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 AU010332Gcu · faulty(AUS) RH GENERATOR CONTROL UNIT (GCU) FAULTY.Apr 7, 2001 · Boeing 767338SDR C8GA20010005Gcu · contaminatedFLT BX742 FROM TOL TO OMA. NR 1 IN LINE FOR TAKEOFF, NR 1 GENERATOR HAD A 3 LIGHT TRIP WITH A BRIEF LOSS OF NR 2 & 3 GCB''S AND ESSENTIAL POWER (SELECTED ON NR 3 AT THE TIME). CREW REPORTED SMELLING SMOKE IN THE COCKPIT. AIRCRAFT RETURNED TO BLOCKS WITHOUT Apr 6, 2001 · N287SC · Boeing 7272A1SDR GAIA01110OPGcu · faultyFLT 2019 - ABQ-PHX, NO CLIMB-OUT, SHORTLY AFTER FLAP RETRACTION, EXPERIENCED DIFFERENTIAL FAULT IN NR 2 SYSTEM IN COMBINATION WITH ESSENTIAL POWER LOSS AND OVER EXCITATION IN SYSTEMS 1 AND 3, WHICH RESULTED IN THE LOSS OF THE SYNCHRONIZING BUS. AIRCRAFT MADE Mar 9, 2001 · N6827 · Boeing 727223SDR C2XA01IA147Gcu · failedLFT - FLIGHT 3431, THE CREW REPORTED SMOKE IN THE COCKPIT FOLLOWED BY THE NUMBER 2 A/C WILD GENERATOR FAULTING. THE AIRCRAFT LANDED AT LFT WITHOUT INCIDENT WHERE MAINTENANCE INSPECTED THE AIRCRAFT AND PLACED THE NUMBER 2 A/C WILD GENERATOR ON MEL 24-22-04 CONMar 6, 2001 · N14815 · Aerosp ATR42320SDR MALA010263Connector · faultyDURING FLIGHT 3047 LEFT AC GENERATOR FELL OFF LINE. LEFT AC GEN AND INTAKE LIGHT ON IN FLIGHT, EVERYTHING BUT INTAKE TRANSFER OK. AIR RETURN TO INL. MAINTENANCE FOUND LEFT AC GEN. CONTROL UNIT CONNECTOR CONTAMINATED. CLEANED CONNECTOR, REPLACED LEFT AC GENFeb 8, 2001 · N450XJ · Saab 340BSDR 0100809915Volt Regulator · failedDURING TAKEOFF ROLL, THE RIGHT GENERATOR FAILED. NUMEROUS ELECTRICAL SYSTEM ANNUNCIATORS LIT UP INDICATING LEFT GENERATOR DID NOT CROSSTIE SUCCESSFULLY. CREW ABORTED TAKEOFF AT 120 KTS. AIRCRAFT STOPPED SAFELY AND TAXIED TO GATE. CROSSTIE ACCOMPLISHED DURIFeb 2, 2001 · N965N · Doug DC931SDR AALA016010Gcu · failedSJC - ON SHORT FINAL WHEN DISCONNECTED THE AUTOPILOT, LOST THE GENERATOR AND GOT A L AC POWER FAULT LIGHT. DID NOT ATTEMPT TO RESET. CHECKED EPCU AND FOUND THE LEFT ENGINE GENERATOR CEU FAILED. DEFERRED LEFT ENGINE GENERATOR INOPERATIVE PER ML 24-21-01 DMI Jan 25, 2001 · N903RA · Doug MD9030SDR DHL2001805002Current Limiter · failedSPOILER PRESSURE 0, PREFORMED ALT PROCEDURE. REMOVED AND REPLACED SPOILER PUMP CURRENT LIMITERS. OPS CHK OK PER M/M 27-62-0.Jan 12, 2001 · N802DH · Doug DC873FSDR 20010207SG001Gcu · malfunctionedDURING CRUISE, EICAS MESSAGE ''LT GEN OFF'' DISPLAYED AND ''GEN OFF'' LIGHT ILLUMINATED. GENERATOR RESET, NO HELP. EICAS MESSAGE ''L AC BUT OFF'' REMAINED DISPLAYED. CREW SMELLED BURN ODOR IN THE FLT COMPT, NO SMOKE. UNSCHEDULED LANDING PERFORMED WITHOUT FJan 11, 2001 · N521AT · Boeing 75728ASDR DL764010021Gcu · failedRIGHT BUS OFF AT LEVEL OFF WITH CORRESPONDING LOSS OF A/C COMPONENTS. BUS OFF REMAINED ILLUMINATED AFTER GEN RESET. FOUND RT GCU FAULT ON BITE CHECK. REMOVED AND REPLACED GCU.Jan 2, 2001 · N830MH · Boeing 767432ERSDR TI1R001381Regulator · inoperativeVOLTAGE REGULATOR, NO OUTPUT-SUSPECT OVER VOLTAGE AT INPUT. REMOVED AND REPLACED.Dec 24, 2000 · N317MC · Bolkms BK117C1SDR TI1R001380Regulator · inoperativeVOLTAGE REGULATOR, NO OUTPUT. REMOVED AND REPLACED.Dec 24, 2000 · N317MC · Bolkms BK117C1SDR TWAA0019701Gcu · failedIN CRUISE FLIGHT WITH RT GEN INOPERATIVE THE APU GEN TRIPPED OFF LINE. THE LT GEN BECAME ERRATIC AND FAILED TO PICK UP THE LOAD, FOLLOWED BY LT AC BUS REPEATEDLY COMING ON AND OFF LINE RAPIDLY THEN COMPLETELY DROPPING OFF LINE. NO GENERATOR WOULD MAINTAIN ANY Dec 17, 2000 · N9413T · Doug DC983SDR USAASB00348Gcu · looseMSY - FLT 796 - PRIOR TO DEPARTURE, THE RT GENERATOR WAS PLACED ON MEL BECAUSE IT WOULD NOT COME ON LINE. SHORTLY AFTER TAKEOFF FROM MSY, THE APU FAILED TO POWER THE RIGHT SIDE, THEN THE TRANSFER BUS FAILED. FLIGHT RETURNED TO FIELD AT MSY AND LANDED WITHOUTDec 14, 2000 · N353US · Boeing 737301SDR USAASB00340Gcu · failedTPA - FLT 2655 - ON CLIMB-OUT FROM RSW, EN ROUTE TO LGA, THE NR 2 ENIGNE GENERATOR DROPPED OFF LINE AND WAS UNABLE TO BE RESET. ALSO, THE APU LOW OIL PRESSURE LIGHT WAS FLICKERING. THE NR 1 ENGINE CSD WAS ALREADY ON MEL, SO THE CREW DIVERTED THE FLIGHT TO TPDec 3, 2000 · N271AU · Boeing 7372B7SDR RAAA00B2051Regulator · defectiveAFTER ENGINE START BUT BEFORE TRANSFERING ELECTRICAL POWER FROM THE APU GENERATOR, NR 1 GENERATOR FIELD TRIPPED ACCOMPANIED BY AN OVERVOLTAGE SYSTEM 1 ON F/E PANEL AFTER RESETTING OVERVOLTAGE AND CLOSING THE FIELD BREAKER PER ABNORMAL 4-ELEC-A-1-4 OF OPS MANUANov 3, 2000 · N832RV · Boeing 72722CSDR CA001201013Gcu · failed(CAN) DEPARTED WITH MEL ON NR 2 GENERATOR, GENERATOR HAD BEEN DISCONNECTED. 50 MILES SOUTH WEST OF YQB, THE APU GENERATOR FAILED. NR 1 BUS TRANSFER DID NOT TAKE PLACE, FIRST OFFICER WAS WITHOUT INSTRUMENTS. REQUESTED LANDING TO YQB, LANDED WITHOUT INCIDENT. APOct 25, 2000 · Boeing 737217SDR USAASB00287Gcu · malfunctionedRDU - FLT 2990 - EN ROUTE FROM LGA TO PBI, THE NR 1 BUS OFF LIGHT ILLUMINATED. CREW STARTED APU BUT WAS UNABLE TO POWER THE BUS. FLIGHT DIVERTED TO RDU AND LANDED WITHOUT FURTHER INCIDENT. NO EMERGENCY WAS DECLARED. MAINTENANE FOUND A TENNIS RACKET BEHIND Oct 5, 2000 · N285AU · Boeing 7372B7SDR VNAA0005006Gcu · failedDURING TAKEOFF, THE CREW RECEIVED A LEFT HAND GENERATOR, ENVIRONMENTAL CONTROL UNIT FAIL, AND NOSE WHEEL STEERING FAIL CAS MESSAGE. THE CREW ABORTED TAKEOFF AND CONTACTED MAINTENANCE CONTROL. MAINTENANCE CONTROL HAD OUTSTATION MAINTENANCE RERACK THE BUS POWEMay 4, 2000 · N427JS · Dorner DO328100SDR CA000110010Gcu · failed(CAN) DURING THE TAKEOFF ROLL,THE NR 1 AC GENERATOR CAUTION LIGHT CAME ON. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO MAINTENANCE. MAINTENANCE REPLACED THE AC GCU AND RETURNED THE AIRCRAFT TO SERVICE.Dec 28, 1999 · Dhav DHC8102SDR RAIA9910005Gcu · failed7140 - ST L- NR 2 GENERATOR INOP. MAINTENANCE REPLACED NR 2 GENERATOR AND GCU.Oct 2, 1999 · N421TE · Aerosp ATR42300SDR USAA099904Voltage Regulato · failedFLT 6071 - BOS-LGA - ABORTED TAKEOFF DUE TO NR 2 GENERATOR DIFFERENTIAL FAULT, OVERVOLTAGE LIGHT ILLUMINATED. REPLACED NR 2 ENGINE VOLTAGE REGULATOR. OPERATIONAL CHECK NORMAL IAW MM CHAPTER 24-20-0. (M)Sep 29, 1999 · N924TS · Boeing 727227SDR RAIA9909019Gcu · failed7285-DEC- NR 2 GENERATOR INOP. MAINTENANCE REPLACED NR 2 GEN CONTROL UNIT.Sep 28, 1999 · N425AM · Bag JETSTM3201SDR DLM90992169Gcu · failedAT 31K FT APU GEN TRIPPED OFF LINE, RT ENG GEN ON MCO. A/C RETURNED. REPLACED APU GCU.Sep 28, 1999 · N911DA · Doug MD9030SDR RAIA990828Gcu · failedFLT 7741 - JFK - RIGHT GENERATOR INOPERATIVE. MAINTENANCE REPLACED RIGHT GENERATOR CONTROL UNIT. (M)Aug 20, 1999 · N560HK · Jetair JETSTM4101SDR DLL19991849Gcu · failedON TAKEOFF AT 0915 IN MCO FLT STATION BUS 2 FAIL LIGHT ILLUM. ABORTED TAKEOFF AT 125 KTS. APPLIED MINIMUM BRAKES DUE TO LIGHT WGT 332,000 LBS. C/W REPLACED NR 2 GCU, RAN ENG GENERATOR AND BUS OPN NORMAL. ALSO PERFORMED HIGH ENERGY STOP INSPECTION.Aug 18, 1999 · N753DA · Lkheed 10113853SDR AU990804Gcu · faulty(AUS) NR 2 AC BUS FAILED. GENERATOR CONTROL UNIT REPLACED.Jul 26, 1999 · Bag BAE146100ASDR DLM88991520Regulator · out of adjustLT GEN ON MCO, APU WOULD NOT STAY ON LINE. ADJUSTED LEFT ENGINE GEN FREQUENCY. OPS GOOD.Jul 6, 1999 · N937DL · Doug MD88SDR DL76S991436Gcu · failedDURING CLIMBOUT AT APPROX FL 250 PILOTS NOTICED ODOR IN COCKPIT. THE ODOR BECAME STRONGER, SEVERAL MINUTES LATER THE RT GEN OFF LIGHT ILLUMINATED WITH ASSOCIATED EICAS LIGHTS. THE INTENSITY OF ODOR REQUIRED USE OF COCKPIT OXYGEN MASKS. A/C DIVERTED TO JAX. Jun 25, 1999 · N130DL · Boeing 767332SDR 99ZZZX2606Volt Regulator · failedVOLTAGE REGULATOR WILL NOT PRODUCE POWER. REMOVED AND REPLACED.Jun 25, 1999 · N52AG · Bell UH1HSDR UIEA9930Gcu · inoperativeTPE/ANC - FLT GT386 - AFTER TAKEOFF, NR 2 GENERATOR FIELD AND MAIN BREAKER TRIPPED FOLLOWED BY NR 2 BUS TIE BREAKER TRIP. ONE MINUTE LATER, NR 1 GENERATOR FIELD AND MAIN GEN BREAKER TRIPPED. COULD NOT RESTORE EITHER GENERATOR. RESET NR 2 BTB AND THE NR 1 BTJun 12, 1999 · N527MC · Boeing 7472D7BSDR DLL10991329Gcu · failedFLIGHT STATION BUS FAILURE NR 2 ON TAKEOFF. NR 2 BUS TIE BREAKER TRIP OPEN AND NR 2 BREAKER FAILED, OPEN NR 2 FIELD REMAINED CLOSED. REPLACED NR 2 GCU, RAN ENGS AND ALL GEN SYS OPS NORMAL.Jun 12, 1999 · N733DS · Lkheed 10113851SDR DL73E991315Gcu · inoperativeNR 2 GENERATOR TRIPPED OFF LINE AT 1500 FT AND WOULD NOT RESET.Jun 10, 1999 · N374DL · Boeing 737247SDR EISA99127Gcu · failedNR 1 AND NR 2 GENERATOR UNDER EXCITOR LIGHTS ILLUMINATED, TRIPPED BOTH GENERATORS. REMOVED AND REPLACED NR 2 GCU, OPS CHECK NORMAL. (M)Jun 9, 1999 · N74318 · Boeing 727231SDR PLGA990527Gcu · failedBGR - FLT 6268 - AFTER TAKEOFF FROM BGR, THE LEFT DC GENERATOR FAILED AND THE AIRCRAFT RETURNED TO BGR WITHOUT INCIDENT. MAINTENANCE FOUND THE GENERATOR CONTROL UNIT TO BE AT FAULT, THE GCU WAS REPLACED, REQUIRED OPERATIONAL CHECKS WERE PERFORMED, AND THE AIRMay 27, 1999 · N742BA · Saab SF340ASDR USAASB99131Gcu · failedALB - FL1890 - APPROX 40 MILES SOUTH ALB, CREW SMELLED SMOKE IN THE COCKPIT AND NOTICED SMOKE COMING FROM THE NR 1 GENERATOR CONTROL UNIT. CREW DONNED OXYGEN MASKS, ACCOMPLISHED EMERGENCY CHECKLIST, PULLED NR 1 GENERATOR CONTROL UNIT OFF LINE, DECLARED AN EMEMay 26, 1999 · N577US · Boeing 737301SDR RAIA990534Gcu · failedFLT 5776 - ORD - WHT NR 1 ENGINE AND APU RUNNING, TRIED TO START NR 2 ENGINE AND HAD A MULTIPLE FAILURE OF MOST ELECTRIC ITEMS. MAINTENANCE REPLACED NR 1 GEN CONTROL UNIT. (M)May 26, 1999 · N803HK · Emb EMB145SDR 99ZZZM416Gcu · inoperativeFLT 545 - MDW-MCO - DURING TAXI, THE NR 1 FIELD LIGHT WOULD NOT RESET CAUSING PACK TO OVERHEAT AND FILL CABIN WITH SMOKE. GATE TURN BACK. REPLACED THE NR 1 GENERATOR CONTROL PANEL, OPS CHECKED GOOD. (M)May 20, 1999 · N772AT · Boeing 727227SDR RAIA990512Gcu · failedFLT 5793 - TRI - DURING NR 1 ENGINE START, SEVERAL ELECTRICAL MESSAGES APPEARED ON EICAS. WHEN NR 2 ENGINE WAS SHUT DOWN, ELECTRICAL SYSTEM WENT TO ELECTRICAL EMERGENCY. MAINTENANCE REPLACED NR 2 ENGINE GCU. (M)May 11, 1999 · N803HK · Emb EMB145SDR SWAA990782Gcu · failedNR 2 GENERATOR DROPPED OFF THE LINE. APU SWITCHED AND POWER RESUMED NORMAL. APPROX 4 MINUTES LATER NR 2 GENERATOR BUS POWER DROPPED OFF THE LINE AND IT WOULD NO LONGER POWER. FLIGHT ATTENDANT REPORTED A LOUD GRINDING NOISE AND WHAT THEY DESCRIBED AS A ENGINMay 1, 1999 · N321SW · Boeing 7373H4SDR USAASB99092Gcu · failedLGA - FLT 1290 - ON APPROACH TO LGA, DESCENDING THROUGH FL 180, CREW SMELLED A STRONG ELECTRICAL ODOR IN THE FLIGHT COMPARTMENT. CAPTAIN DECLARED AN EMERGENCY. FLIGHT LANDED WITHOUT INCIDENT AND TAXIED TO THE GATE. IT WAS NOTED THAT THE NR 2 GENERATOR CONTRApr 7, 1999 · N435US · Boeing 7374B7SDR DHL99720002Controller · inoperativeDURING CLIMBOUT, GEN NR 1 CARRIED ALL ELECTRICAL LOAD AT 50 KW. NR 1 CSD IN TEMP 120 DEGREES. NR 2 AND 3 GEN CARRIED NO LOAD. NR 2 AND 3 CSD IN TEMP 80 DEGREES C. ALL THREE GEN VOLTS AND FREQS NORMAL. FIVE MINUTES AFTER DEPARTURE THE LOADS EQUALLED OUT AND Apr 5, 1999 · N720DH · Boeing 727228SDR P2EA99077Gcu · failedMDW - FLT 703 - ABORTED TAKEOFF AT 103 KNOTS DUE TO FAILURE OF THE NR 1 GENERATOR BUS TRANSFER SYSTEM. THE NR 4 MAIN TIRE BLEW OUT DURING ABORTED TAKEOFF. REMOVED AND REPLACED NR 1 GENERATOR CONTROL UNIT IAW MM 24-21-81. OPS CHECK NORMAL. REMOVED AND REPLAFeb 28, 1999 · N209US · Boeing 737222SDR C2XA99IA165Gcu · failedSHV - FLT 3639 - PILOT REPORTED SMOKE IN THE COCKPIT IN CONJUNCTION WITH A NR 2 ACW FAULT INDICATION. THE AIRCRAFT LANDED AT SHV WITHOUT INCIDENT, WHERE MAINTENANCE REMOVED AND REPLACED THE NR 2 ACW GENERATOR CONTROL UNIT. THE AIRCRAFT OPERATIONALLY CHECKED GOFeb 26, 1999 · N17448 · Aerosp ATR42500SDR DL73K990345Gcu · malfunctionedON CLIMBOUT, APU OFF BOTH GEN ON, RECEIVED A SPIKE. LOST ALL ELECTRICAL PWR IN COCKPIT AND CABIN FOR A SPLIT SECOND. NO C/B POPPED, NO EQUIP LOSS. INSPECTED LT AND RT GEN HARNESS, NTF INSPEC ENG GEN AND BUSS TIE BREAKERS. NTF RAN GCU DIODE TEST, BATTERY TEFeb 21, 1999 · N314DA · Boeing 737232SDR MALA976317Gcu · failedRIGHT AC GEN LIGHT ILLUMINATED IN FLIGHT, UNABLE TO REST PER QRH. AIRCRAFT RETURNED TO DTW. MAINTENANCE REPLACED RT AC GEN CONTROL UNIT, OPS CHECK GOOD. ALL WORK IAW SAAB AMM.Jan 21, 1999 · N9CJ · Saab 340BSDR AWXA9900022Gcu · failedON TAXI OUT, SMOKE BELLOWED FROM THE F/O C/B, THE NR 1 GEN FELL OFF LINE. F/O PULLED THE C/B (GCU-1) WHERE THE SMOKE WAS COMING FROM, THEN SMOKE STOPPED. REMOVED AND REPLACED NR 1 GCU AND NR 1 GENERATOR BREAKER, RAN ENG OPS CK GOOD PER BMM 24-21-41.Jan 20, 1999 · N158AW · Boeing 7373G7SDR RAIA990117Gcu · failedFLT 5776 - ORD - NR 1 GENERATOR FELL OFF LINE. MAINTENANCE REPLACED NR 1 GENERATOR CONTROL UNIT. (M)Jan 15, 1999 · N802HK · Emb EMB145SDR HEEA059924Regulator · inopVOLTAGE REGULATOR INOPERATIVE.Dec 22, 1998 · N8045T · Bell 214STSDR 99ZZZM47Gcu · failedIN CRUISE, LEFT GENERATOR, LIGHT FLICKERED AND THEN THE LEFT GENERATOR DROPPED OFF LINE AND THE GENERATOR FIELD CIRCUIT BREAKER POPPED AND WOULD NOT RESET. AIRCRAFT RETURNED TO KETCHIKAN AND LANDED WITH NO PROBLEMS. AIRCRAFT IN HANGAR AND FOUND GENERATOR CONDec 11, 1998 · N242BM · Bag JETSTM3201
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