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.

SDR AU010316Bearing · failed(AUS) RT ENGINE ALTERNATOR BEARING FAILED.Mar 19, 2001 · Cessna 310RSDR MALA010279Generator · defectiveON FLIGHT 3116, RIGHT DC GENERATOR FAILED IN FLIGHT, ACCOMPLISHED ORH, COULD NOT GET BACK ONLINE. AIR RETURN TO MSP. MAINTENANCE REPLACED RIGHT DC GENERATOR P/N 51539-007B, S/N ON 98079, S/N OFF 97814 IAW AMM 24-30-00. OPS CHECK GOOD.Mar 19, 2001 · N436XJ · Saab 340BSDR CA010409004Brush Holder · worn(CAN) DURING CRUISE FLIGHT THE SECOND GENERATOR WENT OFF LINE, THE PILOT DID A RESET, THE GENERATOR CAME BACK ONLINE. APPROXIMATELY FIVE MINUTES LATER IT WENT OFF LINE AGAIN. THIS TIME THE PILOT DID NOT TRY TO RESET. ONCE THE AIRCRAFT WAS BACK ON THE GROUND THMar 16, 2001 · Pilats PC1245SDR RAIA00103009Sensor · failed7170-STL- RIGHT DC GENERATOR FAULTED IN FLIGHT. MAINTENANCE INSPECTED AND REPLACED RIGHT HALL EFFECT SENSOR.Mar 14, 2001 · N723TE · Aerosp ATR72202SDR GLBA2001051Starter Gen · failedLEFT DC GENERATOR ANNUCIATOR ILLUMINATED INFLIGHT WOULD NOT RESET. REPLACED STARTER-GEN, OPS CHECKED GOOD.Mar 3, 2001 · N195GL · Beech 1900DSDR CA010305008Brushes · worn(CAN) DURING CLIMB OUT THE GEN 2 WENT OFF LINE. AS THE LOAD DROPPED THE GEN 2 WAS TURNED BACK ON LINE AND IT STAYED ON LINE UNTIL THE LOAD WAS INCREASED AND THEN IT WENT BACK OFF LINE. AIRCRAFT RETURNED TO BASE AND THE GEN 2 WAS REPLACED. THIS GEN IS A POST SBFeb 26, 2001 · Pilats PC1245SDR CA010223015Brushes · worn(CAN) NR 2 GENERATOR SYSTEM TRIPPED OFF LINE IN FLIGHT. WOULD NOT COME BACK ON LINE. INVESTIGATION SHOWED THAT THE BRUSHES WERE WORN OUT AND THE COMMUTATOR SHOWED SIGNS OF PITTING AND ARCING. THE GENERATOR ASSEMBLY WAS REPLACED AND THE AIRCRAFT WAS RETURNED TFeb 16, 2001 · Pilats PC1245SDR CA010212012Brushes · worn(CAN) GEN BRUSHES WERE WORN AND COMMUTATOR DAMAGED. GEN 2 REPLACED. THE DRIVE HAD ALSO SHEARED. THE P/N OF THE DRIVE IS 524.32.12.137. THESE 2 ITEMS ARE TROUBE ITEMS AND NEED LOOKING INTO FOR THE CAUSE AND CURE.Feb 2, 2001 · Pilats PC1245SDR 20010205CW007Alternator · separatedOHC ALTERNATOR, BOLTS HOLDING HOUSING TOGETHER, 2 BACKED OUT, LEFT HANGING BY INTACT SAFETY TO 3RD BOLT.Jan 16, 2001 · N9627Q · Cessna 172MSDR SIMA200101202Generator · inoperativeALB - FLT 5012 - CREW REPORTED THE LEFT DC GENERATOR LIGHT ILLUMINATED IN FLIGHT. RESET PER AOM, GENERATOR LIGHT STILL REMAINED ILLUMINATED. MAINTENANCE REMOVED AND REPLACED LEFT DC GENERATOR IAW SAAB MM. OPS AND LEAK CHECK WAS GOOD AND AIRCRAFT WAS RETURNEJan 12, 2001 · N297AE · Saab 340BSDR GLBA2001003Generator · inoperativeRETURN TO BLOCK - RIGHT GEN FELL OFF LINE WOULD NOT RESET, R/R STARTER-GEN SYSTEM OPS CHECKED GOODJan 7, 2001 · N169GL · Beech 1900DSDR CA010322008Brushes · worn(CAN) OUR STANDBY ELECTRICAL POWER INOP LIGHT WAS FADING IN AND OUT AT APPROX 65 - 67 PERCENT NG. THE RESISTOR WAS CHECKED OUT AT 110 OHMS AND THEN THE FIELD BRUSHES WERE CHECKED - FOUND THAT TO BE WORN PAST THE POINT OF MAKING CONTACT WITH THE SLIP RINGS. NEWDec 21, 2000 · Cessna 208BSDR 20010129CW006Alternator · inoperativeALTERNATOR INOPERATIVE.Dec 21, 2000 · N158JG · Beech 58SDR CA010112002Brushes · worn(CAN) GEN 2 WOULD GO OFF LINE WHEN PROBE HEAT SELECTED. FOUND GEN 2 BRUSHES WORN AS WELL AS WEAR ON COMMUTATOR. UNDER HEAVY LOAD THIS CAUSED GEN 2 TO GO OFF LINE. THESE ARE THE NEW AND IMPROVED BRUSHES THAT WERE INSTALLED TO COMPENSATE FOR THE OLD BRUSHES WEARDec 15, 2000 · Pilats PC1245SDR AU001251Generator · failed(AUS) NR 2 (RT) MAIN GENERATOR FAILED.Dec 13, 2000 · Emb EMB120SDR RAIA0012005Sensor · failed7006-SGF-RT GENERATOR FELL OFF LINE DURING TAXI. MAINTENANCE INSPECTED AND REPLACED RIGHT HALL EFFECT SENSOR.Dec 7, 2000 · N721TE · Aerosp ATR72202SDR SIMA33410Generator · malfunctionedMIA - FLT 5239 - NR 2 DC GENERATOR FAULTS IN FLT. REMOVED AND REPLACED THE NR 2 DC GENERATOR. OPS CHECK GOOD. (M)Nov 29, 2000 · N277AT · Aerosp ATR42300SDR 20001218SH018Alternator · shortedFOUND WORN BRUSH IN ALTERNATOR CAUSING SPRING OF BRUSH TO COME OUT OF POSITION TO SHORT ALTERNATOR FIELD. (X)Nov 29, 2000 · N6832Y · Cessna 310RSDR CA010111024Generator · failed(CAN) WHILE IN CRUISE THE NR2 GENERATOR FAILED. WHEN THE GENERATOR WAS EXAMINED THE BRUSHES WERE FOUND TOTALLY GONE.Nov 22, 2000 · Pilats PC1245SDR AU001123Alternator · failed(AUS) ALTERNATOR FAILED. WINDINGS AND DIODES BURNT. ALTERNATOR HAD ONLY RECENTLY BEEN OVERHAULED. (X)Nov 22, 2000 · Cessna 404CESSNASDR CA001103009Generator · failed(CAN) 4 GENERATORS WERE TRIED ON THIS AIRCRAFT OVER A PERIOD OF 15 - 18 MONTHS, THE END RESULT WAS INSTALLING AN ALTERNATOR KIT, AS THE COMPANY OVERHAULED THE GENERATOR WAS DOING SUBSTANDARD WORK.Oct 20, 2000 · Cessna 182GSDR CA001024003Generator · failed(CAN) NORMAL TIME BETWEEN OVERHAULS FOR THIS UNIT IS 1300 HOURS; THIS GEN ONLY HAD 109 TSO. THE FOLLOWING PROBLEMS WERE FOUND: BRUSHES WERE WORN, FOUR SCREWS WHICH RETAIN A PLATE ON THE GEN WERE COMPLETELY WORN OUT EVEN IF THEY HAD ALWAYS BEEN HELD TOGETHER WOct 12, 2000 · Cndair CL2151A10SDR AU001028Hub · failed(AUS) ALTERNATOR FLEXIBLE DRIVE COUPLING FAILED. (X)Oct 10, 2000 · Beech A36SDR SIMA2782Gcu · malfunctionedMIA - FLT 5295 - NR 2 DC RETURNED TO MIA WITH NO FURTHER INCIDENTS REPORTED. RESET THE DC BPCU AND THE NR 2 DC GCU CONTROL BOXES. SYSTEM OPS CHECKED GOOD. (X)Oct 4, 2000 · N233RM · Aerosp ATR42300SDR AU000941Wire · cracked(AUS) RIGHT ALTERNATOR FIELD WIRING CRACKED ALLOWING SHORT CIRCUIT. (X)Oct 2, 2000 · Piper PA39SDR CA001018015Drive Shaft · sheared(CAN) SHAFT SHEARED WHILE INSTALLATIOIN TORQUE WAS BEING APPLIED.Sep 22, 2000 · Pilats PC1245SDR 20000920SH009Alternator · faultyALTERNATOR 60-AMP CIRCUIT BREAKER TRIPPED. JUMP STARTED AIRCRAFT. ENGINE GROUND RUN. ALTERNATOR CHARGED BATTERY WITH RADIO MASTER SWITCH ON. AS LANDING TAXI LIGHTS WERE TURNED ON, 60-AMP CIRCUIT BREAKER TRIPPED. INSTALLED TROUBLESHOOTING EQUIPMENT, INDICSep 12, 2000 · N4928S · Cessna TR182SDR 20001017SH042Alternator · failedDURING TRAINING FLIGHT, PILOT NOTICED SEVERAL HIGH AMPERAGE SPIKES FOLLOWED BY A TOTAL LOSS OF ELECTRICAL OUTPUT FROM THE ALTERNATOR. ALSO DAMAGED ELECTRICALLY WERE THE VOLTAGE REGULATOR AND OVERVOLTAGE RELAY. POSSIBLE CAUSE FOUND DURING A BENCH CHECK OF AFFSep 7, 2000 · N8366Z · Piper PA28181SDR AU000874Alternator · faulty(AUS) ALTERNATOR FAILED. INVESTIGATION COULD FIND NO FAULT. SUBMITTER SUSPECTED CAUSED BY STICKING BRUSH. (X)Sep 5, 2000 · Cessna 172NSDR 20000920SH004Alternator · failedALTERNATOR HAD NO OUTPUT. (X)Aug 31, 2000 · N3196W · Beech 58SDR CA000926014Alternator · seized(CAN) ALTERNATOR SEIZED. BELT PULLEY SHEARED FROM MAIN DRIVESHAFT. (X)Aug 24, 2000 · Cessna 172RSDR CA000829022Drive Shaft · sheared(CAN) GEN 2 FAILED IN FLIGHT. UPON MAINTENANCE INVESTIGATION, IT FOUND THAT THE DRIVE SHAFT WAS SHEARED. THE REAR BEARING HAD SPUN ON THE DRIVE SHAFT AND MARKED IT UP ALSO. IT IS NOT FELT THIS WAS A CONTRIBUTION TO THE SHEARED FAILURE BUT IT IS THE SECOND DRIVAug 18, 2000 · Pilats PC1245SDR Y2PA00041Starter Gen · failedOKC- FLT 92269 - DUAL GEN FAIL; CAUSED BATTERIES TO TRIP OFF-LINE, NR 1 FAILED ON, NR 2 FAILED OFF. CREW LOST NR 2 GEN, ACCOMP SINGLE GEN FAIL CHKLIST, RESETTING GEN TWICE. 4 MINUTES LATER, LOST NR 1 GEN, BATTERIES KICKED OFF-LINE. ACCOMP DOUBLE GEN FAIL, BAug 9, 2000 · N819AA · Amd FALCONSDR 20000920SH002Alternator · malfunctionedALTERNATOR DROPS OFF LINE. (X)Jul 31, 2000 · N458JG · Beech 58SDR C2XA00IA229Generator · shortedFLT 4219 - IAH-AMA - THE CREW REPROTED THAT THE NR 2 GENERATOR OFF BUS LIGHT ILLUMINATED. THE AIRCRAFT LANDED AT AMA WITHOUT INCIDENT WHERE MAINTENANCE FOUND THE NR 2 GENERATOR TO HAVE SHORTED INTERNALLY, BURNING AND SPLITTING THE HOUSING. MAINTENANCE REMOVEJul 30, 2000 · N13969 · Emb EMB145SDR 20000808SH002Alternator · failedRIGHT ALTERNATOR WAS INOPERTIVE ON RUN-UP BEFORE DEPARTURE. CAUSE OF PROBLEM WAS A DEFECTIVE ALTERNATOR. REPLACED THE ALTERNATOR AND CHECKED THE CHARGING SYSTEM, OK.Jul 26, 2000 · N3208Q · Cessna 401SDR CA000804011Stator · broken(CAN) TWO LEGS OF STATOR WINDING BROKE AT DIODE PLATE. RESULTS NO ALTERNATOR OUTPUT. (X)Jul 23, 2000 · Beech P35SDR AU000542Housing · cracked(AUS) ALTENATOR REAR HOUSING CRACKED AT ATTACHMENT POINTS.Jul 14, 2000 · Piper PA28161SDR CA000803005Alternator · failed(CAN)ALTERNATOR NOT CHARGING, POSSIBLY DUE TO INTERNAL PROBLEMS.Jul 7, 2000 · Parten P68CSDR CA000720007Brush Block · worn(CAN) UPON LANDING NR 2 GENERATOR WENT OFF LINE RED ANNUNCIATOR GEN 2 OFF ILLUMINATED. PILOT WAS UNABLE TO RESET GENERATOR. INVESTIGATION OF GENERATOR SYSTEM FOUND NR 2 GENERATOR BRUSHES WERE WORN TO THE EXTENT THE BRUSHES NO LONGER CONTACTED THE SLIP RINGS.Jul 6, 2000 · Pilats PC1245SDR 20000821SH004Cooling Fan · brokenDURING 100-HOUR INSPECTION, NOTED ALL OF THE BLADES OF THE COOLING FAN HAD BROKEN FROM THEIR MOUNTING PLATE AND SEPARATED FROM THE ALTERNATOR. ALTERNATOR WAS STILL PROPERLY FUNCTIONING. THE COOLING FAN BLADES WERE ATTACHED TO AN ALUMINUM PLATE. THE BLADES HJun 29, 2000 · N958SC · Piper PA38112SDR 20000712SH012Housing · loosePILOT REPORTED ALTERNATOR INOPERABLE AT TAKEOFF POWER. AT IDLE, ALTERNATOR APPEARED TO OPERATE NORMALLY. UPON EXAMINATION, FOUND THE COARSE THREAD INTERNAL WRENCHING BOLTS HOLDING THE ALTERNATOR CASE HALVES WERE LOOSE, WHICH AT HIGH ENGINE RPM, CAUSED THE CJun 15, 2000 · N756DJ · Cessna U206ASDR 20000711SH007Alternator · brokenHOLES DISCOVERED IN LOWER AND UPPER ENGINE COWLING ON LEFT SIDE. REMOVED COWL AND FOUND ALTERNATOR COOLING FAN BROKEN CAUSING DAMAGE TO COWL. REPAIRED COWL AND REPLACED FAN ASSY WITH NEW PART. SUBMITTER STATED IT APPEARED THAT THE ''DISHED'' FRONT PLATE WASJun 15, 2000 · N354MR · Piper PA28181SDR 20000920SH003Alternator · inoperativeALTERNATOR INOPERATIVE. (X)Jun 9, 2000 · N3196W · Beech 58SDR CA000614001Generator · destroyed(CAN) LT ENGINE GEN FAILURE LIGHT CAME ON & GEN SELECTED OFF. WHEN A/C SLOWED FOR LDG SMOKE OBSERVED IN COCKPIT. ELECT. SYS WERE SHUT OFF & SMOKE DISSIPATED. UPON INVESTIGATION FOUND THAT GENERATOR HAD SHEARED OFF ALL OF MOUNTING STUDS WITH GEN LYING IN BOTTOMMay 25, 2000 · Gruman FIRECATSDR MALA00358Generator · inoperativeDC GENERATOR (LT) INOP. MAINTENANCE REPLACED PDU, RAN A/C OPS CHECK GOOD.May 22, 2000 · N452XJ · Saab 340BSDR AU000408Rotor · shorted(AUS) LEFT ALTERNATOR SHORT CIRCUITED. COMPLETE ELECTRICAL FAILURE. A PROBLEM LOWERING THE LANDING GEAR RESULTED IN A GEAR UP LANDING CAUSING DAMAGE TO THE AIRCRAFT. SEE SDR AU000404 FOR ADDITIONAL INFORMATION.May 10, 2000 · Piper PA30SDR CA000530038Bearing · disintegrated(CAN) LEFT GENERATOR TRIPPED OFF IN-FLIGHT AND WOULD NOT RESET. ON INSPECTION, FOUND GENERATOR FRONT BEARING UNSERVICEABLE. REMOVED GENERATOR AND REPLACED WITH O/H UNIT. VIBRATIONS FELT THROUGHOUT AIRCRAFT WHEN GEN TRIPPED OFF LINE.May 4, 2000 · Lear 31ASDR DHL200080102Panel · defectiveON CLIMB, NR 1 ELECTRICAL BUSS FAILED AT 1000 FOOT AGL. FOUND NR 1 GEN CONTROL PANEL DEFECTIVE. REPLACED IAW MM 24-20-15.May 2, 2000 · N801DH · Doug DC873FSDR CA000329042Alternator · shorted(CAN) SHORTLY AFTER TAKEOFF, THE AMMETERS WERE SHOWING A DISCHARGE AND VOLTAGE REGULATOR POPPED. ALTERNATOR FOUND TO BE SHORTED INTERNALLY.Mar 28, 2000 · Piper PA31
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