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 UALA2011061402932Gcu · faultyELEC GEN OFF R RIGHT GENERATOR CONTROL BREAKER (GCB) OPEN OR GENERATOR CONTROL SWITCH OFF, AND ENGINE NOT SHUT DOWN. ADVISORY. CREW COMMENTS: ATTEMPTED 1 RESET, UNSUCCESSFUL. APU NOW RUNNING FOR ELECTRICS. MSG-2431632 LATCHD TA MODE. REPLACED GCU PER MMJun 13, 2011 · N771UA · Boeing 777222SDR UALA2011060902851Gcu · faultyLEFT GEN TRIPPED OFF START OF TAKEOFF. RAN CHECKLIST AND DID NOT RESET. REPLACED LT ENG GCU. RAN BOTH ENGINES, SYSTEM WORKED NORMAL. REPLACED LT GEN TIE BREAKER. BPCU BITE CHECK HAD LT GEN DP TRIP MAIN BUS-OVERLAP ZONE MSG TWICE. GCU WAS REPLACED ON THE Jun 9, 2011 · N666UA · Boeing 767322SDR UALA2011060702788Gcu · faultyELEC GEN SYS L FAULTS. DUE TO RECENT HISTORY OF ELEC GEN SYS L FAULT, ACP FIM TASK 24-23-837. ACCOMPLISH FIM TASK INCLUDING WIRING CKS. INCLUDE OHMS AND CONTINUITY READINGS IN SIGNOFF. IF NO FAULTS ARE FOUND REPLACE THE RIGHT GCB (566-0549) PER AMM THE LEJun 5, 2011 · N218UA · Boeing 777222SDR TRBA2011068Gcu · inoperativeON FLIGHT 4739 WHILE ON THE GROUND BOTH ENGINES FEATHERED WHEN SHUT DOWN. NR 1 ENGINE AND NR 2 DC GEN FAULTED, AN ELECTRICAL BURNING ODOR FILLED THE COCKPIT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND INSTALLED NR 2 GENERATOR CONTROL UNIT ATR 72 JICJun 3, 2011 · N545AT · Aerosp ATR72212ASDR C2XA11RI088Gcu · inoperativeFLIGHT 2808 - EWR - FLIGHT CREW REPORTED THAT ON APU START RECEIVED APU FIRE INDICATION THAT CLEARED ITSELF UPON RE-START - APU RE-STARTED BUT ZERO AMPS. EWR MX PERFORMED FIRE DETECTION ON APU - NO FAULTS FOUND. MX REMOVED AND REPLACED APU GCU AND PERFORMED May 22, 2011 · N23139 · Emb EMB145XRSDR YENA20110520257Gcu · failedFLT 47 JFK-FLL, AIR RETURN BACK TO JFK- GEN 2 FAULT ON ECAM AFTER TAKEOFF AT 5000FT 250 KNOTS. CYCLE PUSH BUTTON GEN 2, NEVER CAME BACK ONLINE. REMOVED AND REPLACED ENGINE NR 2 GCU IAW AMM 24-22-34. OPS CHECK OK.May 20, 2011 · N715JB · Airbus A320232SDR CALA2011051200361Gcu · malfunctionedAFTER NR 2 ENG START IN AUS, THE APU GEN DISCONNECTED FROM BOTH B USES WHEN NR 2 ENG GEN CONNECTED. APU GEN WOULD NOT CONNECT TO ANY BUS AFTER THAT. THERE WAS A STRONG ELECTRICAL ODOR DURING T HIS EVENT. T/S AND FOUND APU GCU AT FAULT, WITH A GCU FAULT LIGHMay 12, 2011 · N33266 · Boeing 737824SDR UALA2011051102336Gcu · faultyAPU FIELD OFF LT IS ON. WHEN GND PWR WAS DISCONNECTED PLANE WENT DARK. HMG VERIFIED TO OP NORMAL AS PER MEL. NEED TO REPLACE APU GENERATOR PER MM. NEED LEAK CHECK AND SYS TEST PER MM. REPLACED GENERATOR PER MM. OPS CHECK OF APU GEN NORMAL. REPLACED GCU May 11, 2011 · N646UA · Boeing 767322SDR LR7A2011040600173Volt Regulator · overheatedON CLIMB OUT, FLIGHT CREW NOTED SMOKE COMING FROM THE NR 3 VOLTAGE REGULATOR. ISOLATED IAW QRH, RETURNED TO DEPARTURE AND LANDED. REPAIR ACCOMPLISHED BY REPLACING NR 3 GENERATOR, VOLTAGE REGULATOR, AND GENERATOR CONTROL PANEL IAW LOCKHEED SMP581 24-20.Apr 2, 2011 · N406LC · Lkheed 382GSDR UALA2011032401400Gcu · faultyAPU NO GO ON LINE WITH GENERATORS. AIR OUTPUT OK. NO TIME TO TS. REPLACED APU GEN CONTROL UNIT PER AMM. TEST OK, OPERATIONAL CHECK OKAY.Mar 23, 2011 · N211UA · Boeing 777222SDR UALA2011032101355Gcu · inoperativeCREW REPORTS APU GEN WILL NOT COME ON LINE. APU GEN INOP PER MEL. REPLACED GENERATOR CONTROL UNIT PER MM. RAN ENGINE. OPS CHECK OK.Mar 21, 2011 · N798UA · Boeing 777222SDR YENA20110213196Gcu · failedFLT 523 EWR-MCO, CREW DECLARED EMERGENCY DUE TO DURING CRUISE ELEC MALFUNCTIONS CAUSED NUMEROUS FAULTS INCLUDING SEC 3, FAC 2, F/O PFD, F/O ND, LWR ECAM, COCKPIT DOOR, CABIN LIGHTING, LIVE TV. ALL OF THESE ITEMS FLICKERED ON/OFF NUMEROUS TIMES. THE ECAM ACTIFeb 13, 2011 · N566JB · Airbus A320232SDR A6WA201140063Gcu · malfunctionedAC1 AUTOTRANSFER AND AC2 AUTOTRANSFER CAUTION MSG`S ON GROUND. WILL NOT ACCEPT EXT AC PWR. WILL NOT ACCEPT GEN PWR. MAIN GEN`S WON`T SUPPLY OPPOSITE SIDE. R & R GCU NR 3 IAW AMM 24-11-07. PERFORMED OPS CHECK IAW 24-22-01. OPS CK GOOD AT THIS TIME.Jan 28, 2011 · N466AW · Cndair CL6002B19SDR CALA2011052000374Gcu · malfunctionedDURING CLIMBOUT LEVEL AT 10000FT 300KTS CAPTS EFIS SCREENS BEGAN TO FLICKER ACCOMPANIED BY A CASCADE OF LIGHTS EICAS MSGS AND THEN A STRONG ELECTRICAL BURNING SMELL/SMOKE STRONGEST ON CAPTS SIDE. OVERWEIGHT APPCH AND TOUCHDOWN. BRAKES OK CREW EXPERIENCED A LNov 19, 2010 · N18119 · Boeing 757224SDR AALA20100929JFK01Gcu · failedJFK - INFLIGHT DFW-LHR. CREW REPORTED RIGHT ENGINE GENERATOR FAILED IN FLIGHT. EMERGENCY DECLARED DIVERTED JFK LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED RIGHT GENERATOR CONTROL UNIT. SYSTEM GROUND CHECKED NORMAL OPERATION.Sep 29, 2010 · N351AA · Boeing 767323SDR A6WA201040703Gcu · malfunctionedWHILE IN FLT, AC 1 AUTO TRANSFER AC BUS 1 GEN 1 OFF AND LT WINDOW HEAT CAUTION MSG ILLUMINATED ON ED1 CW QRH FLAP .5 SPEED ON ED2 IN FLAP SELECTION OTHER AS MSG. R & R GEN CONTROL UNIT.Sep 18, 2010 · N444ZW · Cndair CL6002B19SDR AXSA996FE8/18/10Control Unit · inoperativeFLIGHT WIG046A DEPARTED MHT-MVY NORMALLY. WHILE CLIMBING THRU 4500 FEET THE PILOT NOTED ELECTRICAL FUMES. THE PILOT DID NOT NOTICE SMOKE BUT ELECTED TO RETURN TO MHT AS A PRECAUTION AND LANDED WITHOUT INCIDENT. MAINTENANCE EVALUATED THE AIRCRAFT AND DETERMIAug 18, 2010 · N996FE · Cessna 208BSDR AALA20100807TUL02Gcu · inoperativeMEM - CREW REPORTED RIGHT GENERATOR FAILED ALONG WITH CROSS TIE LOCK-OUT DURING APPROACH. EMERGENCY DECLARED LANDED MEM WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED RIGHT GENERATOR CONTROL UNIT. SYSTEM GROUND CHECKED NORMAL OPERATION.Aug 7, 2010 · N7548A · Doug DC982SDR AALA20100808TUL01Gcu · inoperativeSLC - INFLIGHT SEA-DFW. CREW REPORTED ELECTRICAL POWER INTERRUPTIONS AND AUXILIARY POWER UNIT FAULT LOW OIL PRESSURE. EMERGENCY DECLARED, DIVERTED SLC LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED GENERATOR CONTROL UNIT. SYSTEM GROUND CAug 7, 2010 · N435AA · Doug DC983SDR C2XA10CL127Gcu · faultyCLE FLT 5839 THE CREW REPORTED AN APU GENERATOR OFF BUS MESSAGE ON TAKEOFF. MAINTENANCE REPLACED THE APU GENERATOR CONTROL UNIT. OPERATIONAL CHECKS WERE GOOD.Aug 7, 2010 · N14173 · Emb EMB145XRSDR UALA2010072302627Gcu · faultyLT & RT ENG GEN FAILURE, RTFL. RT GENERATOR TRIPPED OFF LINE AND UNABLE TO RESET. REPLACED GCU(S) AND OPERATIONS CHECK GOOD IAW MM.Jul 22, 2010 · N212UA · Boeing 777222SDR USAA20100716BB042Circuit Board · faultedPHL FLT 740 EN ROUTE SJU TO PHL. DURING APPROACH, RECEIVED "L ENG LP PUMP" MESSAGE. THE LEFT ENGINE UNSPOOLED AND THE LEFT ENGINE OIL PRESSURE WENT TO 16 PSI AND WITHIN 45 SECONDS CAME BACK TO ALL NORMAL INDICATIONS. THE FLIGHT LANDED WITHOUT FURTHER INCIJul 13, 2010 · N939UW · Boeing 7572B7SDR MZZA2010063000314Gcu · failedELECTRICAL SOURCE OFF LIGHT AND DRIVE LIGHT ON NR 2 GEN SMELL OF ACRID, SMOKE POSSIBLE OIL OR ELECTRICAL SOURCE. PERFORMED INSP PER AMM 05-51-26. FOUND NR 2 GCU BURNED OUT. CHECKED WIRING & NO EVIDENCE OF HEAT DAMAGED. REPLACED NR 2 GCU AND PERFORMED TEST Jun 29, 2010 · N27734 · Boeing 737724SDR YENA20100623086Gcu · failedFLT 35 JFK-PBI (ON GROUND) OPERATIONAL CHECK OF EMERGENCY GENERATION SYSTEM FAILED ON WEEKLY CHECK. REMOVED AND REPLACED GCU 1 XE IAW AMM 24-24-34-04. OPS CHECK NORMAL.Jun 23, 2010 · N633JB · Airbus A320232SDR AALA20100603DFW04Gcu · faultyDFW - CREW REPORTED MULTIPLE ELECTRICAL PROBLEMS. FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED GENERATOR CONTROL UNIT. SYSTEM GROUND CHECKED NORMAL OPERATION.Jun 3, 2010 · N70504 · Doug DC982SDR UALA2010051201618Gcu · failedBOTH UTILITY BUSSES SHED WHEN THROTTLES ADVANCED FOR TAKEOFF. REPLACED RIGHT GCU AND RELAY K10109 PER MM. TOOK ACFT OFF GATE FOR ASSURANCE RUN AND CONFIGURED FOR TAKEOFF. ADVANCED THROTTLES TO TAKEOFF POWER SEVERAL TIMES, OPS CHECKS NORMAL.May 12, 2010 · N590UA · Boeing 757222SDR UALA2009112303654Gcu · malfunctionedRT GEN FIELD MAN RESET LIGHT IS ON. REPLACED GCU, OPS CHECKS GOOD.Nov 21, 2009 · N665UA · Boeing 767322SDR CALA2009112000685Gcu · malfunctionedLT AND RT UTILITY BUSES TRIPPED FOR ABOUT 3-4 SECONDS IN FLIGHT. ALSO LT AND RT UTILITY BUS MESSAGE APPEARED ON EICAS. UTILITY BUSES RESET THEMSELVES. GALLEY POWER AND VIDEO TURNED OFF. T/S PER MM 24-22-00, REMOVED AND REPLACED LT AND RT GCU AND BPCU AS PENov 19, 2009 · N57111 · Boeing 757224SDR 2009FA0000824Suppressor · failedWHILE RETURNING FROM A SALES DEMONSTRATION, PILOT REPORTED SMOKE IN THE COCKPIT AND LANDED. UPON FURTHER INVESTIGATION, FOUND THAT VOLTAGE SUPPRESSOR D4 (REF WIRING DIAGRAM 91-34-20 FIG 4 SHEET 5 OF 5) HAD FAILED. SUPPRESSOR D3 (MOUNTED DIRECTLY NEXT TO D4) Oct 9, 2009 · N402KC · Piper PA46350PSDR UALA2009100703152Gcu · malfunctionedAT ABOUT 500FT' ON FINAL APPROACH L GEN TRIPPED OFF LINE. BITE TEST OF BPCU SHOWED "IDG HIGH RISE TEMP" AND "RPL GCU (D9)". MSGS CALL FOR RPL OF GCU. REPLACED LEFT ENG GCU. IDG OIL LEVEL WAS OK. IDG ELEC CONNECTOR WAS CLEANED. BITE TEST WAS GOOD AND MSGSOct 6, 2009 · N589UA · Boeing 757222SDR UALA2009100203094Gcu · malfunctionedEICAS MSG L GEN OFF DISPLAYED AT FL 240. OPERATED NORMAL AFTER RESET. REMOVED AND REPLACED LEFT GENERATOR CONTROL UNIT AND TEST PERFORMED. FOUND GOOD.Oct 1, 2009 · N597UA · Boeing 757222SDR UALA2009092503027Gcu · faultyELEC GEN DRIVE L LEFT IDG FAULT (LOW INTERNAL OIL PRESSURE). REPLACED LT GCU AND SERVICED LT IDG, RAN ENGINE. GEN OPS CHECK OKAY. FOUND GEN DRIVE LIGHT INOPERATIVE. L IDG REPLACEMENT DEFERRED. HAVE ALL PARTS IN HAND, REMOVING IDG AT THIS TIME. REPLACED ISep 24, 2009 · N220UA · Boeing 777222SDR DL76L091471Gcu · failedATB RIGHT GEN OFF LIGHT STARTED APU OK, BUT WILL NOT PICKUP RIGHT BUS. REPLACED RIGHT GCU AND BPCU RUN-UP AND OPS NORMAL. ETOPS CATEGORY 'B': DIVERSION OR TURNBACK.Sep 13, 2009 · N177DN · Boeing 767332SDR 2009F00067Gcu · malfunctionedLEFT GEN CAUTION LIGHT ON DURING T/O ROLL. ABORTED T/O. RESET GEN AS PER CHECKLIST. GOOD VOLTAGE OBSERVED BUT GEN WOULD NOT RESET TO ON. ON POSTFLIGHT OBSERVED FLASHING SYS LIGHT ON LT GCU IN APU COMPARTMENT.Sep 9, 2009 · N676QS · Cessna 560XLSDR UALA2009083102705Gcu · malfunctionedLEFT IDG FAULT (LOW INTERNAL OIL PRESSURE). MESSAGE ILLUMINATED LEAVING FL260. APU STARTED NORMALLY. REPLACED GCU AND CORE WIRE HARNESS W0623. RAN ENGINE, ALL FUNCTIONS NORMAL.Aug 28, 2009 · N215UA · Boeing 777222SDR UALA2009070201907Gcu · faultyLOST BOTH GENERATORS. RTFL. RMV'D & RPL'D NR 1 & NR 2 GCU(S) DUE TO RECENT LOSS OF POWER. CKS OK WITH CFDS. RAN ENG, OPS OKAY.Jul 2, 2009 · N494UA · Airbus A320232SDR UALA2009060501617Gcu · inoperativeELEC GEN SYS L STATUS MESSAGE. FOLLOWED BY GALLEY LOAD SHED INDICATIONS. BUS TIE SWITCH DID NOT INDICATE ISOLATED HOWEVER NO CONNECTION ON SYNOPTIC PAGE TO BUS TIE. APU GEN & BUG ALSO DID NOT INDICATE IT WAS POWERING THE L BUS. CREW CYCLED L GEN SWITCH TO Jun 4, 2009 · N785UA · Boeing 777222SDR UALA2009050601304Gcu · malfunctionedF/A REPORT CABIN LIGHTING NO SMOKE LIGHTS F/A CALL LIGHTS AND EXIT LIGHTS FLICKERING THROUGHOUT. MAINT TEXT: SUSPECT GENERATOR MALFUNCTION. NEED BOTH ENGINE RUN TO ISOLATE SUSPECTED GENERATOR. FOUND THRESHOLD FLUORESCENT LIGHT ABOVE DOOR 1L FLICKERING, RELAMay 6, 2009 · N439UA · Airbus A320232SDR UALA2009042001146Gcu · failedAPU INOP ELECTRICAL. UNABLE TO LOAD GENERATOR. REPLACED APU GENERATOR UNIT. OPS CHECKS GOOD. REPLACED GENERATOR CONTROL UNIT. OP CHECKS GOOD.Apr 19, 2009 · N670UA · Boeing 767322SDR UALA2009040600982Gcu · malfunctionedDURING TOWING APU GEN FELL OF LINE, LEFT 115 VAC MAIN BUS TIE HAS UNBALANCED CURRENT. REPLACED APU GCU.Apr 4, 2009 · N776UA · Boeing 777222SDR HNAA2009040700106Gcu · failedLEFT ALTERNATING CURRENT BUS FAILED IN FLIGHT. REMOVED AND REPLACED NR 1 ALTERNATING CURRENT GENERATOR CONTROL UNIT AND CLEANED CONNECTOR TO NR 1 ALTERNATING CURRENT GENERATOR. GROUND OPERATIONS CHECK GOOD. REFERENCE AIRCRAFT MAINTENANCE MANUAL AMM 24-21-02Apr 3, 2009 · N816EX · Dhav DHC8102SDR CA090316003Volt Regulator · unserviceable(CAN) SMELL OF SMOKE WAS PRESENT IN THE COCKPIT. ALL POWER WAS SHUTOFF IN ACFT. ACFT LANDED WITHOUT 0 INCIDENT. THE AC GENERATOR VOLTAGE REGULATOR WAS FOUND DEFECTIVE. REGULATOR REPLACED AND GROUND CHECKED SERVICEABLE.Mar 11, 2009 · Cvac 340CVACSDR USAA20090224BB039Gcu · faultySTT FLT 1041 EN ROUTE STT TO CLT. DURING CLIMBOUT FROM STT, AT APPROXIMATELY 800 FEET, THE CAPTAIN'S COCKPIT INSTRUMENTS WENT BLANK. THE CREW PERFORMED A CROSS TIE RESET, AND GOT THE INSTRUMENTS MOMENTARILY OPERATING AGAIN, THEN FAILED ONCE MORE. AN EQUIPMFeb 20, 2009 · N918UW · Boeing 757225SDR HNAA2009022300072Gcu · intermittentEMERGENCY LIGHT CAME ON DURING FLIGHT. FOUND AC GENERATOR CONTROL UNIT BAD. REMOVED AND REPLACED AC GENERATOR CONTROL UNIT ON BOTH ENGINES. REMOVED AND REPLACED FUSES 2421 F8 AND F10, OPS CHECK GOOD.Feb 17, 2009 · N930HA · Dhav DHC8102SDR HNAA2008122000352Gcu · odorELECTRICAL SMELL ABOUT CABIN CIRCUIT BRAKER PANEL. INSPECT CABIN CIRCUIT BRAKER PANEL NO DEFECT FOUND. FOUND NUMBER 1 GENERATOR CONTROL UNIT BURNED SMELL. REMOVED AND REPLACE GENERATOR CONTROL UNIT AND STARTER GENERATOR REFERENCE HA 300 SEQUENCE 5. REMOVED Dec 20, 2008 · N807EX · Dhav DHC8102SDR USAABB08164Gcu · loosePHX - FLT 45 PHX TO KOA. UPON ROTATION, THE LEFT AC BUS TRIPPED OFF AND COULD NOT BE RESET, OR POWERED BY ANOTHER GENERATOR. THE FLIGHT RETURNED TO PHX AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE BITE CHECKED THE BUS PROTECTION CONTROL UNIT (BPCU) ANDOct 31, 2008 · N905AW · Boeing 7572S7SDR UALA2008111303975Gcu · malfunctionedLEFT GENERATOR FAILURE. FLT DIVERTED. BELIEVED TO BE A POWER TRANSFER PROBLEM. REPLACED L ENG GCU. CHECKS OK ON B PCU.Jul 26, 2008 · N668UA · Boeing 767322SDR AALA200801639Gcu · failedSTL INFLIGHT T2361/17JUN ORD TO DFW. CREW REPORTED LOSS OF RT AC BUD POWER AND RT ENGINE DRIVEN GENERATOR WOULD NOT HOLD A LOAD. LANDED STL WITHOUT INCIDENT. REPLACED GENERATOR CONTROL UNIT. SYSTEM GROUND CHECKED NORMAL OPERATION. (A)Jun 17, 2008 · N9402W · Doug DC983SDR 2008UALA02956Gcu · faultyELEC GEN OFF R RIGHT GENERATOR CONTROL BREAKER (GCB) OPEN OR GENERATOR CONTROL SWITCH OFF, AND ENGINE NOT SHUT DOWN. ADVISORY MSG01- NOT ACTIVE DESCENT MODE DEPENDENT; INTEGRATED DRIVE GENERATOR (R) FREQUENCY IS LOW. DB- GENERATOR CONTROL UNIT (R) MSG02- LATMay 20, 2008 · N217UA · Boeing 777222SDR ASAA0852826Gcu · defectiveDURING CLIMB APU GENERATOR INDICATED 16 AMPS WITH APU NOT RUNNING. REPLACED GCU GENERATOR CONTROL UNIT.Apr 21, 2008 · N584AS · Boeing 737890
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