JASC 2424

Service difficulty reports · 480

Reports filed under 2424 · AC Regulator, 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 = '2424'
  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 03256413Wire · looseFLIGHT CREW REPORTED VISABLE WHITE SMOKE IN CABIN AND LT PACK FAIL MESSAGE. MAINTENANCE PERSONNEL DETERMINED SMOKE TO BE RESULT OF MAIN ELECTRICAL BUS BEING UNTIED WHICH RESULS IN FANS BEING INOPERATIVE. MAINTENANCE PERSONNEL RETIED MAIN BUS AND PERFORMED SASep 13, 2003 · N413FJ · Dorner DO328300SDR AUS20030929Gcu · failed(AUS) NR 1 GENERATOR CONTROL UNIT (GCU) FAILED.Sep 12, 2003 · Bag BAE146300ASDR UPS03441140Gcu · malfunctionedINSPECTION TYPE:N/A DURING SHUTDOWN ON ENG 2 & 3 DURING TAXI IN BTB NR 2 OPENED. WHEN CLOSURE ATTEMPTED THE KW OUTPUT ON GEN 4 SPIKED TO 60+ KW AND BTB REOPENED. ALSO SMELLED SLIGHT ODOR OF ELECTRICAL SMELL/BURN. REMOVED AND REPLACED NR 2 GCU.Aug 21, 2003 · N672UP · Boeing 747123SDR C2XA03IA077Gcu · faultyIAH - FLT NR 3325 - UPON APPROACH TO IAH THE CREW REPORTED THAT GENERATOR NUMBERS 1, 2, 3, AND APU SHOWING VOLTS BUT NO AMPS AND THAT GENERATOR 4 WENT OFF LINE AT 1500FT. THE AIRCRAFT LANDED AT IAH WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT AAug 6, 2003 · N24517 · Emb EMB135LRSDR DLM88030636Gcu · failedAFTER TAKE OFF, HAD LEFT GENERATOR FAIL AND AC CROSSTIE LOCK OUT MSG. AIR RETURN TO PHX T/S LEFT GCU WITH GCU FAULT LIGHT REPLACED LEFT GCU. INSP LT GEN AND CURRENT TRANSFORMERS. ALL CKS GOOD. RAN AC CROSSTIE TEST. FAILED TEST. REPLACED LT GEN POWER REJul 12, 2003 · N970DL · Doug MD88SDR USAABB03108Gcu · failedPIT - FLT 21 - EN ROUTE, WITH THE LEFT GENERATOR ON MEL FOR RIGHT GENERATOR NOT PICKING UP THE LEFT GENERATOR LOAD, AND APU OPERATING, THE APU PERFORMED AN AUTO SHUTDOWN. FLIGHT DIVERTED TO PIT AND LANDED WITHOUT FURTHR INCIDENT. MAINTENANCE REPLACED THE LEFJul 4, 2003 · N632AU · Boeing 7572B7SDR MEX2003316Gcu · failedFLT 6581 - MEX-CUN - AIRCRAFT RETURNED TO GATE, AC CROSS TIE NO TEST. DURING REVISION WAS DETECTED ACTR LIGHT AND APU PWR AVAIL LIGHTS ON. THE GCU AND BCU WERE REPLACED IAW MM 24-20-04/08 AND ENGINES AND GENERATION SYSTEM WERE TESTED, ALL CORRECT. (M)Jul 3, 2003 · N169PL · Doug MD88SDR HEEA086967Volt Regulator · inoperativeVOLT REGULATOR TRIPS GEN FIELD CIRCUIT BREAKER. SENT TO MFG FOR CREDIT.Jun 3, 2003 · N405PH · Bell 407SDR USAASB02234Gcu · failedPHL - MAINTENANCE REPORTED AN ELECTRICAL ODOR AND SMOKE IN THE COCKPIT WHILE TAXIING AIRCRAFT TO THE GATE. MAINTENANCE TROUBLESHOT THE PROBLEM TO THE NR 2 GENERATOR CONTROL UNIT (GCU). REMOVED AND REPLACED THE NR 2 GCU. RAN ENGINES. ALL SYSTEMS CHECK GOOD. Dec 26, 2002 · N426US · Boeing 7374B7SDR COEA0204222Control Unit · malfunctionedLEFT DEICE ALTERNATOR FAILED IN FLIGHT DURING CLIMB. MAINTENANCE PERSONNEL REPLACED AC CONTROL UNIT. AIRCRAFT RETURNED TO SERVICE. (M)Dec 11, 2002 · N222DG · Frchld F27FSDR AUS20021092Gcu · failed(AUS) LT GENERATOR CONTROL UNIT (GCU) FAILED. SUSPECT GCU FAILED DUE TO WATER INGRESS FOLLOWING ENGINE WASH.Oct 2, 2002 · Swrngn SA227*SDR CA021007001Gcu · inoperative(CAN) DURING TAXI TO POSITION FOR DEPARTURE, THE CREW NOTED ILLUNINATION OF THE RT AC GENERATOR FAULT LIGHT. TROUBLESHOOTING OF THE SYSTEM DETERMINED THAT THE RT GENERATOR CONTROL UNIT WAS AT FAULT. THE ASSEMBLY WAS REPLACED, THE SYSTEM TESTED SERVICEABLE, ANDOct 2, 2002 · Saab SF340ASDR SWIA200211271Gcu · malfunctionedCAPTAIN'S EHSI WENT BLANK ON TAXI OUT. REPLACED GCU NR 1 (AUX GEN NR 1) IAW MM 24-30-02. CHECKED OPERATION OF POWER TRANSFER AT NP 70 PERCENT WITHOUT OBSERVING ANY ANOMALIES ON EHSI NR 1. CHECKS GOOD. PARALLELED AUX GEN'S IAW MM 24-30-02 ALL OPS CHECK GOODSep 29, 2002 · N214SW · Emb EMB120ERSDR CA020916007Volt Regulator · malfunctioned(CAN) DURING REQUIRED ANNUAL INFLIGHT MANUAL ADG DEPLOYMENT CHECK, AN ABNORMAL SURGING IN VOLTAGE TOOK PLACE ON DEPLOYMENT. A140 STANDBY INST. LIGHTING A150 STICKPUSHER A150 L/H CHANNEL SPS. A159 & CHANNEL ANNUNCIATOR A160 10 CHANNEL ANNUNCIATOR B184 OBSERVERSep 4, 2002 · Cndair CL6013ASDR AUS20020907Gcu · out of adjust(AUS) RT GENERATOR CONTROL UNIT (GCU) OUT OF ADJUSTMENT.Aug 15, 2002 · Beech 1900CSDR DLM88020901Gcu · failedLEFT GENERATOR OFF MESSAGE ILLUMINATED AT 7000 FT ON CLIMBOUT NO VOLTS OR FREQS. FOUND NR 1 GCU FAULT LIGHT ILLUMINATED. REPLACED NR 1 GCU. REPLACED NR 1 CSD AND GEN PER AMM. NR 1 GEN, OPS CHECK GOOD.Aug 2, 2002 · N968DL · Doug MD88SDR 02FDEA00487Gcu · malfunctionedNR 3 GENERATOR BREAKER TRIPPED. RESET IAW CHECK LIST. RETRIPPED AFTER APPROXIMATELY 1 MINUTE. NR 2 FIELD AND NR 2 GENERATOR TRIPPED. ACCOMPLISHED CHECK LIST PROCEDURES. UNDER VOLTAGE INDICATED ON NR 2. REMOVED AND REPLACED NR 3 GENERATOR CONTROL UNIT IJul 12, 2002 · N483FE · Boeing 727200SDR AALA20020705Gcu · faultyORD - FLT 153 - EN ROUTE ORD-NRT - GENERATOR CONTROL OFF LIGHT CONTINUALLY CYCLED THROUGHOUT ENTIRE FLIGHT. RETURNED ORD AND LANDED WITHOUT INCIDENT. REPLACED RIGHT GENERATOR CONTROL UNIT. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)May 10, 2002 · N762AN · Boeing 777223SDR AALA20020739Gcu · failedORD - FLT 0153 - RIGHT GEN CONTROL OFF LIGHT CONTINUALLY CYCLED THROUGH OUT ENTIRE FLIGHT. NO EICAS MESSAGE WHEN ON LOAD SHEDDING INDICATIONS WERE DISPLAYED WHEN OFF LIGHT ON. FOUND RIGHT GCU FAILED WITH CODE 24-33402. REPLACED RIGHT GCU. ALL CHECKS GOOD. May 10, 2002 · N762AN · Boeing 777223SDR DL764020477Gcu · faultyLT GEN FAILED AND APU FAILED TO POWER BUS. RESET ALL GCUS HAD HARD FAULT 24-30102 RT GCU FAULT. REMOVED AND REPLACED RT G PER FIM. RAN ALL ENG GENS ALL GEN TOOK LOADS. OPS CHECKS OK. CHECKED IDG DELTA PS. CHECK OK. C/W EO 14-85612-3 REV A ME-O1.Apr 23, 2002 · N835MH · Boeing 767432ERSDR 2002F00644Regulator · malfunctionedDURING CLIMB-OUT OF PHL, GEN 1 BTB, GB AND FIELD LIGHTS ILLUMINATED FOLLOWED ABNORMAL PROCEDURES DUMPED 22,000 LBS RETURNED TO AIRPORT ONE GENERATOR ALREADY ON DMI SWAPPED RN 1 AND NR 2 VOLTAGE REGULATOR. OPS CHECK GOOD PER MM 24-20. AIRCRAFT RETURNED TO SERApr 12, 2002 · N266US · Boeing 727251SDR AALA20020534Gcu · failedJFK - FLT 182 - AFTER 40 MINUTES OF FLIGHT LEFT GENERATOR OFF, WOULD NOT RESET. REMOVED AND REPLACED LEFT GCU AND LEFT IDG. PERFORMED OPERATIONAL CHECK OF LEFT GENERATOR SYSTEM. ALL OPS NORMAL. PERFORMED ENGINE RUN SYSTEM CHECKS NORMAL. NO LEAKS NOTED. OApr 6, 2002 · N386AA · Boeing 767323SDR AALA20020386Gcu · failedJFK - FLT 104 - ELECT GEN OFF ILLUMINATED AT FL18000 WHEN THE LANDING LIGHTS WERE TURNED OFF. REPLACED LEFT GENERATOR CONTROL UNIT IAW MM 24-22-02-4 ACCOMPLISHED ALL REQUIRED TESTS PER MM CHECKED GCU OPS PROGRAM ALL NORMAL. (M)Mar 30, 2002 · N786AN · Boeing 777223SDR WRLA2002206Gcu · failedDURING TAXI OUT, NR 3 GENERATOR OFF LIGHT ILLUMINATED NR 3 GENERATOR WAS RESET PER FCOM. DURING CLIMB APPROXIMATELY 15,000 FEET NR 3 GENERATOR VOLTS AND FREQUENCIES WENT TO ZERO. ATTEMPTED RESET NR 3 GENERATOR MAINTAINED VOLTS AND FREQUENCIES, LOAD FOR SECONMar 13, 2002 · N107WA · Doug DC10SDR ARWA20020307Volt Regulator · malfunctionedON FINAL APPROACH SMOKE CAME FROM RT SIDE OF COCKPIT. REMOVED AND REPLACED NR 4 VOLTAGE REGULATOR (BURNT) IAW MM 29-5-11, OPS CHECKED NORMAL IAW MM 24-5-1.Mar 13, 2002 · N426FB · Doug DC85F54SDR P2EA2002M010Gcu · failedLEFT GENERATOR FAILED ON TAKEOFF. LEFT GENERATOR FEEDER FAULT, LEFT AC BUS OFF, LEFT GENERATOR OFF. AC CROSSTIE LOCKOUT LIGHTS, LEFT SIDE LOCKED OUT (TRIM INOP ETC). LEFT GENERATOR WOULD NOT RESET ON FIRST TRY. DID RESET ON SECOND TRY. AC CROSSTIE LOCKOUTFeb 24, 2002 · N814US · Doug DC981SDR AWXA200200153Armature · intermittentAT 28,000 FL CRUISE JUST PRIOR TO TOP OF DESCENT THE AIRCRAFT LOST ELECTRICAL POWER WITH ALL GAUGES AND INSTRUMENTS FLAGGED, POWER RETURNED AFTER 3 SECONDS AND AIRCRAFT LANDED UNEVENTFULLY IN PHX. MX COULD NOT DUPLICATE THE PROBLEM, TROUBLESHOT FOR OPEN PHASEFeb 18, 2002 · N160AW · Boeing 7373G7SDR AUS20020119Gcu · faulty(AUS) GENERATOR CONTROL UNIT (GCU) SUSPECT FAULTY.Feb 17, 2002 · Boeing 767338SDR HEEA077826Volt Regulator · failedVOLTAGE DROPPING TO 20 VOLTS ON CROSS START, DUE TO MALFUNCTIONING VOLTAGE REGULATOR.Feb 7, 2002 · Bell 214STSDR AUS20020274Gcu · faulty(AUS) NR 1 GENERATOR CONTROL UNIT (GCU) FAULTY.Jan 15, 2002 · Bac 146200ASDR ARWA20020109Gcu · failedDURING APPROACH NR 4 GENERATOR UNPARALLEL LIGHT AND BUS POWER FAIL LIGHT ILLUMINATED. PERFORMED ABNORMAL CHECKLIST. AIRCRAFT LANDED AT DESTINATION UNEVENTFUL. RESET NR 4 GENERATOR SYSTEM IN ACCORDANCE WITH MM 24-5-1 ENTERED ON DMI 16156 PER MEL 24-1 GEN NR Jan 8, 2002 · N29UA · Doug DC861SDR MWEA011479Gcu · failedLOST LEFT HAND GENERATOR JUST AFTER TAKEOFF. NORMAL CROSSTIE RAN QRH, RESET GENERATOR, AGAIN LOST LEFT GENERATOR RAN QRH. LEFT HAND GCU HAD GENERATOR CONTROL FAULT LIGHT ON. REMOVED AND REPLACED LEFT HAND GCU. SYSTEMS OPS CHECK GOOD.Dec 10, 2001 · N401ME · Doug DC932SDR P5CA0100615Gcu · failedFIVE SECONDS AFTER LIFT OFF, EICAS MESSAGE APPEARED: ELEC AC BUS - NR 1 AC BUS BECAME ISOLATED AND UNPOWERED. WOULD NOT RESET PER NNL ELEC AC BUS CHECKLIST. FOUND NR 1 GCU DIFFERENTIAL LOCK OUT. REPLACED NR 1 GCU WITH KLM LOAN PART. CARRIED OUT CMC GROUNDNov 25, 2001 · N451PA · Boeing 747*SDR CA011120014Controller · failed(CAN) AFTER DEPARTURE AIRCRAFT HAD A RT AC BUS FAIL , AIRCRAFT RETURNED FOR NORMAL LANDING , AC GEN CONTROL UNIT REPLACED.Nov 15, 2001 · Dhav DHC8301SDR LS1R076933Volt Regulator · out of adjPART IS OUT OF CALIBRATION.Oct 31, 2001 · N369AW · Hughes 369DSDR DL733011709Gcu · failedAPU OVERSPEED, NR 1 GEN WAS ALREADY ON MCO. RESET OVERSPEED ON APU ACCY UNIT. APU WORKS NORMAL. REPLACED NR 1 GCU NR 1 GEN WORKS NORMAL.Oct 23, 2001 · N307WA · Boeing 737347SDR AALA20011797Gcu · failedAFTER TAKEOFF, RIGHT GEN OFF PLUS RIGHT GEN DRIVE LIGHT ON STEADY. GEN DISCONNECTED BY CREW. PLACARD RIGHT GEN INOPERATIVE PER MEL ENTERED IN MIC SHEET VERIFIED BOTH IDG'S AND APU OIL FULL IAW MEL 24-1 IDG REMAINS DISCONNECTED. BITE CHECK OF BPCU SHOWS NO FSep 13, 2001 · N320AA · Boeing 767223SDR 2001F00453Gcu · failedFLT 504 - DEPARTING CCS - WHILE CLIMBING OUT, NR 1 GENERATOR HAD DIFFERENT FAULT INDICATION ON F/E PANEL. NR 3 GENERATOR WAS PREVIOUSLY ON DMI. RETURNED TO DEPARTURE CITY. AIRCRAFT LANDED WITHOUT INCIDENT. NR 1 ENGINE GENERATOR SYSTEM TROUBLESHOT AND VOLTAAug 13, 2001 · N203AV · Boeing 727259SDR AALA20011556Gcu · failedLIT - FLT 1121 - EN ROUTE BOS-DFW, RIGHT AC BUSS LOSS. LANDED LIT WITHOUT INCIDENT. REPLACED RIGHT CSD, GENERATOR AND GENERATOR CONTROL UNIT P/N 947F9453. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)Aug 3, 2001 · N587AA · Doug DC982SDR MALA010568Connector · dirtyAFTER TAKEOFF ON FLIGHT 3251, THE RT AC GEN LIGHT CAME ON. DID QRH, LIGHT REMAINED ON. AIR RETURN TO MSP. MAINTENANCE CLEANED CANNON PLUG AT GCU, RAN ENGINE PERFORMED OPS CHECKS ALL GOOD AT THIS TIME.Jul 2, 2001 · N441XJ · Saab 340BSDR HEEA073603Volt Regulator · failedGENERATOR DROPS OFF LINE.Jun 18, 2001 · N6610C · Bell 206L3SDR CALA0100553Gcu · failedTHE RT GENERATOR AND RT AC BUS WERE LOST AND SMOKE ENTERED THE COCKPIT AND CABIN WHILE EN ROUTE FROM EWR TO GRU. THE APU WAS STARTED, BUT IT WOULD NOT RECOVER THE RT AC BUS. THE AIRCRAFT WAS DIVERTED TO BSB WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUNJun 15, 2001 · N76055 · Boeing 767424ERSDR AWXA0001776Gcu · failedDURING BOARDING SEVERAL CIRCUIT BREAKERS POPPED AND MULTIPLE AMBER LIGHTS ON OVERHEAD ILLUMINATED; SMOKE FILLED THE COCKPIT; ORDERED A/C EVACUATED; POWERED A/C DOWN. REPLACED APU GENERAL CONTROL UNIT DUE TO FAILURE IAW MM 24-21-81; CHANGED APU GENERAL BREAKERMay 29, 2001 · N149AW · Boeing 7372U9SDR RAIA00105012Gcu · failed7006-SGF-LEFT DC GENERATOR FAULT ILLUMINATED AFTER TAKEOFF. MAINTENANCE INSPECTED AND REPLACED LEFT GENERATOR CONTROL UNIT (GCU) AND LEFT DC GENERATION SYSTEM HALL EFFECT SENSOR.May 18, 2001 · N426TE · Aerosp ATR42300SDR HEEA073016Volt Regulator · failedWILL NOT PICK UP LOAD.May 7, 2001 · N612PH · Bell 407SDR MALA010434Gcu · defectiveLEFT DC GEN FAILED INFLIGHT, AIR RETURN TO DTW FOR LEFT DC GENERATOR OFFLINE. MAINTENANCE REPLACED LEFT DC GCU P/N 51539-007B, S/N ON 98658 IAW SAAB 340 AMM CHAP 24-31. OPS CHECK GOOD.May 1, 2001 · N991XJ · Saab SF340ASDR CALA0100427Gcu · failedRIGHT GENERATOR CONTROL OFF LIGHT CAME ON IN FLIGHT. STARTED APU BUT APU GENERATOR OFF LIGHT CAME ON. REPLACED RIGHT GENERATOR CONTROL UNIT.Apr 25, 2001 · N59053 · Boeing 767424ERSDR SIMA20011096Gcu · failedMIA - FLT 5201 - CREW REPORTED THE NR 1 ACW ALTERNATOR FAULTED IN FLIGHT. CREW RETURNED TO MIA WITH NO FURTHER INCIDENTS. MAINTENANCE REMOVED AND REPLACED THE NR 1 ACW GENERATOR CONTROL UNIT. OPERATIONAL CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. Apr 19, 2001 · N135MQ · Aerosp ATR42300SDR LS1R072592Regulator · out of adjREGULATOR UNABLE TO HOLD ADJUSTMENT.Apr 16, 2001 · N53AG · Bell UH1HSDR CA010423002Gcu · failed(CAN) NR 1 ENGINE GENERATOR FAILED INBOUND, NR 1 GENERATOR CONTROL PANEL REPLACED AS PER WORK CARD.Apr 13, 2001 · Boeing 737217
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