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 9710236611Tire · failedDURING LANDING, THE NR 3 TIRE FAILED. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. REPLACED THE NR 3 AND NR 4 TIRE ASSEMBLIES, NBR 3 ANTI-SKID VALVE, AND ANTI-SKID CONTROL UNIT, OPERATIONAL CHECK GOOD.May 25, 1997 · N611US · Boeing 747251B · TireSDR 9710136614Engine · flamed outWHILE CLMBING THROUGH FL370, NR 4 ENGINE FLAMED OUT. ENGINE WAS SECURED AND RELIT PER COM PROCEDURE. EGT REACHED 990C FOR APPROXIMATELY 80 SECONDS NEAR THUNDERSTORM ACTIVITY WITH LIGHTNING AND STATIC CHARGE. MAINTENANCE INSPECTED ENGINE PER MM 72-00-00, PG May 22, 1997 · N614US · Boeing 747251B · Engine (Turbine/Turboprop)SDR 9709986611Bulkhead · crackedDURING TRANSITION CHECK, FOUND CRACK IN NR 4 PYLON REAR ENGINE MOUNT BULKHEAD STRAP NACELLE STA 223. REPAIRED PER EA 66-150141.May 18, 1997 · N611US · Boeing 747251B · Nacelle/Pylon, Bulkhead/FirewallSDR 9708926623Compressor · stalledON TAXI OUT, CREW FELT A COMPRESSOR STALL, NR 4 ENGINE FLAMED OUT WITH EGT RISING TO RED. ENGINE WAS MOTORED UNTIL EGT WAS BELOW 150C. MAINTENANCE INSPECTED ENGINE PER MM 72--00-00, PG 601 AND FIM 71-01-00, PG 23. NO DEFECTS WERE NOTED. ENGINE RUN CHECKED May 5, 1997 · N623US · Boeing 747251B · Turbine Engine Compressor SectionSDR 9708336636Egt Indication · risingDURING LANDING WHILE IN THRUST REVERSE, THE NR 1 ENGINE EGT BEGAN TO RISE. THE NR 1 ENGINE WAS SHUT DOWN AT 695C. MAINTENANCE INSPECTED ENGINE GROUND RUN AND CHECKE DC REVERSE OPERATION, NO DISCREPANCIES NOTED. SPECIFIC PART CAUSING PROBLEM TO BE DETERMINEDApr 27, 1997 · N636US · Boeing 747251B · Engine EGT/TIT Indicating SystemSDR 9706826638Controller · malfunctionedDURING TAKEOFF (PEK), THE NR 1 ENGINE EPR LAGGED. TAKEOFF WAS ABORTED AT 40 KNOTS. FLIGHT CREW TAXIED BACK TO DEPARTURE END OF RUNWAY AND DEPARTED. MAINTENANCE REPLACED THE HIGH STAGE CONTROLLER ON NR 1 ENGINE.Apr 2, 1997 · N638US · Boeing 747251B · Pneumatic Distribution SystemSDR 9706836612Fire Wire · chafedDURING ENGINE SHUTDOWN, THE APU FIRE A-LIGHT ILLUMINATED. FIRE BOTTLES DISCHARGED. INSPECTION OF APU AND APU COMPARTMENT REVEALED NO EVIDENCE OF A FIRE. CLEANED AREA AND APU GROUND RUN AND TESTED OK. FIRE EXTINGUISHER AND SQUIB WERE REPLACED. INSPECTED FIMar 29, 1997 · N612US · Boeing 747251B · Fire DetectionSDR 9705496614Warning Card · not seatedDURING TAKEOFF, THE TAKEOFF WARNING HORN SOUNDED. AIRCRAFT ABORTED TAKEOFF AND RETURNED TO THE GATE. RESEATED THE AURAL WARNING CARDS. OPERATIONAL CHECK GOOD.Mar 17, 1997 · N614US · Boeing 747251B · Central WarningSDR 9703826614Wire · openDURING TAKEOFF, THE TAKEOFF WARNING HORN SOUNDED. AIRCRAFT ABORTED TAKEOFF AND RETURNED TO THE GATE. REPAIRED OPEN WIRE AT SPLICE SP1656 OF STABILIZER TRIM TAKEOFF SWITCH, OPERATIONAL CHECK GOOD.Feb 24, 1997 · N614US · Boeing 747251B · Landing Gear System WiringSDR 9703836614Aural Warn Box · malfunctionDURING TAKEOFF, THE TAKEOFF WARNING HORN SOUNDED. AIRCRAFT ABORTED TAKEOFF AND RETURNED TO THE GATE. REPLACED THE AURAL WARNING SYSTEM BOX, OPERATIONAL CHECK GOOD.Feb 22, 1997 · N614US · Boeing 747251B · Central WarningSDR 9703616612Engine · failedDURING CRUISE, THE NR 1 ENGINE EXPERIENCED AN ENGINE FLAMEOUT DUE TO OVERTEMP. AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT. REPLACED THE NR 1 ENGINE. OPERATIONAL CHECK GOOD.Feb 15, 1997 · N612US · Boeing 747251B · Engine (Turbine/Turboprop)SDR 9702466628Fire Light · illuminatedDURING CLIMB, THE NR 3 ENGINE FIRE WARNING SYSTEM INDICATED HIGH AND THE FAULT LIGHT AND DETECTION LIGHT ILLUMINATED. DISCHARGED FIRE BOTTLE AND SHUT DOWN THE ENGINE AS A PRECAUTION. AIRCRAFT RETURNED TO LAX AND LANDED WITHOUT INCIDENT. RESEATED AND CLEANED Feb 5, 1997 · N628US · Boeing 747251B · Fire DetectionSDR 9703056624Spar Chord · corrodedDURING PERIODIC CHECK, FOUND CORROSION ON CHORD AT FRONT SPAR FS 1501. REPAIRED PER EA 66-121372.Feb 4, 1997 · N624US · Boeing 747251B · Wing SparSDR 9703046624Floorbeam · corrodedDURING PERIODIC CHECK, FOUND CORROSION ON FLOORBEAM AT FS 450 TO 456, RBL 22 TO RBL 32. REPAIRED PER EA 66-121373.Feb 4, 1997 · N624US · Boeing 747251B · Fuselage Main, Floor BeamSDR 9702476612Compressor · stalledDURING TOP OF DESCENT AT 37,000 FEET, NR 1 ENGINE EXPERIENCED A COMPRESSOR STALL FOLLOWED BY A RISE IN EGT. NR 1 ENGINE WAS SHUT DOWN AND SUCCESSFULLY RESTARTED AT 20,000 FEET. MAINTENANCE PERFORMED TYPE 'A' STALL INSPECTION CHECK PER FIM 71-01-00. REMOVED Feb 4, 1997 · N612US · Boeing 747251B · Turbine Engine Compressor SectionSDR 9701866625Engine · bird strikeDURING CLIMB AFTER DEPARTURE, CREW REPORTED POSSIBLE BIRD STRIKE ON RIGHT WING. DURING CRUISE FLIGHT, NR 3 ENGINE HAD A LOW FREQUENCY VIBRATION AT LOWER POWER SETTINGS. NR 3 ENGINE OIL QUANTITY BEGAN TO DECREASE, NR 3 ENGINE WAS SHUT DOWN AND LATER RESTARTEDJan 27, 1997 · N625US · Boeing 747251B · Engine (Turbine/Turboprop)SDR 9701736627Combust Chamber · failedNR 1 ENGINE FAILED AFTER TAKEOFF POWER WAS APPLIED. AIRCRAFT TAXIED BACK TO THE GATE AND PASSENGERS DEPLANED THROUGH JETWAY WITHOUT FURTHER EVENT. MAINTENANCE FOUND NR 1 ENGINE DIFFUSER CASE AND COMBUSTION CHAMBERS RUPTURED. DAMAGE TO PYLON SKIN AND WING LEJan 26, 1997 · N627US · Boeing 747251B · Turbine Engine Combustion SectionSDR 9701576613Battery Pack · dischargedDURING LINE CHECK, FOUND THE 'E' ZONE EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY SUPPLY, OPERATIONAL CHECK GOOD.Jan 26, 1997 · N613US · Boeing 747251B · Emergency LightingSDR 9701406625Aural Warn · malfunctionedDURING TAKEOFF, THE AURAL WARNING HORN SOUNDED. AIRCRAFT ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE COULD NOT DUPLICATE FAULT, OPERATIONAL CHECK OF AURAL WARNING SYSTEM AND FLAP SYSTEM CHECKED GOOD.Jan 18, 1997 · N625US · Boeing 747251B · Central WarningSDR 9700646614Pressure Trans · inoperativeDURING CLIMB, THE NR 1 HYDRAULIC SYSTEM LOW QUANTITY LIGHT ILLUMINATED. AIRCRAFT DIVERTED TO SEA AND LANDED WITHOUT INCIDENT. REPLACED THE NR 1 HYDRAULIC PRESSURE TRANSMITTER, OPERATIONAL CHECK GOOD.Jan 13, 1997 · N614US · Boeing 747251B · Hydraulic Pressure SensorSDR 9700456631Battery Pack · dischargedDURING LINE CHECK, FOUND 'A' ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACKS, OPERATIONAL CHECK GOOD.Jan 10, 1997 · N931US · Boeing 747251B · Emergency LightingSDR 9700376631Lights · inoperativeDURING LINE CHECK, FOUND EMERGENCY EXIT LIGHTS INOPERATIVE AT DOOR 2L AND ESCAPE SLIDE LIGHT INOPERATIVE AT DOOR 1L, 1R, 2L, 2R, 4L, AND 4R. CHARGED BATTERIES AND REPLACED EMERGENCY LIGHTS, OPERATIONAL CHECK GOOD.Jan 7, 1997 · N631US · Boeing 747251B · Emergency LightingSDR 9700826625Seat Track · corrodedDURING PERIODIC CHECK, FOUND CORROSION ON SEAT TRACK FLANGE. REPAIRED PER EA 66-121308.Jan 3, 1997 · N625US · Boeing 747251B · Fuselage, Seat/Cargo Attach FittingsSDR 9627326627Tr Unit · malfunctionedDURING LANDING, ENGINE NR 1 REVERSER WOULD NOT STOW. DURING SECOND STOW ATTEMPT ENGINE NR 1 EXPERIENCED A COMPRESSOR STALL AND AUTO SHUTDOWN. MAINTENANCE INSPECTED ENGINE NR 1, OPS CHECK OF ENGINE AND REVERSER WAS PERFORMED. NO DISCREPANCIES NOTED.Dec 30, 1996 · N627US · Boeing 747251B · Engine Thrust ReverserSDR 9627746637Fitting · crackedDURING PERIODIC CHECK, FOUND THE FORWARD LOWER INBOARD MIDSPAR FITTING CRACKED AT SECOND FROM AFT INBOARD FASTENER HOLE TO INBOARD EDGE OF FITTING. REPLACED FITTING. WORK COMPLETED ON CITEXT 66-5441-1-0088, FM 65 THROUGH FM 72 REPLACEMENT PROCEDURE, DRAWING Dec 21, 1996 · N637US · Boeing 747251B · Nacelle/Pylon StructureSDR 9627736613Bulkhead Chord · crackedDURING CHECK, FOUND NR 4 STRUT AFT BULKHEAD VERTICAL T-CHORD CRACKED VERTICALLY TWO INCHES FROM TOP RIGHT SIDE. REPLACED VERTICAL T-CHORD PER EA 66-120269 AND EA 66-120281.Dec 21, 1996 · N613US · Boeing 747251B · Nacelle/Pylon, Bulkhead/FirewallSDR 9627826636Seat Track · corrodedDURING PERIODIC CHECK, FOUND CORROSION ON SEAT TRACK FLANGE. REPAIRED PER EA 66-120596.Dec 13, 1996 · N636US · Boeing 747251B · Fuselage, Seat/Cargo Attach FittingsSDR 9627816636Floorbeam · corrodedDURING PERIODIC CHECK, FOUND CORROSION ON TOP CHORD OF FLOORBEAM. REPAIRED PER EA 66-120596.Dec 13, 1996 · N636US · Boeing 747251B · Fuselage Main, Floor BeamSDR 9627756636Fitting · crackedDURING PERIODIC CHECK, FOUND THE NR 3 PYLON INBOARD MIDSPAR FITTING CRACKED. REPLACED FITTING. WORK COMPLETED ON CITEXT JOB NBR 222, EM 5441-01016.Dec 12, 1996 · N636US · Boeing 747251B · Nacelle/Pylon StructureSDR 9627806613Floorbeam · crackedDURING CHECK, FOUND CRACK ON UPPER DECK FLOOR BEAM WEB. REPAIRED PER EA 66-120233.Dec 11, 1996 · N613US · Boeing 747251B · Fuselage Main, Floor BeamSDR 9624946631Fitting · brokenDURING LINE CHECK, FOUND THE LOWER FITTING ON THE RIGHT DOOR POST IN THE AFT CARGO BAY BROKEN. REMOVED AND REPLACED FITTING PER SRM 51-10-01 PG 18, PARA 4.Nov 19, 1996 · N631US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9625336622Seat Track · corrodedDURING PERIODIC CHECK, CORROSION WAS FOUND ON THE UPPER SURFACE OF THE OUTBOARD FLANGE OF THE CROWNLESS SEAT TRACK. REPAIRED PER EA 66-120446.Nov 14, 1996 · N622US · Boeing 747251B · Fuselage, Seat/Cargo Attach FittingsSDR 9624396622Fitting · corrodedDURING P-CHECK, FOUND CORROSION ON THE U-CHANNEL SUPPORT FITTING IN THE LEFT BODY MAIN LANDING GEAR WHEEL WELL FS 1476 ON THE KEEL BEAM TOP PLATE 8 OUTBOARD OF THE INBOARD WALL. REPLACED FITTING PER SRM 51-10-01.Nov 13, 1996 · N622US · Boeing 747251B · Fuselage Main, Attach FittingsSDR 9625346622Floorbeam · corrodedDURING PERIODIC CHECK, FOUND MAIN DECK FLOOR BEAM CORRODED ON THE UPPER SURFACE OF UPPER CHORD. REPAIRED PER EA 66-120440.Nov 9, 1996 · N622US · Boeing 747251B · Fuselage Main, Floor BeamSDR 9623906636Oil Press Line · pin holeENROUTE, THE NR 1 ENGINE OIL QUANTITY DROPPED TO ZERO. THE OIL PRESSURE FLUCTUATED IN YELLOW BAND FOR FIVE MINUTES THEN DROPPED BELOW THE RED BAND. CREW FOLLOWED COM PROCEDURE, SHUT DOWN THE ENGINE AND CONTINUED FLIGHT TO NRT WITHOUT FURTHER INCIDENT. MAINTNov 9, 1996 · N636US · Boeing 747251B · Engine Oil PressureSDR 9624776622Angle · crackedDURING P-CHECK, FOUND A CRACK IN THE 1L MAIN ENTRY DOOR CUTOUT UPPER SILL OUTBOARD ANGLE BS 460. REPAIRED SILL (P/N 65B08301-1) PER EA 66-120437.Oct 31, 1996 · N622US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9623826631Fitting · crackedDURING P-CHECK, FOUND A CRACK IN THE NR 2 PYLON INBOARD NACELLE STRUT T-FITTING AT NACELLE STATION 300. REPAIRED FITTING (P/N 65B90454-2) PER EA 66-120436.Oct 31, 1996 · N631US · Boeing 747251B · Nacelle/Pylon StructureSDR 9623206626Oxygen Syst · leakingDURING CRUISE, THE FLIGHT CREW'S OXYGEN DEPLETED. AIRCRAFT DIVERTED TO ANC AND LANDED WITHOUT INCIDENT. REPLACED THE CREW OXYGEN CYLINDER, CAPTAIN'S OXYGEN MASK AND FIRST OBSERVER'S OXYGEN PANEL, OPERATIONAL CHECK GOOD.Oct 31, 1996 · N626US · Boeing 747251B · Crew Oxygen SystemSDR 9624176631Floorbeam · corrodedDURING P-CHECK, FOUND CORROSION ON THE BS 1740 FLOORBEAM UPPER CHORD AT RBL 58. REPAIRED BEAM (P/N 65B26535-7) PER EA 66-106423.Oct 29, 1996 · N631US · Boeing 747251B · Fuselage Main, Floor BeamSDR 9623796631Spar Web · crackedDURING P-CHECK, FOUND A 1.5 INCH CRACK IN THE NR 4 PYLON MID SPAR WEB. REPAIRED WEB (P/N 65B90319-8) PER EA 66-120431.Oct 29, 1996 · N631US · Boeing 747251B · Nacelle/Pylon StructureSDR 9627726611Web · corrodedDURING CHECK, FOUND CORROSION ON THE MAIN DECK PRESSURE WEB INTERIOR SURFACE. REPAIRED PER EA 66-120205.Oct 28, 1996 · N611US · Boeing 747251B · Fuselage Miscellaneous StructureSDR 9623786631Fitting · corrodedDURING P-CHECK, FOUND CORROSION ON THE OUTBOARD TRAILING EDGE FORE FLAP INTERIOR SECOND FROM INBOARD ATTACH HOOK FITTING. REPLACED FITTING.Oct 28, 1996 · N631US · Boeing 747251B · Trailing Edge FlapsSDR 9623776611Frame · crackedDURING ARMAR VISIT, FOUND CRACKS IN THE BS 400 FRAME INNER CHORD AND WEB AT STR 26R. REPAIRED CHORD AND WEB (P/N 65B07936-328) PER EA 66-110297.Oct 26, 1996 · N611US · Boeing 747251B · Fuselage Main, FrameSDR 9623766631Floorbeam · crackedDURING P-CHECK, FOUND A CRACK IN THE BS 460 UPPER DECK FLOORBEAM WEB AT RBL 55. REPAIRED WEB (P/N 65B10933-34) PER EA 66-120426.Oct 24, 1996 · N631US · Boeing 747251B · Fuselage Main, Floor BeamSDR 9622616626Battery · dischargedDURING LINE CHECK, FOUND A-ZONE FLOOR PATH AND STAIR EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY, OPERATIONAL CHECK GOOD.Oct 23, 1996 · N626US · Boeing 747251B · Emergency LightingSDR 9622266612Engine · flamed outDURING CRUISE, THE NR 3 ENGINE EXPERIENCED FLAME-OUT. FLAME-OUT OCCURRED WHILE FUEL MANAGEMENT PROCEDURES WERE BEING ACCOMPLISHED. NO OVERTEMP OCCURRED AND RELIGHT WAS SUCCESSFUL ON SECOND ATTEMPT AT FL250. ENGINE OPERATION WAS NORMAL FOR THE REMAINDER OF TOct 17, 1996 · N612US · Boeing 747251B · Engine (Turbine/Turboprop)SDR 9622076636Wire · shortedDURING TAKEOFF, THE LANDING GEAR RED UNSAFE LIGHT ILLUMINATED AND THE LANDING GEAR ALTERNATE DISCONNECT/CONNECT CIRCUIT BREAKER POPPED. AIRCRAFT ABORTED TAKEOFF AND RETURNED TO THE GATE. REPLACED SHORTED WIRE ON LEFT WING LANDING GEAR, OPERAITONAL CHECK GOODOct 15, 1996 · N636US · Boeing 747251B · Landing Gear System WiringSDR 9627716611Skin · corrodedDURING CHECK, FOUND CORROSION ON SKIN INTERNAL DOUBLER. REPLACED DOUBLER PER EA 66-120221.Oct 13, 1996 · N611US · Boeing 747251B · Fuselage Main, Plate/SkinSDR 9621836637Coupling · crackedDURING TAKEOFF AND CLIMB, THE NR 1 ENGINE EPR AND N1 DROPPED AND THE FIRE LIGHT ILLUMINATED. SHUT DOWN NR 1 ENGINE AND RETURNED TO DTW. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. REPLACED THE 15TH STAGE COUPLING, HIGH STAGE VALVE, TWO DUCTS FORWARD OF HIGH POct 12, 1996 · N637US · Boeing 747251B · Pneumatic Distribution SystemSDR 9621656613Bulkhead Fitting · crackedDURING P-CHECK, FOUND A CRACK IN THE NR 3 PYLON AFT ENGINE MOUNT BULKHEAD TO FRONT SPAR ATTACH FITTING AT NACELLE STA 221. REPLACED FITTING (P/N 65B91314-3).Oct 2, 1996 · N613US · Boeing 747251B · Nacelle/Pylon, Bulkhead/Firewall
Back to Boeing 747-251B