JASC 2434
Service difficulty reports · 849
Reports filed under 2434 · DC Generator-Alternator, 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 = '2434' 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 = '2434' 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 2006FA0001079Alternator · separatedDURING FLIGHT, PILOT NOTICED A LOUD BANGING NOISE FROM UNDER ENGINE COWLING PILOT PROCEEDED TO LAND. AFTER LANDING, MAINTENANCE DEPARTMENT. REMOVED COWLING TO FIND THIS ALTERNATOR SEPARATION/ FAILURE. NO OTHER COMPONENTS WERE DAMAGED. INSPECTION PRIOR TO TSDR CA070327004Alternator · failed(CAN) BURNING ELECTRICAL SMELL IN COCKPIT, LOSS OF CHARGING SYSTEM. (TC NR20070327004)SDR HNAA0600079Generator · malfunctionedNR 2 DC GEN FAILED AFTER LIGHTNING STRIKE WOULD NOT RESET. GROUND RAN AIRCRAFT AFTER SHUTDOWN FOUND DC GEN TO BE OK. ALL LOADS ARE NORMAL.SDR FFKA111Alternator · inoperativeAIRCRAFT EXPERIENCED A TOTAL ELECTRICAL FAILURE 5 MILES FROM CAE. THE PILOT RECEIVED LIGHT GUN SIGNALS AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT THE ELECTRICAL SYSTEM. FOUND A BAD ALTERNATOR, COULD NOT DUPLICATE ELECTRICAL FAILURE.SDR MALA060356Generator · malfunctionedAT 11K FT HAD A LEFT DC GEN LIGHT ILLUMINATE AND A BUS TIE CONNECT LIGHT ILLUMINATE. RAN QRH. BOTH LIGHTS STAYED ILLUMINATED. AIR RETURNED TO DTW. REMOVED AND REPLACED LT DC GEN AND GCU. ALL CHECKS GOOD.SDR 2006FA0000546Bracket · crackedALTERNATOR BRACKET FOUND CRACKED. NEW PART IS OF A HEAVIER DESIGN BUT RETAINS THE SAME PART NUMBER.SDR 2006FA0000585Alternator · shortedALTERNATOR WENT SEVERE OVER VOLT DUE TO INTERNAL SHORT IN THE FIELD WINDINGS. SHORT FRYED THE ACU AND BOSS 1 DIODE (AVIONICS BUSS) DUE TO BADLY DAMAGED ACU, ACU COULD NOT GET ALTERNATOR OFF LINE. DUE TO BOSS 2 DIODE FAILURE AVIONICS BUSS WAS HOT WITH AVIONICSDR CA060509004Washer · meltedWHILE CONDUCTING A VISUAL INSPECTION OF THE PORT STARTER GENERATOR GROUND POINT SEALANT REMOVED. IT WAS DISCOVERED THAT THE ALUMINUM WASHERS, P/N AN960JD616, BETWEEN THE GROUND POINT ATTACH BOLT AND THE BRACKET HAD MELTED. THE GROUND POINT BRACKET SHOWED EVISDR QXEA200601015Starter Gen · failedSEA FLIGHT NR 2315, NR 2 DC GEN CAUTION ON LANDING. RESET PER CHECKLIST, BUT CAME ON AGAIN. MAINTENANCE REMOVED AND REPLACED NR 2 DC STARTER/GENERATOR IAW MTC 6243101. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.SDR CA060920007Generator · shorted(CAN) IN CLIMB BOTH GENERATORS TRIPPED OFF LINE AND WOULD NOT RESET. TROUBLE SHOOTING REVEALED AN INTERNAL SHORT IN THE NR 2 GENERATOR THAT CAUSED BOTH GENERATORS TO TRIP THROUGH THE BUSTIE. SUBMITTER FILE IS ADR 150. (TC NR 20060920007)SDR 2006FA0000426Alternator · failedALTERNATOR FAILED, PLATE SCREWS FELL OUT. (K)SDR 2006FA0000393Housing · wornTHIS ALTERNATOR HAS -0- HOURS TIME-IN-SERVICE. DURING INSPECTION, PRIOR TO SALE, IT WAS DISCOVERED THAT THE ROTOR HAD EXCESSIVE LATERAL MOVEMENT AS A RESULT OF EXCESSIVE WEAR OF THE DRIVE END HOUSING BEARING BORE. THIS CONDITION WOULD HAVE LEAD TO PREMATURE SDR 2006FA0000337Alternator · burnedOUTPUT POST WAS LOOSE AND BURNED. TERMINAL ON OUTPUT WIRE GOING TO BOSS BAR WAS BURNED, MELTED, AND SEPARATED FROM ALTERNATOR. (K)SDR MWEA060038Relay · inoperativeDC BUSS OFF ANNUNCIATOR ILLUMINATED. REMOVED AND REPLACED RELAY.SDR IBI2006F00000Alternator · failedALTERNATOR FAILED AT 18.51 HOURS SINCE OVERHAUL. WITH FAILURE, AMMETER WAS STUCK AT 35 AMPS INDICATED. VOLTAGE REGULATOR WAS ALSO DISABLED FROM ALTERNATOR FAILURE. INSPECTION OF ALTERNATOR REVEALED AN ASSY TYPE SCREW LODGED IN BETWEEN STATOR AND HOUSING SHOSDR CA060315004Relay · failedA/C SHUT DOWN AFTER FLT, CREW REPORTED NR 2 GENERATOR WARNING LIGHT DID NOT ILLUMINATE. A/C WAS RUN FOR TROUBLESHOOTING, DURING WHICH TIME GEN FUNCTIONED INTERMITTENTLY. WHEN ENGINES WERE SHUT DOWN, SMOKE BEGAN TO EMANATE FROM THE ELECTRICAL BAY IN THE CABINSDR 2006FA0000228Housing · out of toleranceTHIS ALTERNATOR HAS 0 HOURS. DURING INSPECTIONOF THIS UNIT PRIOR TO INSTALLING ON AIRCRAFT, IT WAS DISCOVERED THAT THE ROTOR HAD EXCESSIVE SIDE PLAY AND WAS ALLOWING THE ROTOR TO RUB AGAINST THE STATOR LAMINATIONS. THE DRIVE END BEARING BORE HAS EXCESSIVE WESDR 2006FA0000227Housing · wornTHIS ALTERNATOR HAS 0 HRS TIME IN SERVICE. DURING INSPECTION OF THIS UNIT. IT WAS DISCOVERED THAT THE DRIVE-END BEARING BORE WAS .006, OVERSIZE AND THE BEARING WAS VERY LOOSE IN THE BEARING BORE. THIS END FRAME SHOULD HAVE BEEN REJECTED DURING THE OVERHAUL SDR HBT2006F00000Alternator · inoperativeALTERNATOR BECAME INOPERATIVE IN FLIGHT. FLIGHT CONTINUED TO DESTINATION. ALTERNATOR REMOVED AND DAMAGE WAS FOUND ON CRANKSHAFT DRIVE GEAR AND ALTERNATOR GEAR. CRANKSHAFT GEAR BOLTS AND LOCKTABS WERE FOUND IN OIL SUMP ON ENGINE TEAR DOWN FOR METAL CONTAMINSDR AU510002064Alternator · failed(AUS) ALTERNATOR FAILED. INVESTIGATION FOUND DEFECTIVE INSULATORS AND BATTERY POST TO ALTERNATOR BODY ARCING. (CASA NR 510002064)SDR AU510002032Bearing · looseLT ENGINE ALTERNATOR DRIVE END BEARING SPINNING IN HOUSING. ALTERNATOR ROTOR RUBBING ON STATOR. LOSS OF BEARING GREASE.SDR AU510001888Alternator · failedALTERNATOR FAILED. FOLLOWING REMOVAL IT WAS NOTICED THAT THE ALTERNATOR DID NOT HAVE A DATA PLATE ATTACHED IDENTIFYING EITHER SERIAL NUMBER OR PART NUMBER.SDR AU510001859Brush Block · damagedALTERNATOR HAD HIGH RESISTANCE IN BOTH BRUSH BLOCK CONNECTIONS.SDR AU510001779Alternator · faultyLT AND RT ALTERNATORS REMOVED FROM AIRCRAFT FOR INTERNAL INSPECTION FOLLOWING PURCHASE OF AIRCRAFT. BOTH ALTERNATORS WERE FOUND TO CONTAIN NUMEROUS DEFECTS. ALTERNATORS HAD ONLY 12 HOURS TSO. ALTERNATORS WERE `KELLY AEROSPACE` ITEMS.SDR AU510001762Alternator · failed(AUS) ALTERNATOR FAILED. INVESTIGATION FOUND STATOR TO DIODE FEEDER WIRES CHAFING ON HOUSING AND SHORTED. BRUSH WIRE TAIL FOUND TO BE RUNNING ON STATOR BRUSH RING. (CASA NR 510001762)SDR AU510001730Bearing · collapsedRT ENG DRIVEN ALT FAILED. ALT DRIVE COUPLING SHEARED AND ALT FRONT BEARING COLLAPSED. RED ELASTOMER MAT`L FROM ALT DRIVE COUPLING AND MINOR METALLIC PARTICLES VISIBLE INTERNALLY THRU ALT ATTACHMENT PORT. ALT DISASSEMBLED AND INSPECTED. FRONT BEARING SERIOUSDR CA051017001Sensor · malfunctionedTHE NR 2 DC GENERATING SYSTEM WENT OFF LINE AFTER DEPARTING YFB. THE AIRCAFT RETURNED TO POINT OF DEPARTURE WHERE MAINTENANCE DETERMINED THE NR 2 HALL EFFECT SENSOR HAD FAILED. THE SENSOR WAS REPLACED AND THE AIRCRAFT RETURNED TO SERVICE.SDR S2YA05059Generator · inoperativeSHORTLY AFTER DEPARTURE OF FLIGHT, THE LT GENERATOR FAILED. SEVERAL ATTEMPTS TO RESET THE GENERATOR WHERE UNSUCCESSFUL. THE CREW PERFORMED AN AIR-TURN-BACK. MAINTENANCE REPLACED THE LT DC GENERATOR AND WITH OPERATIONAL CHECK GOOD THE AC WAS RETURNED TO SERVSDR 2005FAA09001Alternator · dislodgedTHE ALTERNATOR, OVERHAULED UNIT, WAS IN PIECES WHEN THE AIRCRAFT LANDED. THE BACK HALF OF THE ALTERNATOR WAS OFF, THE STATOR WAS CHEWED UP. THE END BEARINGS WERE IN PLACE AND TURNED LIKE A NEW BEARING WITH GREASE IN THEM.SDR CA051011005Generator · separated(CAN) GENERATOR WENT OFF LINE IN CLIMB OUT. AIRCRAFT RETURNED TO BASE. GENERATOR REPLACED WITH OVERHAULED UNIT. SYSTEM TESTED SATISFACTORY.SDR HNAA0500081Generator · malfunctionedDC BUSS FAULT ILLUMINATED IN FLIGHT FOLLOWED BY NUMEROUS OTHER CAUTION LIGHTS, AUX INV RUDDER FULL PRESS, GPWS, PAX DOOR, BAG DOOR, FWD EXIT DOOR, SERVICE DOOR. REMOVED AND REPLACED NR 1 DC GENERATOR.SDR 2005FA0001204Alternator · seizedAIRCRAFT WAS RUN UP PRIOR TO 50 HOUR INSPECTION AND NO DEFECTS WERE FOUND DURING RUN UP. AFTER INSPECTION, PERFORMED POST INSPECTION RUN AND NOTICED A LOUD SQUEALING NOISE AND SMOKE COMING FROM ENGINE COMPARTMENT. ENGINE WAS SHUTDOWN AND INSPECTION REVEALED THSDR MAC8501Generator · failedON TAKEOFF FROM POA, THE NR 2 GENERATOR OVERHEAT LIGHT ILLUMINATED. THE PIC DECLARED AN EMERGENCY AND RETURNED TO POA WITHOUT INCIDENT. THE A/C LANDED 100 LBS OVERWEIGHT WITH A SMOOTH LANDING. AFTER LANDING AND TAXIING TO THE RAMP, THE RIGHT NACELLE WAS INSSDR CA051101006Alternator · failed(CAN) REMOVED ALTERNATOR S/N D120708 SEPARATED AT 545.2 TSO AND 12 MONTHS LATER INSTALLED S/N 032530 AT 9 AUG. 05 AND REMOVED IT 11 SEPT.05 156.6 HOURS SINCE REBUILD, SEPERATED AGAIN AND GOT WARRANTY ON IT. THIS PROBLEM IS MORE COMMON THAN NOT IN THE INDUSTRY.SDR 2005FA0001080Alternator · failedAIRCRAFT ENGINE RUNNING AND ALTERNATOR SWITCH SELECTED TO (ON) POSITION, ALTERNATOR RED ANNUCIATOR LIGHT (ON) AND LOAD METER SHOWING ZERO LOAD BEING CARRIED BY ALTERANTOR. AC OIL TEMP AND OIL PRESSURE INDICATIONS DROPPED TO ZERO IN FLIGHT AS BATTERY VOLTAGE DSDR MASA200500519Generator · failedNR 1 DC GEN LIGHT IN FLIGHT. NR 1 DC GENERATOR REPLACED.SDR CA050706006Alternator · arced(CAN) DURING APPROACH INTO YYC, THE PILOT NOTED A SHORT, MODERATE BUZZING NOISE IN HEADSET. THERE WAS NO SIGN OF SMOKE BUT THE AMMETER INDICATED ZERO AMPS. THE PILOT LANDED WITH NO OTHER INDICATIONS. THE SYSTEM WAS INSPECTED AND FOUND THAT THE BATTERY STUD SDR QXEA200501092Generator · inoperativeNR 2 DC GENERATOR CAUTION ILLUMINATED. CYCLED ON AND OFF TWICE BEFORE RETURNING TO GATE. MAINTENANCE REMOVED AND REPLACED NR 2 DC GENERATOR. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.SDR CA050704004Housing · loose(CAN) PILOT REPORTED HEARING A NOISE AND THEN NOTICED HIS ALTERNATOR WAS OFF LINE. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THAT THE HOUSING HALVES ON THE ALTERNATOR WERE QUITE LOOSE. REPLACE ALTERNATOR STILL NO CHARGE. FURTHER REPLACED SDR MALA050417Generator · overtempLT DC GENERATOR OVER TEMP CAUTION LIGHT ILLUMINATED. CREW TURNED BACK TO LBE FOLLOWING OVER TEMPERATURE INDICATION OF THE DC GENERATOR. LANDING WAS UNEVENTFUL. REPLACED GENERATOR.SDR RAIA00505010Generator · inoperativeFLT 5657 - STL - RIGHT GENERATOR INOP. MAINTENANCE REMOVED AND REPLACED NR 2 GENERATOR.SDR CA050428004Generator · fireMAINTENANCE WAS DOING A GROUND RUN, NR 2 ENGINE WAS STARTED FIRST THEN NR 1, AFTER BOTH ENGINES WERE WARMED UP A SMALL LOAD WAS PUT ON THE GENERATORS. FLAMES WERE NOTICED COMING FROM THE NR 2 ENGINE GENERATOR EXHAUST COOLING VENT. THE ENGINE WAS SHUT DOWN ANSDR QXEA200501013Generator · malfunctionedAFTER ENGINE START, DC BUSS CAUTION LIGHT ILLUMINATED. RESET BUSS OK. NR 2 GENERATOR WOULD NOT RESET. MX STARTED NR 1 AND 2 ENGINES, DESELECTED EXTERNAL POWER SWITCH. TURNED NR 2 GENERATOR OFF, CAUTION LIGHT ILLUMINATED. TURNED NR 2 GENERATOR ON, LIGHT WENSDR PNSA050402Alternator · malfunctionedDURING CRUISE, ODOR OF SOMETHING BURNING AND AT SAME TIME NOTICED 0 CHARGE ON AMMETER. MAINTENANCE FOUND ALTERNATOR BAD AND INSPECTED WIRING HARNESS WITH NO DEFECTS FOUND. CHANGE ALTERNATOR AND AIRCRAFT RETURNED TO SERVICE.SDR CA050426002Sensor · failed(CAN) AFTER DEPARTING YZF, THE NR 2 DC GENERATR WENT OFF LINE AND THE AIRCRAFT RETURNED TO POINT OF DEPARTURE. MAINTENACE DETERMINED THE NR 2 HALL EFFECT SENSOR HAD FAILED. THE UNIT WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE AFTER SATISFACTORY FUNSDR 45101041005Line · leakingTHE PILOT REPORTED THAT ABOUT 3 TO 4 MILES OUT WHEN THE INDICATION APPEARED. DIDN'T DISCHARGE A BOTTLE OR SHUT DOWN THE ENGINE. AFTER CLEARING THE RUNWAY, THE INDICATION EXTINGUISHED ABOUT 1 MINUTE AFTER THE ENGINE WAS SHUT DOWN. AFTER DEPLANING THEY SAW HYSDR MAC5403Generator · overtempEN ROUTE THE LEFT GENERATOR INDICATED AND OVERHEAT CONDITION. THE CREW MADE AN EMERGENCY IN POA FOR REPAIRS.SDR RAI00504012Generator · failedSTL - GENERATOR NR 1 OFF BUS AFTER START. RESET GENERATOR NR 1 SWITCH, STILL NO GENERATOR AMPS. MAINTENANCE REMOVED AND REPLACED NR 1 GENERATOR.SDR CA050408001Gcu · failed(CAN) SHORTLY AFTER DEPARTING YZF, NR 2 DC GENERATOR WENT OFF LINE. THE AIRCRAFT RETURNED TO POINT OF DEPARTURE WHERE MAINTENANCE RERACKED THE NR 2 GCU AND GROUND RAN THE AIRCRAFT WITH NO FAULT FOUND. RETURNING TO YZF LATER SAME DAY THE NR 2 DC GENERATOR WENSDR 21200003002Alternator · fouledON APPROACH, ELECTRICAL POWER LOSS. AFTER CONTACT WITHTOWER, COMM 1 RADIO TURNED OFF, WITHIN 3-5 SEC C/B FOR ALTERNATOR OUTPUT TRIPPED & INSTRUMENT PANEL LIGHTS DIMMED, AMP GAUGE SHOW DISCHARGE OF BATTERY. TURNED OFF NON ESSENTIAL ELECTRICAL EQUIPMENT & RESE
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