Boeing 747-251B

Service difficulty reports · 827

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 aircraft_model_key = '747251B'
  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 9809786637Pump · failedWHILE IN CRUISE FLIGHT, THE NR 1 ENGINE OIL QUANTITY BEGAN TO DECREASE. THE ENGINE WAS SHUT DOWN WHEN THE INDICATED OIL QUANTITY WAS ONE-HALF GALLON. THE FLIGHT CONTINUED TO SIN AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE ENGINE OIL SCAVENGE PUMP Jul 1, 1998 · N637US · Boeing 747251B · Turbine Engine Oil SystemSDR 9809726624Compressor · stalledWHILE CLIMBING THROUGH 1400 FEET AGL, THE NR 4 ENGINE AUDIBLY COMPRESSOR STALLED AND FLAMED OUT. THE CREW SECURED THE ENGINE, DUMPED FUEL, RETURNED TO MSP, AND LANDED WITHOUT INCIDENT. THE NR 4 ENGINE WAS CHANGED. EXACT PART CAUSING PROBLEM TO BE DETERMINEDJun 27, 1998 · N624US · Boeing 747251B · Turbine Engine Compressor SectionSDR 9809696614Engine · flamed outWHILE CLIMBING THROUGH FL340, THE NR 2 ENGINE FLAMED OUT. THE ENGINES WERE RESTARTED APPROXIMATELY ONE MINUTE LATER WITH NORMAL INDICATIONS. THE FLIGHT CONTINUED TO SEL WITHOUT DIFFICULTY. MAINTENANCE INSPECTED THE ENGINES AND PERFORMED ENGINE RUNS WITH NO Jun 26, 1998 · N614US · Boeing 747251B · Engine (Turbine/Turboprop)SDR 9809686614Engine · flamed outWHILE CLIMBING THROUGH FL340, THE NR 3 ENGINE FLAMED OUT. THE ENGINES WERE RESTARTED APPROXIMATELY ONE MINUTE LATER WITH NORMAL INDICATIONS. THE FLIGHT CONTINUED TO SEL WITHOUT DIFFICULTY. MAINTENANCE INSPECTED THE ENGINES AND PERFORMED ENGINE RUNS WITH NO Jun 26, 1998 · N614US · Boeing 747251B · Engine (Turbine/Turboprop)SDR 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 9809446627Indicator · malfunctionedDURING CLIMB, THE LEFT OUTBOARD TRAILING EDGE FLAPS DID NOT RETRACT BEYOND ONE DEGREE. AIRCRAFT RETURNED TO LAX AND LANDED WITHOUT INCIDENT. MAINTENANCE COULD NOT DUPLICATE THE FAULT BUT REPLACED THE FLAP POSITION INDICATOR AS A PRECAUTION. OPERATIONAL CHECJun 3, 1998 · N627US · Boeing 747251B · Trailing Flap Position Indicating SystemSDR 9809416632Oil Syst · high consumptionDURING CRUISE, THE CREW NOTICED WHAT APPEARED TO BE HIGH OIL CONSUMPTION ON THE NR 1 ENGINE. THE FLIGHT DIVERTED TO ANC AND LANDED WITHOUT DIFFICULTY. MAINTENANCE SERVICED THE ENGINE OIL AND INSPECTED THE ENGINE FOR OIL LEAKS INCLUDING AN ENGINE RUN WITH NO May 28, 1998 · N632US · Boeing 747251B · Turbine Engine Oil SystemSDR 9809376626Sensors · dirtyDURING CLIMB, THE NOSE LANDING GEAR DOOR DID NOT CLOSE AFTER LANDING GEAR RETRACTION. RECYCLED THE LANDING GEAR AND THE DOOR CLOSED. AIRCRAFT CONTINUED TO LAX AND LANDED WITHOUT INCIDENT. CLEANED THE NOSE LANDING GEAR DOOR SENSORS, OPERATIONAL CHECK GOOD.May 26, 1998 · N626US · Boeing 747251B · Landing Gear Door Retract SectionSDR 9809146638Compressor · stalledAT TOP OF DESCENT WITH POWER REDUCTION, THE NR 2 ENGINE COMPRESSOR STALLED. THE ENGINE WAS SHUT DOWN AND A SUCCESSFUL RESTART WAS ACCOMPLISHED AT FL290. ENGINE OPERATION FOR THE REMAINDER OF THE FLIGHT WAS NORMAL. MAINTENANCE INSPECTED THE ENGINE FOR A STALL May 11, 1998 · N638US · Boeing 747251B · Turbine Engine Compressor SectionSDR 9808876638Battery Pack · dischargedDURING LINE CHECK, FOUND D-ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK AND POWER SUPPLY, OPERATIONAL CHECK GOOD.May 9, 1998 · N638US · Boeing 747251B · Emergency LightingSDR 9808646638Battery · dischargedDURING LINE CHECK, FOUND D-ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY, OPERATIONAL CHECK GOOD.May 7, 1998 · N638US · Boeing 747251B · Emergency LightingSDR 9806816611Actuator · malfunctionedDURING CLIMB, THE NR 3 LEADING EDGE FLAP WOULD NOT RETRACT. AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT. REPLACED THE NR 3 LEADING EDGE FLAP ACTUATOR, OPERATIONAL CHECK GOOD.Apr 19, 1998 · N611US · Boeing 747251B · Leading Edge Slat ActuatorSDR 9804966613Engine · malfunctionedDURING CRUISE, THE CREW NOTICED THE NR 3 ENGINE OIL CONSUMPTION TO BE UNUSUALLY HIGH. THE OIL CONSUMPTION DECREASED WITH LOWER POWER SETTINGS SO THE AIRCRAFT DIVERTED TO MSP FOR MAINTENANCE. THE ENGINE WAS NOT SHUT DOWN AND THE FLIGHT WAS COMPLETED WITHOUT FMar 24, 1998 · N613US · Boeing 747251B · Engine (Turbine/Turboprop)SDR 9807846612Chord · crackedDURING M-CHECK, FOUND CRACK ON UPPER CHORD TOP SURFACE FASTENER HOLE AT WL 199, RBL 66. REPAIRED PER EA 66-156316.Mar 9, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9807866612Stringer · corrodedDURING M-CHECK, FOUND CORROSION ON STRINGER WEB AT FS 2360 ADJACENT TO DRAIN HOLE. REPAIRED PER EA 66-153214.Feb 22, 1998 · N612US · Boeing 747251B · Fuselage Main, Longeron/StringerSDR 9807816612Doubler · corrodedDURING M-CHECK, FOUND CORROSION ON REINFORCING DOUBLER ON INTERFACE AREA FS 2360 AT 6 O'CLOCK POSITION. REPAIRED PER EA 66-153214.Feb 22, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9808396612Bulkhead · crackedDURING M-CHECK, FOUND CRACK ON TOP OUTBOARD (RHS) CORNER AT BULKHEAD 400, ZONE 110. REPAIRED PER EO 6-53-41184.Feb 18, 1998 · N612US · Boeing 747251B · Fuselage Main, BulkheadSDR 9807836612Floorbeam · crackedDURING M-CHECK, FOUND FLOORBEAM WEB CRACKED AT FS 460 ADJACENT TO STR 13R. REPAIRED PER EA 66-156307.Feb 18, 1998 · N612US · Boeing 747251B · Fuselage Main, Floor BeamSDR 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 9802646614Hydraulic Line · leakingDURING APPROACH, THE NR 1 HYDRAULIC SYSTEM DEPLETED. AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. REPLACED THE NR 1 ENGINE DRIVEN PUMP AND PRESSURE LIN IN PYLON AREA. OPERATIONAL CHECK GOOD.Feb 15, 1998 · N614US · Boeing 747251B · Hydraulic System, MainSDR 9803156614Compressor · stalledAFTER LANDING AND JUST AFTER STOWING THE THRUST REVERSERS, THE CREW NOTED THE LOW OIL PRESSURE WARNING LIGHT ON AND EGT INDICATION ABOVE REDLINE FOR THE NR 4 ENGINE. THE ENGINE WAS SHUT DOWN AFTER REACHING A MAX EGT OF 1132C FOR 73 SECONDS. MAINTENANCE REPLAFeb 14, 1998 · N614US · Boeing 747251B · Turbine Engine Compressor SectionSDR 9807826612Fitting · corrodedDURING M-CHECK, FOUND CORROSION ON THE STRINGER END FITTING 46R AT FS 1000. INSTALLED NEW STRINGER END FITTING PER SRM 51-30-02, 05.Feb 10, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9807886612Bulkhd Fastener · crackedDURING M-CHECK, FOUND CRACK ON FASTENER HOLE AT FS 140 BULKHEAD, STR 14R, INNER RING DOUBLER AREA. REPAIRED PER EA 66-156319.Feb 9, 1998 · N612US · Boeing 747251B · Fuselage Main, BulkheadSDR 9807876612Doubler · corrosionDURING M-CHECK, FOUND CORROSION ON BONDED DOUBLER OUT OF LIMIT AT FS 730, STR 12R. REPAIRED PER EA 66-155576.Feb 8, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9802296613Engine · flamed outJUST BEFORE TOP OF DESCENT AT FL370, THE NR 4 ENGINE FLAMED OUT. THE ENGINE WAS RESTARTED NORMALLY AT FL310 AND PERFORMED WITHOUT ANY PROBLEMS FOR THE REMAINEDER OF THE FLIGHT. MAINTENANCE VISUALLY INSPECTED THE ENGINE WITH NO DEFECTS NOTED. THE ENGINE FUELFeb 6, 1998 · N613US · Boeing 747251B · Engine (Turbine/Turboprop)SDR 9803726613Skin · corrodedDURING PERIODIC CHECK, FOUND CORROSION ON SKIN AT FS 2020 BETWEEN STR 43R TO 44R. REPAIRED PER EA 66-154323.Feb 4, 1998 · N613US · Boeing 747251B · Fuselage Main, Plate/SkinSDR 9801946638Wire · brokenDURING LINE CHECK, FOUND E-ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE ON LEFT SIDE OF AIRCRAFT. REPAIRED BROKEN WIRE, OPERATIONAL CHECK GOOD.Jan 31, 1998 · N638US · Boeing 747251B · Light System WiringSDR 9802996613Longeron · crackedDURING PERIODIC CHECK, FOUND CRACK IN STR 42L AT FS 1740. REPAIRED PER EA 66-155129.Jan 29, 1998 · N613US · Boeing 747251B · Fuselage Main, Longeron/StringerSDR 9807896612Pressure Deck · corrodedDURING M-CHECK, FOUND CORROSION ON LEFT BODY LANDING GEAR WHEEL WELL PRESSURE DECK AT FS 1394, LBL 119, WL 180. REPAIRED PER EA 66-155575.Jan 28, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9808416612Fitting · corrodedDURING M-CHECK, FOUND CORROSION ON DOOR 4R MEDIUM CUTOUT FORWARD FRAME ON INSIDE SURFACE BELOW LEVELING COMPOUND, 6TH FITTING UP FROM BOTTOM CUTOUT AT FS 1690. REPLACED DOOR STOP FITTING (P/N 65B08936-6) PER SRM 51-30-02.Jan 27, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9807796612Skin · corrodedDURING M-CHECK, FOUND SKIN DELAMINATED AND CORRODED AT LEFT BODY LANDING GEAR WHEEL WELL FS 1473, LBL 120, WL 175. REPAIRED PER EA 66-156323.Jan 27, 1998 · N612US · Boeing 747251B · Fuselage Main, Plate/SkinSDR 9807546612Fitting · corrodedDURING M CHECK, FOUND CORROSION ON AFT END FITTINGS FOR STR 26L, 36L, 38L, 40L, 42L, 44L, 46L, 48L, 49L, 50L, AND 51L AT FS 2360. REPLACED FITTINGS PER DWG 65B02697 AND 65B02699.Jan 27, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9807536612Fitting · corrodedDURING M CHECK, FOUND CORROSION ON THE FORWARD FITTINGS FOR STR 26L, 36L, 40L, 42L, 44L, 46L, 49L, 50L, 51 AT FS 2360. REPLACED FITTINGS PER DWG 65B04159, 65B04160, AND 65B04161.Jan 27, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9807526612Fitting · corrodedDURING M CHECK, FOUND CORROSION ON THE AFT FITTINGS FOR STR 26R, 36R, 38R, 40R, 42R, 44R, 46R, 48R, 49R, 50R, AND 51R AT FS 2360. REPLACED FITTINGS PER DWG 65B02697 AND 65B02699.Jan 27, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9807516612Fitting · corrodedDURING M CHECK, FOUND CORROSION ON THE FORWARD FITTINGS FOR STR 26R, 36R, 38R, 40R, 42R, 44R, AND 46R AT FS 2360. REPLACED FITTINGS PER DWG 65B04160.Jan 27, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9807506612Forging · corrodedDURING M CHECK, FOUND CORROSION ON WINDOW FORGING LEFT FS 2140-2160, STR 22L. REPLACED FORGING PER SRM 51-30-02.Jan 27, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9801626613Fitting · corrodedDURING PERIODIC CHECK, FOUND CORROSION ON THE AFT END FITTINGS FOR STR 48L, 49L, 50L, AND 51L AT FS 2360. REPLACED FITTINGS PER BOEING DRAWING 65B02634.Jan 25, 1998 · N613US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9801616613Fitting · corrodedDURING PERIODIC CHECK, FOUND CORROSION ON THE FORWARD END FITTINGS FOR STR 48L TO 51L AT FS 2360. REPLACED FITTINGS PER BOEING DRAWING 65B02634.Jan 25, 1998 · N613US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9801606613Fitting · corrodedDURING PERIODIC CHECK, FOUND CORROSION ON THE FORWARD END FITTINGS FOR STR 46R, 50R, AND 51R AT FS 2360. REPLACED FITTINGS PER BOEING DRAWING 65B02634.Jan 25, 1998 · N613US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9801596613Fitting · corrodedDURING PERIODIC CHECK, FOUND CORROSION ON THE AFT END FITTINGS FOR STR 49R TO 51R AT FS 2360. REPLACED FITTINGS PER BOEING DRAWING 65B02634.Jan 25, 1998 · N613US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9808386612Web · crackedDURING M-CHECK, FOUND CRACK ON WEB AT RIGHT NR 4 MEDIUM FORWARD FRAME. REPAIRED PER EA 66-155570.Jan 24, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9807856612Floorbeam · corrodedDURING M-CHECK, FOUND CORROSION ON FLOORBEAM WEB AT FS 1350, LBL 33. REPAIRED PER EA 66-153207.Jan 22, 1998 · N612US · Boeing 747251B · Fuselage Main, Floor BeamSDR 9808446612Fitting · corrodedDURING M-CHECK, FOUND CORROSION ON DOOR 3R MEDIUM CUTOUT AFT LOWER CORNER SILL FITTING TOP SURFACE. REPLACED FITTING (P/N 65B11752-10) PER DWG SA 5340-01062-7.Jan 21, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9808406612Fitting · crackedDURING M-CHECK, FOUND CRACK AT DOOR 3R MEDIUM FORWARD FRAME, LOWER FORWARD CORNER FITTING AT FS 1256, RBL 124, WL 198. INSTALLED NEW FITTING PER DWG SA 5340-01062-7.Jan 21, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9808366612Spar · corrodedDURING M-CHECK, FOUND CORROSION ON FRONT SPAR ABOVE LOWER CHORD AT FS 971 OPPOSITE LEADING EDGE FLAP NR 7. REPAIRED PER EA 66-155580.Jan 21, 1998 · N612US · Boeing 747251B · Wing SparSDR 9808356612Fitting · crackedDURING M-CHECK, FOUND CRACK AT DOOR 3L MEDIUM FORWARD LOWER CORNER SILL FITTING FS 1272, LBL 125, WL 200. INSTALLED NEW REVEAL (P/N 65B11751-601) PER DWG SA 5340-1062-7.Jan 21, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9808346612Fitting · corrodedDURING M-CHECK, FOUND CORROSION ON DOOR 3L MEDIUM CUTOUT AFT LOWER CORNER SILL FITTING TOP SURFACE AT FS 1314, LBL 125, WL 199. INSTALLED NEW REVEAL (P/N 65B11752-9) PER DWG SA 5340-01062-7.Jan 21, 1998 · N612US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9808436612Frame · crackedDURING M-CHECK, FOUND CRACK ON MAIN DECK A-ZONE FS 360 FRAME WEB ADJACENT TO STR 25L. FABRICATED AND INSTALLED NEW WEB PER EA 66-153228.Jan 19, 1998 · N612US · Boeing 747251B · Fuselage Main, FrameSDR 9808426612Frame · crackedDURING M-CHECK, FOUND CRACK ON MAIN DECK A-ZONE FS 260 FRAME WEB ADJACENT TO STR 25R. FABRICATED AND INSTALLED NEW WEB PER EA 66-153227.Jan 19, 1998 · N612US · Boeing 747251B · Fuselage Main, FrameSDR 9808376612Skin · corrodedDURING M-CHECK, FOUND CORROSION ON LOWER CHORD LOWER SKIN AT FRONT SPAR AREA FS 1392. REPAIRED PER EA 66-156321.Jan 18, 1998 · N612US · Boeing 747251B · Wing, Plate/Skin
Back to Boeing 747-251B