAULIC FLUID. *S/D* ENGINE DRIVEN HYRAULIC PUMP FEEDLINE (AE709310-1) WAS FOUND TO BE LEAKING. LINE WAS REPLACED. HOSE WAS NOT RECOVERED FOR ANALYSIS.Jun 18, 1997 · N775UA · Boeing 777222 · Hydraulic System, MainSDR 97UAL900414Connector · corrodedDURING CRUISE, ALL CABIN EMERGENCY LIGHTS CAME ON EXCEPT LIGHTS AT DOOR 4L. NEW POWER SUPPLY AND BATTERY NO HELP. FOUND LOW VOLTAGE AT PIN 22 AT DM33407. SUSPECT FAULT IN WIRE BETWEEN D6222P AND DM33407. *S/D* REPLACED CORRODED CONNECTOR D6219P AND D6207JMay 22, 1997 · N769UA · Boeing 777222 · Emergency LightingSDR 97UAL900415Aural Warning · activatedCREW REPORTED, ON APPROACH AT 800 FT RECEIVED AURAL WARNING TOO LOW GROUND. GREEN GEAR DOWN LIGHT ON AT ALL TIMES.May 22, 1997 · N784UA · Boeing 777222 · Ground Proximity SystemSDR 97UAL900374Vhf Antenna · crackedON WALK-AROUND, FOUND LOWER FORWARD VHF ANTENNA CRACKED COMPLETELY THROUGH. *S/D* MODELS OF ANTENNA, P/N DMC 180-1-1 HAVE DEMONSTRATED SUSCEPTIBILITY TO SPLITTING AND CRACKING. PRODUCTION HAS BEEN DISCONTINUED AND REPLACEMENT ANTENNA WILL BE OF PART NUMBER May 18, 1997 · N773UA · Boeing 777222 · VHF Communications System
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