Boeing 737-322

Service difficulty reports · 4,751

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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 aircraft_model_key = '737322'
  ORDER BY difficulty_date DESC"

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SDR 98UAL900257Irs · malfunctionedINERTIAL REFERENCE SYSTEM DRIFT OR FLIGHT MANAGEMENT COMPUTER NAV PROBLEM IN FLIGHT. *S/D* BOTH NR 1 AND NR 2 INERTIAL REFERENCE UNITS (NAV UNITS) WERE REPLACED PRECAUTIONARY. SYSTEM OPERATION HAS SINCE BEEN NORMAL. THE SHOP REPORTED THEY WERE UNABLE TO FIJun 13, 1998 · N354UA · Boeing 737322 · Attitude and Direction Data SystemSDR 98UAL900251Trim · failedCREW DIVERTED TO BNA DUE TO INOPERATIVE HORIZONTAL STABILIZER TRIM.Jun 10, 1998 · N352UA · Boeing 737322 · Stabilizer Control SystemSDR 98UAL900169Overheat Light · illuminatedLEFT WING BODY OVERHEAT LIGHT WAS ILLUMINATED AND REMAINED ON AFTER THE DUCT WAS DEPRESSURIZED.Apr 30, 1998 · N302UA · Boeing 737322 · Overheat DetectionSDR 98UAL900161Engine · malfunctionedSHUT DOWN THE NUMBER ONE ENGINE WHILE TURNING BASE LEG INTO SMF DUE TO ENGINE VIBRATION AND OIL QUANTITY DIMINISHING.Apr 23, 1998 · N381UA · Boeing 737322 · Engine (Turbine/Turboprop)SDR 98UAL900158Wire · failedNUMBER TWO LEADING EDGE SLAT INTRANSIT LIGHT ILLUMINATED ON OVERHEAD AND INTRANSIT ON FORWARD PANEL. *S/D* THE NR 2 SLAT LOCK SWITCH AND ASSOCIATED WIRING WERE CHECKED FOR AN INTERMITTENT OPEN. BOTH THE SWITCH AND THE WIRE CHECKED GOOD. THEY WERE PREVIOUSLApr 23, 1998 · N375UA · Boeing 737322 · Flight Control System WiringSDR 98UAL900155Tube · crackedNUMBER TWO ENGINE OIL FILTER BYPASS LIGHT CAME ON. REDUCED THRUST AND LIGHT WENT OUT. *S/D* FOUND NR 2 ENGINE OIL PRESSURE LINE GOING TO OIL FILTER DIFFERENTIAL PRESSURE SWITCH, CRACKED. REPLACED LINE, OPS CHECK OK.Apr 21, 1998 · N202UA · Boeing 737322 · Engine Oil PressureSDR 98ZZZX1633Seal · failedAIRCRAFT WOULD NOT HOLD CABIN PRESSURE. MAINTENANCE FOUND AFT PRESSURE BULKHEAD SEAL THAT SEALS APU BLEED AIR LINE AND THE AFT PRESSURE BULKHEAD HAD FAILED. CAUSE OF FAILURE IS UNKNOWN. DATE OF SEAL MANUFACTURE, 12-29-87. SUBMITTER RECOMMENDED A MANDATORY Apr 20, 1998 · N348UA · Boeing 737322 · Fuselage Main, BulkheadSDR 98UAL900157Bulkhead Seal · failedUNABLE TO MAINTAIN CABIN PRESSURIZATION. OUTFLOW VALVE INDICATED FULL CLOSED IN THE AUTO MODE. *S/D* ACCOMPLISHED FUSELAGE LEAK CHECK AND FOUND THAT THE FLEXIBLE PRESSURE SEAL AT THE PRESSURE BULKHEAD HAD BLOWN. THE FLEXIBLE RUBBER BOOT WAS REPLACED. PRESApr 19, 1998 · N348UA · Boeing 737322 · Fuselage Main, BulkheadSDR 98UAL900143Sensor · out of positionRIGHT WING BODY OVERHEAT DETECTION SYSTEM LIGHT ON. *S/D* SENSOR IN PYLON WAS IN CLOSE PROXIMITY TO DUCT. REPOSITIONED SENSOR AND RAN THE ENGINE AT POWER FOR TWENTY MINUTES WITH NO INDICATIONS, OPS CHECK GOOD.Apr 12, 1998 · N351UA · Boeing 737322 · Overheat DetectionSDR 98UAL900138Pin · installedDURING TAKEOFF, THE TAKEOFF WARNING HORN SOUNDED WITH THE THROTTLES ADVANCED. PULLING THE AIR-GROUND CIRCUIT BREAKER SILENCED THE HORN. *S/D* DURING PROBLEM IDENTIFICATION AND TROUBLESHOOTING, MAINTENANCE FOUND THE RIGHT HAND MAIN LANDING GEAR SAFETY SENSORApr 4, 1998 · N378UA · Boeing 737322 · Landing Gear Retraction/Extension SystemSDR 98UAL900133Eau Fork · fracturedBOTH THRUST REVERSER UNLOCK LIGHTS ILLUMINATED AFTER TAKEOFF. *S/D* FOUND ENGINE ACCESS UNIT RETAINING FORK ON RADIO RACK FRACTURED AND MISSING PIN. EAU WAS LOOSE IN RACK. REPLACED FORK AND PERFORMED EAU OPS CHECK, OPS CHECK GOOD.Mar 31, 1998 · N345UA · Boeing 737322 · Engine Thrust ReverserSDR 98UAL900131Actuator · leakingLOSS OF 'A' SYSTEM HYDRAULIC FLUID. FLUID LEVEL DOWN TO 36 PERCENT. TURNING OFF EMDP STOPPED FLUID LOSS. IN CRUISE WITH EMDP OFF, THE EDP LOW PRESS LIGHT BEGAN TO FLICKER AND 'A' SYSTEM PRESSURE FLUCTUATED, ONE TIME DROPPING BELOW 2000 PSI. QUANTITY WAS OBMar 29, 1998 · N202UA · Boeing 737322 · Drag Control ActuatorSDR 98UAL900119Relay · failedGROUND SERVICE BUS CIRCUIT BREAKER POPPED, LOST GENERATOR. *S/D* INSPECTED WIRING BEHIND THE P-6 PANEL AND ALL LOOKED GOOD. REPLACED GROUND SERVICE RELAY, OPS CHECK GOOD.Mar 21, 1998 · N368UA · Boeing 737322 · External Power SystemSDR 98UAL900628Structure · damagedDAMAGE CENTERED AT BS 270 STRINGER 24R (LAP SPLICE), JUST BELOW LAV SERVICE PANEL, ABOVE THE NOSE LANDING GEAR DOOR. THE IMPACT PUNTURED THE FUSELAGE SKIN IN 3 PLACES, SEVERING STR 28R AND 24R AT BS 300, AND DAMAGING STRINGER 24R AT BS 240 AND CRUSHING THE OUTMar 11, 1998 · N392UA · Boeing 737322 · Fuselage Main, StructureSDR 98UAL900114Hyd Pump · failedTHE NUMBER ONE ENGINE HYDRAULIC PUMP FAILED. CREW FELT VIBRATION IN CABIN WITH 'A' HYDRAULIC SYSTEM PRESSURE FLUCTUATING AND THEN VIBRATION AND FLUCTUATION STOPPED, BUT THE PUMP LOW PRESSURE LIGHT CAME ON. *S/D* REPLACED THE NUMBER ONE ENGINE DRIVEN HYDRAULMar 11, 1998 · N306UA · Boeing 737322 · Hydraulic Pump (Electric/Engine), MainSDR 98UAL900073Transmitter · failedAFTER THE GEAR WAS RAISED, THERE WAS A 'B' SYSTEM HYDRAULIC PRESSURE LOSS. *S/D* REPLACED 'B' SYSTEM PRESSURE TRANSMITTER. HYDRAULIC SYSTEM CHECKS NORMAL AFTER REPLACEMENT.Feb 19, 1998 · N363UA · Boeing 737322 · Hydraulic Pressure SensorSDR 98UAL900080Oil Light · illuminatedTHE NUMBER ONE ENGINE LOW OIL PRESSURE LIGHT CAME ON. AFTER AWHILE, THE OIL PRESSURE STARTED TO DROP. THE NUMBER ONE ENGINE WAS SHUTDOWN.Feb 18, 1998 · N304UA · Boeing 737322 · Engine Oil PressureSDR 98UAL900072Mechanism · lack of lubeCABIN DOOR WARNING LIGHT ILLUMINATED. *S/D* CHECKED OPERATION OF DOOR 1L. CLEANED AND LUBED LATCH ROLLERS AND OPERATING MECHANISMS, DOOR OP CHECKED GOOD.Feb 18, 1998 · N305UA · Boeing 737322 · Passenger/Crew DoorsSDR 98UAL900060Temp Sensor · failedTHE NUMBER 1 ENGINE OIL TEMPERATURE WAS IN THE HIGH END OF THE YELLOW BAND. THE TEMPERATURE FOLLOWS THE THROTTLE POSITION. ALL OTHER INDICATION WERE NORMAL. *S/D* REPLACED OIL TEMPERATURE BULB.Feb 11, 1998 · N364UA · Boeing 737322 · Engine Oil TemperatureSDR 98UAL900043Actuator · failedRUDDER TRIM CIRCUIT BREAKER POPPED AND WOULD NOT RESET. RUDDER TRIM WAS INOPERABLE. *S/D* REPLACED RUDDER TRIM ACTUATOR, SYSTEM OP CHECKED GOOD.Jan 31, 1998 · N335UA · Boeing 737322 · Rudder Tab Control SystemSDR 98UAL900023Circuit Card · failedLANDED WITH AN UNSAFE GEAR INDICATION. *S/D* REPLACED CIRCUIT CARD. OPERATIONALLY CHECKED GEAR, GEAR CHECKED GOOD.Jan 19, 1998 · N357UA · Boeing 737322 · Landing Gear Position and WarningSDR 98UAL900629Structure · damagedDAMAGE AT FUSE SKIN ASSY (65-45800-1257) & CIRCUMFERENTIAL FRAMES STA 178 - 259, BL 0 & S-24L. S-24L (65-45800-1247) WAS SEVERED. THE FWD PORTION OF THE LT NLG DOOR WAS CRUSHED, THE LWR O/B CORNER STA 227.8 BULKHEAD WEB WAS CRACKED AND/OR BENT. A 7.25 SECTIONJan 8, 1998 · N393UA · Boeing 737322 · Fuselage Main, StructureSDR 97UAL900887Overheat Light · illuminatedLEFT WING BODY OVERHEAT LIGHT CAME ON AFTER TAKEOFF. NR 1 ENGINE BLEED AIR AND ISOLATION VALVE WERE SHUT OFF. LEFT PACK LIGHT STAYED ON UNTIL TOUCHDOWN. *S/D* APU WAS NOT RUNNING DURING THE EVENT. RAN NUMBER ONE ENGINE AND FOUND NO LEAKS. A RESISTANCE CHDec 21, 1997 · N386UA · Boeing 737322 · Overheat DetectionSDR 97UAL900885Windshield · shatteredCAPTAIN'S WINDSHIELD OUTER PANE SHATTERED. *S/D* REPLACED CAPTAIN'S WINDSHIELD.Dec 17, 1997 · N342UA · Boeing 737322 · Flight Compartment WindowsSDR 97UAL900877Overheat Det · shortedRIGHT HAND WING BODY OVERHEAT LIGHT CAME ON INTERMITTENTLY ONE MINUTE AFTER TAKEOFF. *S/D* TROUBLESHOOTING INDICATED THAT RIGHT-HAND WING LEADING EDGE OVERHEAT DETECTOR ELEMENT WAS SHORTED TO GROUND. REPLACED DETECTOR AND PERFORMED ENGINE RUN. SYSTEM CHECKDec 15, 1997 · N337UA · Boeing 737322 · Overheat DetectionSDR 97UAL900863Bearing · misinstalledON ARRIVAL, FOUND THAT NR 3 MAIN TIRE ASSEMBLY WAS MISSING, BUT BRAKE ASSEMBLY AND ALL WHEEL RETAINING HARDWARE WAS IN PLACE. THE INNER BEARING IS ON THE AXLE BUT DAMAGED AND MOST OF THE OUTER BEARING IS GONE. *S/D* WHEEL/TIRE ASSEMBLY DEPARTED AIRCRAFT ON Dec 8, 1997 · N388UA · Boeing 737322 · Wheel/Ski/FloatSDR 97UAL900858Fuel Pump · failedNUMBER 2 ENGINE FLAMED OUT IN FLIGHT. *S/D* THE FUEL PUMP SUFFERED FOD DAMAGE FROM A WASHER. THE FUEL PUMP WAS REPLACED. OPS CHECK WAS GOOD.Dec 3, 1997 · N311UA · Boeing 737322 · Engine Fuel PumpSDR 97UAL900856Pack · odorODOR FROM LEFT PACK IN COCKPIT AND FORWARD CABIN ON GROUND AND IN FLIGHT. SMELLS LIKE OVERHEATING. *S/D* AFTER SHUTTING DOWN THE APU AND RUNNING THE LEFT-HAND PACK WITH ENGINE BLEED AIR, ODOR DISSIPATED AFTER 15 TO 20 MINUTES. FOUND METAL ON APU CHIP DETECDec 3, 1997 · N356UA · Boeing 737322 · Cabin Cooling SystemSDR 97UAL900857Air Distr · odorFUEL VAPOR IN CABIN DURING FUELING. SLIGHT SMELL FOR 3 LEGS. SMELL WAS STRONG AT DEN. *S/D* THE FUEL MANIFOLD WAS CRACKED NEAR THE NOZZLE AT THE TWO O'CLOCK POSITION ON THE APU. THE TWO O'CLOCK POSITION ON THE MAIN START FUEL NOZZLE WAS LEAKING. REPLACEDDec 2, 1997 · N315UA · Boeing 737322 · Airborne Auxiliary Power Unit (APU) SystemSDR 97UAL900825Windshield · crackedPILOT'S NUMBER ONE WINDOW HAS SPIDER CRACKS. *S/D* REPLACED PILOT'S NUMBER ONE WINDOW (S/N 97175H8958-484) AND SET TAP SETTINGS. REPLACED P5-9 MODULE AND WINDOW HEAT CONTROLLER.Nov 14, 1997 · N316UA · Boeing 737322 · Flight Compartment WindowsSDR 97UAL900812Connector · failedEEL LIGHTS DID NOT WORK FROM ROW 16 TO THE AFT END OF THE AIRCRAFT. *S/D* FOUND BAD CONNECTION AT ROW 16. SECURED CABLE, OPS CHECK GOOD.Nov 9, 1997 · N377UA · Boeing 737322 · Emergency LightingSDR 97UAL900800Controller · failedUNABLE TO PRESSURIZE THE AIRCRAFT IN AUTO. CABIN PRESSURE OSCILLATES UP AND DOWN IN STANDBY. *S/D* PRESSURE OSCILLATIONS CAUSED BY A FAILED CABIN PRESSURE CONTROLLER. REPLACED THE CABIN PRESSURE CONTROLLER AND CONTROL PANEL.Oct 28, 1997 · N322UA · Boeing 737322 · Cabin Pressure ControllerSDR 97UAL900795Anti-Ice Valve · failedTHE RIGHT ENGINE NOSE COWL ANTI-ICE VALVE OPEN LIGHT WAS ON BRIGHT WITH SWITCH ON. REDUCING ENGINE POWER CAUSED THE LIGHT TO DIM. INCREASING THE ENGINE POWER BACK UP CAUSED THE LIGHT TO BRIGHTEN. *S/D* REMOVED AND REPLACED NOSE COWL ANTI-ICE VALVE, OPS CHEOct 26, 1997 · N351UA · Boeing 737322 · Air Intake Anti/De-Ice SystemSDR 97UAL900794Glide Slope · malfunctionedCAPTAIN'S ILS GLIDE SLOPE WAS INOPERATIVE. *S/D* CAPTAIN'S VHF NAV RECEIVER WAS CAUSE FOR NR 1 ILS GLIDE SLOPE BEING INOPERATIVE. NR 1 VHF NAV RECEIVER WAS REPLACED, THEN SYSTEM TESTED OK ON DFCS QUICK TEST AND UP-LEFT/DN-RIGHT TEST. SHOP REPORTED THE GLIDOct 24, 1997 · N359UA · Boeing 737322 · Glide Slope SystemSDR 97UAL900793Controller · failedUNABLE TO PRESSURIZE AIRCRAFT AFTER TAKEOFF. AIRCRAFT WAS OPERATING IN AUTO MODE, SWITCHED TO STANDBY AND CABIN STILL CONTINUED TO CLIMB 500 FPM. OUTFLOW VALVE INDICATOR SHOWED FULL CLOSED. NO DOOR WARNING LIGHTS ON. *S/D* REPLACED CABIN PRESSURE CONTROLLOct 24, 1997 · N352UA · Boeing 737322 · Cabin Pressure ControllerSDR 97UAL900789Indication · malfunctionedDURING GEAR RETRACTION, THE LEFT MAIN LANDING GEAR RED LIGHT STAYED ON WHEN THE HANDLE WENT TO THE OFF POSITION. THE LEFT MAIN LANDING GEAR GREEN LIGHT CAME ON AND THE RED LIGHT ALSO REMAINED ON.Oct 22, 1997 · N306UA · Boeing 737322 · Landing Gear Position and WarningSDR 97UAL900784Retract Mech · malfunctionedGEAR HANDLE COULD NOT BE RAISED PASS THE LEVER LATCH SOLENOID.Oct 21, 1997 · N364UA · Boeing 737322 · Landing Gear Retraction/Extension SystemSDR 97UAL900729Pulleys · damagedFOUND TWO BROKEN PULLEYS ON AFT FLAP BOOM CABLE ASSEMBLY. THE DAMAGED PULLEYS WERE REPLACED ALONG WITH TWO FLAP BOOM CABLES. THE SYSTEM WAS RIGGED. THE OPERATIONAL CHECK OF THE SYSTEM WAS GOOD.Sep 23, 1997 · N335UA · Boeing 737322 · Trailing Edge Flap Control SystemSDR 97UAL900690Acm · failedWITH THE APU RUNNING AND THE NR 2 ENG SHUT DOWN, THE NR 1 ENG WAS SHUT DOWN. THE COCKPIT FILLED WITH SMOKE AND THE CABIN FILLED WITH SMOKE SLIGHTLY. *S/D* FOUND AIR CYCLE MACHINE SEIZED. REPLACED ACM. AIRCRAFT AIR CONDITIONING OPERATES NORMAL.Sep 10, 1997 · N351UA · Boeing 737322 · Cabin Cooling SystemSDR 97UAL900686Engine · fireSMOKE FROM REAR OF NR 2 ENGINE AFTER SHUTDOWN. FOUND SMALL FIRE BURNING IN TAILPIPE. FIRE WENT OUT BY ITSELF. *S/D* ALL MAINTENANCE CHECKS WITHIN OPERATING LIMITS. NOT CONTINUED OPERATION PROBLEMS. ACCOMPLISHED FUEL SHUTOFF MEASUREMENT CHECK. CHECKS WITHSep 7, 1997 · N309UA · Boeing 737322 · Engine (Turbine/Turboprop)SDR 97UAL900645Pressurization · malfunctionedAIRCRAFT DID NOT PRESSURIZE AFTER TAKEOFF IN AUTO OR STANDBY-MANUAL WAS NOT USED. *S/D* PERFORMED OPERATIONAL CHECK, OPS CHECK GOOD. RAN EQUIPMENT COOLING NORMAL SUPPLY. FAN OPERATED NORMALLY. PRESSURIZED AIRCRAFT WITH APU TO 6 PSID, NO PROBLEMS NOTED. PAug 26, 1997 · N336UA · Boeing 737322 · Cabin Pressure Control SystemSDR 97UAL900642Bearing · failedNR 1 ENGINE VIBRATION ENCOUNTERED AT 35,000 FEET AND WAS FOLLOWED SOON AFTER BY AN OIL FILTER BYPASS LIGHT AND FLUCTUATING FUEL FLOW. *S/D* ENGINE WAS REMOVED. ENGINE DISASSEMBLY REVEALED A NUMBER 4 BEARING FAILURE.Aug 20, 1997 · N396UA · Boeing 737322 · Turbine SectionSDR 97UAL900622Compressor · failedON TAKEOFF ROLL, CREW FELT A 'POP' AND PULL TO THE RIGHT. ENGINE INDICATIONS NORMAL. NORMAL ON CLIMBOUT UNTIL APPROXIMATELY 19 THOUSAND FEET, NR 2 ENGINE COMPRESSOR STALL TYPE NOISE. PULLED BACK TO IDLE AND NOTED FAINT LOW FREQUENCY VIBRATION. *S/D* ENGINAug 15, 1997 · N358UA · Boeing 737322 · Turbine Engine Compressor SectionSDR 97UAL900585Fire Loop · shortedFLIGHT DIVERTED TO ONT AFTER DEPARTURE FROM PHX DUE TO APU FIRE WARNING INDICATION. APU FIRE BOTTLE BLOWN DUE TO FIRE INDICATION. *S/D* APU TAILPIPE OVERHEAT LOOP, M515, WAS SHORTED TO GROUND. ELEMENT LOOP M515 WAS REPLACED AND PROPERLY POSITIONED ON THE AJul 30, 1997 · N307UA · Boeing 737322 · Fire DetectionSDR 97UAL900556Tire · failedTIRE TREAD LOSS ON TAKEOFF. SURROUNDING GEAR DOORS WERE DAMAGED. *S/D* REPLACED NR 3 AND NR 4 MLG TIRES DUE TO NR 4 TIRE THROWING TREAD. DAMAGE INCURRED TO RT MLG INNER DOOR. NR 4 TIRE CARCASS WAS BF GOODRICH.Jul 16, 1997 · N352UA · Boeing 737322 · TireSDR 97UAL900539Cdp Tube · looseABORTED TAKEOFF AT APPROXIMATELY 140 KNOTS. NR 1 ENG LOST POWER DURING TAKEOFF AND WAS UNRESPONSIVE TO THROTTLE. EGT WAS NORMAL, PMC AND AUTO-THROTTLE WERE ON WITH NO LIGHTS. THROTTLE RESPONSE WAS SLOWER THAN NR 2. *S/D* MAINTENANCE FOUND THE CDP B-NUT LOJul 15, 1997 · N392UA · Boeing 737322 · Turbine Engine Compressor SectionSDR 97UAL900505Acm · failedAFTER TAKEOFF, NOTICED SMELL OF BURNING, SOMETHING LIKE GLYCOL, AFTER DE-ICE OCCURRED. DISSIPATED OVER 5 MINUTES. *S/D* AFTER SYSTEM INSPECTION, FOUND METAL CHIPS IN RIGHT HAND AIR CYCLE MACHINE. ACM REPLACED, OPS CHECK GOOD.Jul 2, 1997 · N346UA · Boeing 737322 · Cabin Cooling SystemSDR 97UAL900501Coalescer Bags · dirtyODOR IN AIR CONDITIONING SYSTEM DURING CLIMB AND CRUISE. *S/D* ODOR DESCRIBED AS OIL OR BURNING RUBBER. REPLACED COALESCER BAGS (BOTH SIDES). INSPECTED BOTH AC BAYS AND NO DISCREPANCIES FOUND, OPS CHECK GOOD.Jul 1, 1997 · N346UA · Boeing 737322 · Humidity Control SystemSDR 97UAL900478Prsov · failedRIGHT BLEED TRIPOFF LIGHT ON AND A SECOND LATER LEFT BLEED TRIPOFF LIGHT ON. TOTAL LOSS OF CABIN PRESSURE. INITIATED EMERGENCY DESCENT PROCEDURES. ACCOMPLISHED PNEUMATIC SYSTEM TROUBLESHOOTING ON BOTH ENGINES. NUMBER ONE ENGINE TESTED GOOD. NUMBER 2 ENGINJun 18, 1997 · N342UA · Boeing 737322 · Cabin Pressure Control SystemSDR 97UAL900477Control Module · misriggedNO GREEN LIGHT ON LEFT MAIN LANDING GEAR WHEN GEAR HANDLE PUT IN DOWN POSITION. GEAR DID NOT EXTEND AND WAS EXTENDED MANUALLY.Jun 18, 1997 · N387UA · Boeing 737322 · Landing Gear Retraction/Extension System
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