JASC 2450
Service difficulty reports · 872
Reports filed under 2450 · AC Power Distribution System, newest first.
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 jasc_code = '2450' 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.
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 jasc_code = '2450' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR CA090116003Switch · worn(CAN) ESSENTIAL POWER WAS LOST AT ROTATION DURING TAKE-OFF. SECOND OFFICER WAS UNABLE TO ESTABLISH ESSENTIAL POWER WHEN CYCLED FROM GENERATOR 3, TO GEN 1, TO GEN 2. STANDBY POWER WAS SELECTED. FLIGHT CREW DECLARED AN EMERGENCY AND RETURNED TO THE AIRPORT OFSDR UALA200901090099Bpcu · failedJUST PRIOR TO REACHING CRUISE, BOTH UTILITY BUSSES TRIPPED. SINGLE RESET OF BOTH UTILITY BUSES NO HELP. UTILITY BUSSES RESET 4 TIMES, NO HELP. REPLACED BPCU. SYS OPS NORMAL, ALL BUSSES RESET AND FUNCTION NORMALLY.SDR R61A20080051Module · failedCREW REPORTED ON APPROACH, RECEIVED A MAU2B FAIL MESSAGE ON EICAS AND A RT BRAKE FAULT. CREW FOLLOWED QRH PROCEDURES, DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT SYSTEM AND REMOVED AND REPLACED MAU POWER MODULE AND COMPLETED OPSDR DLM88081375Relay · failedDUE TO LONG HISTORY OF BREAKERS POPPING AND SOME ELECTRICAL ODOR IN CABIN, WE LOOKED FOR AND FOUND CONNECTORS AND CURRENT LIMITERS ON THE T1,T2,AND T3 SIDE OF THE AC BUSS TIE RELAY WITH SEVERE HEAT DAMAGE. REPLACED AC BUSS TIE RELAY TWO FEEDER WIRES AND CURRESDR K11A2008102291501Terminal Block · brokenTERMINAL BLOCK AT STA FS 146 FLOORBEAM BROKE, AFTER INVESTIGATION FOUND 2 WIRES DAMAGED. REPLACED WIRE FROM TERMINAL NR 1 TO THE T1 POSITION ON THE LEFT APU BUSS RELAY. ALSO REPLACED TERMINAL END ON THE SECOND ATTACHING IN THE NR 1 POSITION OF THE TERMINAL BSDR USAABB08161Circuit Breaker · failedFLT 119- IN CRUISE, LT AC BUSS FAILED. GENERATOR RESET DID NOT CORRECT CONDITION. ATTEMPTS TO POWER LT AC BUSS FROM OTHER POWER SOURCES NOT SUCCESSFUL. FLT DIVERTED & LANDED WITHOUT INCIDENT. REPLACED GROUND POWER CONTACTOR, CURRENT XFORMERS, & BUSS TIE C/BSDR ABXA080240Current Limiter · failedCREW REPORTED SMOKE COMING FROM CIRCUIT BREAKER PANEL BEHIND CAPTAINS SEAT WHEN GROUND POWER WAS CONNECTED TO ACFT. FOUND GROUND SERVICE BUS CONTROL AND A & C PHASE GROUND SERVICE BUSS BREAKERS TRIPPED. REPLACED BLOWN CURRENT LIMITERS FOR CROSS TIE RELAY T2.SDR 2008FA0000532Buss Bar · loosePILOT REPORTED THE NR 2 ALTERNATOR WAS INTERMITTENT. WHILE TROUBLESHOOTING THE NR 2 ALTERNATOR, FOUND 13 SCREWS LOOSE AND 1 SCREW MISSING ON THE COPPER CIRCUIT BREAKER BUSS BAR. THE 1 SCREW MISSING WAS ON THE NR 2 ALTERNATOR CIRCUIT BREAKER BUSS FEED. PROBASDR C2XA08IA178Contactor · malfunctionedIAH - FLIGHT 2350, THE CREW REPORTED THAT AT FL360, THE AIRCRAFT LOST ALL ELECTRICAL POWER FOR 10 SECONDS, POWER RETURNED FOR 2 SECONDS, WAS INTERMITTENT FOR 2 MINUTES WITH T/O CONFIG, AUTOPILOT, FLAPS, STALL WARNINGS. THE POWER WAS FINALLY RESTORED AFTER THRSDR UPS08M52610Circuit Breaker · trippedINSPECTION TYPE:N/A MULTIPLE CIRCUIT BREAKERS TRIPPED & WILL NOT RESET. WORK ACCOMPLISHED PER EO MD11-2400-29911-C. REPLACED DAMAGED WIRE BUNDLE AND RELATED COMPONENTS.SDR IJA2008F00001Circuit Breaker · failedON MAY 17, 2008, THE PILOT REPORTED ELECTRIC SYS FAILURE AND MADE A PRECAUTIONARY LANDING DUE TO THE FAILURE, IN A FIELD. ON INSP OF THE ACFT, MAINT PERSONNEL FOUND THE ACFT BATTERY DEAD, INSTALLED NEW/ SERVICEABLE BATTERY. GROUND RAN AC TO TEST SYS. ON STSDR UPS08552206Circuit Breaker · poppedATB - PASSING 17000 FT, LOST THE LT AC BUS WITH NUMEROUS ASSOCIATED INDICATIONS, ITEMS LOST IN FLIGHT ARE EUIP OHT, LAFT FUEL BOOST PUMP, RT FWD BOOST PUMP, PROB HEAT, CAPTS PITOT, L AUX PITOT, L AOA AND SYM GEN FOR BOTH CAPT/FO AIR ABORT. TROUBLESHOT PER WD SDR A6WA200840380Buss · shortedRECIEVED MASTER CAUTIOIN AC SERVICE BUSS, RAN QRH AND CONTINUED IN ARI AND ON GROUND, MESSAGE IS INTERMITTENT, POSSIBLE ELECTRICAL ODOR IN COCKPIT, PULLED CIRCUIT BREAKER PANEL 2, S2. R&R ACFT SERVICE BUS SENSE RELAY K5XD REF WDM 24-50-00. OPS CHECK GOOD IAWSDR AALA200801019Circuit Card · faultyORD INFLIGHT T50/20APR DFW TO LHR - CREW REPORTED NUMEROUS STATUS MESSAGES. DECLARED EMERGENCY AND LANDED ORD WITHOUT INCIDENT. REPLACED BOTH 629 ARINC LEFT CARDS IN LEFT AND RIGHT SYSTEM CARD FILES. SYSTEM GROUND CHECKED NORMAL OPERATION.SDR DJFA2008042Circuit Breaker · arcedCREW EXPERIENCED A STRONG ELECTRICAL SMELL IN THE COCKPIT DURING FLIGHT. MAINT FOUND THE 15 AMP STANDBY POWER CIRCUIT BREAKER ARCING. THE CIRCUIT BREAKER WAS REPLACED. FUNCTIONAL CHECKS WERE GOOD AND THE AC WAS RETURNED TO SERVICE.SDR CA080409005Circuit Breaker · inoperative(CAN) WHILE DOING A PREFLIGHT CHECK DURING FLIGHT TRAINING IT WAS NOTED THAT THE LT BOOST PUMP CIRCUIT BREAKER WAS NOT ABLE TO BE CYCLED. THE CIRCUIT BREAKER WAS REMOVED AND REPLACED. AFTER GOING THROUGH THE REST OF THE CIRCUIT BREAKER PANEL IS WAS NOTED THAT SDR 2008UALA01381Control Unit · faultyWORKING CHRONIC GALLEY PWR LOAD SHED. *S/D* AFTER EXTENSIVE TROUBLESHOOTING FOUND FAULTY ELECTRICAL LOAD CONTROL UNIT. REPLACED ELCU (M225) FWD GALLEY, PER MM25-31-03, OPS CHECKS NORMAL. AC OK FOR SERVICE.SDR 08FDEA00691Rccb · failedT/O ROLL NR 4 DU BLANKED, NR 1 FMS DISP "TIMEOUT RESELECT" NR 3 MCDU BLANKED, OCCURRED PRIOR TO V, CONTINUED T/O. AT 180 NM FROM HNL RECEIVED MANY LVL 1 AND LVL 2. ALERTS MOST SIGNIFICANT LVL 1 "BUS AC 1 OFF" AND LVL2 FUEL QTY FAULT", LVL 2 SELECT FADEC ALTNSDR SB08005Buss Tie · failedCLT FLT 1054 - AIRCRAFT DEPARTED WITH THE LEFT GENERATOR ON MEL AND THE APU GENERATOR SUPPLYING LEFT AC BUSS. DURING APPROACH INTO CLT, THE AIRCRAFT LOST THE LEFT AC BUSS (DURING ILS COUPLE UP) AND THE APU WOULD NOT RESTORE LEFT BUSS POWER. FLIGHT LANDED WISDR RAIA00801022Control Panel · faultyFLT 5576 - GSO - EMERGENCY LIGHTS NOT ARMED MESSAGE ON THE EICAS FOLLOWED BY AN EMERGENCY ABNORMAL MESSAGE. MAINTENANCE REMOVED AND REPLACED THE ELECTRICAL CONTROL PANEL. OPS CHECKED GOOD.SDR 2008UALA00222Insulator · missingP300 BACK PLANE AUXILARY POWER BREAKER (APB L9-C24335) HAS INSULATOR MATERIAL MISSING, ALSO C PHASE (BLUE) POWER FEEDER WIRE WAS DISCOLORED. RESISTANCE READING AT L9 C24335 C2 EXCEEDED LIMITS. SUSPECT SHORT AT POWER PANEL P300. REPLACED P300 AUX PANEL AND PESDR 2008UALA00075Buss Tie · malfunctionedACFT HAS NUMEROUS GALLEY PWR AND LOAD SHED ISSUES. REPLACED BPCU M116 SEE PTT 7292007, OPS CHECK GOOD.SDR C2XA08IA011Buss · burnedIAH - FLIGHT 2963, DURING PRE-FLIGHT INSPECTION THE CREW REPORTED A FAINT ELECTRIC BURNING SMELL. MAINTENANCE REMOVED AND REPLACED THE RIGHT HAND DC ESSENTIAL BUSS, OPERATIONALLY CHECKED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.SDR BSYA200700017Circuit Breaker · malfunctionedEN ROUTE FROM SDF TO MDW AIRCRAFT DIVERTED TO DPA BECAUSE OF HIGH WINDS. UPON ARRIVING AT DPA, LOST ALL AVIONICS. TRIED TO RESET NR 1 & NR 2 CIRCUIT BREAKERS, NO HELP THEN STARTED TO SMELL SMOKE. FOUND NR 1 BUSS CIRCUIT BREAKER BAD AND P10 CONNECTOR HAD A BSDR 2007FA0001056Circuit Breaker · inoperativePILOT SQUAWKED ON INTERMITTENT SWITCH. THE SWITCH WAS DISASSEMBLED AND INSPECTED. THE BONDED INTERNAL CONDUCTOR HAD SEPARATED FROM CONTACTOR. A TOTAL OF 20 SWITCHES IN OUR FLEET, HAVE ALREADY BEEN REPLACED. UPON INSPECTION, NUMEROUS SWITCHES HAD SIMILAR PRSDR CA071204002Circuit Breaker · cracked(CAN) CB CRACKED. (TC NR 20071204002)SDR SWAA075185Circuit Breaker · faultyNR 1 GENERATOR TRIPPED OFF-LINE RESET, THEN TRIPPED AGAIN. BOTH PILOTS SMELLED ELECTRICAL BURNING ODOR IN COCKPIT. REMOVED AND REPLACED BUSS TIE BREAKER PER MM.SDR MASA200700678Controller · malfunctionedASH FLT 7276 PHL-IAD - PILOT REPORTED THAT THE ADG DEPLOYED IN FLIGHT AT 150 KNOTS FOR A DURATION OF 45 MINUTES. MX REPLACED ADG CONTROLLER.SDR AALA20071858Gcu · inoperativePDX INFLIGHT T9663/04OCT SEA TO SFO - LEFT GENERATOR FAILED AND RIGHT GENERATOR ON MEL. ONLY AUXILIARY POWER UNIT GENERATOR OPERATING. LANDED PDX WITHOUT INCIDENT. REPLACED LEFT GENERATOR CONTROL UNIT BUS CONTROL UNIT AND LEFT BUS POWER RELAY. SYSTEM GROUNDSDR RAIA00707037Contactor · inoperativeFLT NR 5521 - STL - AFTER TAKEOFF, CREW RECEIVED AN ELECTRICAL EMERGENCY ABNORMAL INDICATION ON THE EICAS. MAINTENANCE REMOVED AND REPLACED THE ESSENTIAL BUS CONTACTOR.SDR 07FDEA02375Rectifier · failedFOUND NR 1 TRANSFORMER RECTIFIER FAULTED ON MAINT PANE (MULTIPLE FAULTS IN FLT- TRANSPONDER, AUTO-THROTTLE, PITCH TRIM). REMOVED AND REPLACED NR 1 TRANSFORMER RECTIFIER IAW AIRBUS M/M 24-32-11-4. OPS CHECKED NORMAL PER AIRBUS M/M 24-32-00-5. ALL OTHER FAULTSDR 07FDEA01733Electrical Sys · contaminatedAT ROTATION, ESSENTIAL POWER FAIL LIGHT CAME ON MOMENTARILY THEN WENT OUT WITH NR 1 GENERATOR FAIL. UNABLE TO BRING NR 1 BUSSSM20ACD200A2 ON LINE. LOST THE FOLLOWING: CAPT'S INST LIGHTS, PITCH TRIM, ASYM FLAPS, NR 1 EPR WITH PACKS TRIPPED, NR 1 OIL TEMP WESDR CA070405009Relay · burned(CAN) DURING CRUISE IB, FLIGHT CREW NOTICED AN AC ESSENTIAL BUS MESSAGE FOLLOWED BY A POPPING SOUND AND A BURNED ODOR ON THE FLT DECK. LOOKED AT AC ELECTRICAL SYNOPTIC PAGE AND EVERYTHINGS WAS NORMAL BUT THE F/A NOTICED THAT THE EMERGENCY LIGHTS WERE ON. FLIGHSDR HALA0700114Bpcu · failedBTB. LOSS L AND R UTIL BUSSES ON TAXI OUT. CHECK BPCU, NO TEST. DOWN POWERED AND CHECK BITE BPCU FOUND REPLACE BPCU. REPLACED BPCU PER AMM 24-41-03-004-001. OPS CHECK, BITE CHECK GOOD.SDR A6WA200740111Relay · failedON AC ELECTRICAL SYNOPTIC PAGE ADG BUS DISPLAYED IN WHITE. AC1 AND AC2 BUS SHOW WHITE LINES TO ESS BUS, ESS BUS IS GREEN. REMOVED AND REPLACED K2XD RELAY IAW AMM 24-51-31. OPS CHECK GOOD. (K)SDR SWIA200717867Relay · noisyFOUND NOISE FROM RELAY IN RIGHT SIDE ELEC BAY, LAV SMOKE ALARM WENT OFF ALONG WITH OVERHEATED SMELL IN CABIN. REPLACED RELAY K0194, NR 2 SHOCK RELAY. OPERATIONAL CHECKS GOOD.SDR DL76L070055Circuit Breaker · failedDUE RT A/C BUSS FAILURE DURING TAXI. T/S PER SSM NTF. REMOVED AND REPLACED AUX POWER BREAKER C905 PER MM. NORMAL RT/LT APU BUSS ISOLATION OPS NORMAL.SDR SB06126Circuit Breaker · failedPBI FLT1286 ON CLIMBOUT FROM PBI, AT 1,300 FEET AGL, THE CAPTAIN REPORTED LOST ALL OF HIS PRIMARY FLIGHT INSTRUMENTS. CONTROL OF AIRCRAFT WAS GIVEN TO THE FIRST OFFICER, WHEREAS, HIS INSTRUMENTS FUNCTIONED PROPERLY. FLIGHT RETURNED TO FIELD AT PBI AND LANDEDSDR N93A20061221Contactor · faultyACRID SMELL IN COCKPIT DURING PREFLIGHT. MAINTENANCE DETERMINED ODOR WAS FAULTY AC CONTACTOR.SDR USAASB06122Panel · shortedPHL - SMOKE WAS OBSERVED TO BE COMING FROM THE FIRST OFFICER'S CIRCUIT BREAKER PANEL. MAINTENANCE REPLACED THE BUSS PROTECTION PANEL. OPERATIONALLY CHECKS OK.SDR 200629091Circuit Card · faultySPDA FAIL IN CRUISE FLIGHT, LATER RECEIVED AMS FAIL AND CARGO FWD AND AFT FIRE DET FAIL MESSAGES. CREW ALSO RECEIVED NUMEROUS ADDITIONAL MESSAGES ON APPROACH AND AFTER LANDING. STEERING WAS NOT AVAILABLE AFTER CREW SHUT DOWN NR 2 ENGINE, TOWED TO THE GATE. SDR DL76L060628Bpcu · failedAFTER PUSHBACK STARTED ENGINES LOST GALLEY POWER. R/R BPCU RAN ENG ALL OPS NML.SDR AWXA200601253Power Supply · odorSAL - MAINTENANCE CHECK, ELECT ODOR IN FLT DECK 10 MIN AFTER ALL LIGHTS ILLUM. FOUND DEFECTIVE P5 - 4 PANEL, ELEC DOOR NOTED. REPLACED, NO ODORS NOTED. CORRECTED BY APONTE, REF PREV LOG PG NR 7306147.SDR TRAX200600480Buss · warning messageAC ESS BUSS CAUTION MSG AND EMERGENCY LIGHTS ILLUMINATED.SDR AALA20060380Control Unit · malfunctionedRDU - SEVERAL CIRCUIT BREAKERS POPPED AFTER TAKEOFF. LANDED RDU WITHOUT INCIDENT. SECURED SEVERAL LOOSE WIRES ON RELAY. REPLACED BUS CONTROL UNIT AND TWO A PHASE RIGHT BUS CIRCUIT BREAKERS AND ONE A PHASE GROUND SERVICE BUS POWER CIRCUIT BREAKER. SYSTEM GRSDR 13505162748YCircuit Breaker · defectiveCREW REPORTED AVIONICS MASTER SWITCH INOP. MX CHANGED CIRCUIT BREAKER SWITCH.SDR 13505276875DCircuit Breaker · defectiveCREW REPORTED AVIONICS MASTER SWITCH INOP. MX CHANGED CIRCUIT BREAKER SWITCH.SDR 2006UALA01081Circuit Breaker · trippedDIVERTED TO ORD DUE TO 4 POPPED GALLEY CIRCUIT BREAKERS. [06-29-07] RESET CB S' AND TESTED PER MM, COULD NOT DUPLICATE. OPS CHECKS OK. NO FURTHER OCCURENCES OF PROBLEM.SDR 2006FA0000601Fuse · failedFLIGHT CREW REPORTED NO BATTERY VOLTAGE INDICATION ON VOLTMETER WITH ALL DC BUSSES POWERED. TROUBLESHOOTING FOUND AIRCRAFT WOULD NOT GO INTO EMERGENCY POWER OR PERFORMED FEEDER FAULT TEST. FOUND 5A MICROFUSE F105 CONNECTED TO K005 EMERGENCY BUSS POWER RELAY SDR 13505361376GCircuit Breaker · defectiveCREW REPORTED AVIONICS MASTER SWITCH INOP. MX CHANGED CIRCUIT BREAKER SWITCH.
Back to JASC 2450