JASC 2420

Service difficulty reports · 1,302

Reports filed under 2420 · AC Generation System, 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 = '2420'
  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 RRXA98075Resistor · overheatedON LANDING, NR 4 GEN UNPARL'D LIGHT AND BUS POWER FAIL LIGHT ON, SMOKE IN COCKPIT. FOUND NR 4 25 WATT RESISTOR OVERHEATED, ENTERED AS DMI NR 803339 IAW MEL 24-1 CAT C DUE DATE 4-6-98 PLACARD INSTALLED. *S/D* SERVICED OIL CAVITIES ON NR 4 CSD/GEN ASSY. RESEMar 27, 1998 · N8087U · Doug DC871FSDR USAAD98046Control Panel · failedCMH - FLT 920 - ON TAKEOFF THE AC CROSSTIE LOCKOUT AND RIGHT GENERATOR OFF LIGHT ILLUMINATED. THE AIRCRAFT RETURNED TO THE FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE RIGHT GENERATOR CONTROL PANEL. (M)Mar 20, 1998 · N946VJ · Doug DC931SDR 9804509860Gen Contl Pnl · malfunctionedDURING CLIMBOUT, THE LEFT ENGINE DRIVEN GENERATOR TRIPPED OFF LINE TOGETHER WITH AN AC CROSSTIE LOCKOUT. THE FLIGHT CREW SUCCESSFULLY RESET THE LEFT ENGINE DRIVEN GENERATOR. RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE GENERATOR CONMar 18, 1998 · N769NC · Doug DC951SDR USAASB98066Circuit Breaker · failedCLT - FLT 1503 - ON CLIMB-OUT FROM CLT, THE NR 1 GENERATOR WAS LOST AT APPROXIMATELY 6,000 FEET. CREW PUT THE APU GENERATOR ON LINE AND IT CEASED AT 11,000 FEET. WITH ONLY ONE POWER SOURCE LEFT, CREW RETURNED TO FIELD AT CLT AND LANDED WITHOUT FURTHER INCIDENMar 16, 1998 · N243US · Boeing 737201SDR TC8A98013Generator · malfunctionedDURING TAXI OUT, MULTIPLE GENERATOR UNPARALLELED LIGHT ILLUMINATED 3, 4 AND 5 IN SEQUENCE. GENERATORS WOULD NOT PARALLEL. ENTERED IN DMI 8145 PER TCA MEL 24-8 CATEGORY C PLACARD INSTALLED.Mar 3, 1998 · N182SK · Doug DC8F55SDR TC8A98012Control Panel · failedON T/O, NR 2 AND NR 3 GENERATOR UNPARALLELED LIGHTS ILLUMINATED. VOLTS AND FREQS NORMAL, UNABLE TO PARALLEL, ABORTED TAKEOFF AT 80 KNTS. REMOVED AND REPLACED NR 1 GENERATOR CONTROL PANEL. ALSO, ADJUSTED VOLTAGE NR 2, 3, 4 ENGINES, OPS CHECKS OK AT VARIOUS PMar 3, 1998 · N182SK · Doug DC8F55SDR CA980305007Ram Air Turb · failed(CAN) THE AIR DRIVEN GENERATOR (ADG) MANUALLY DEPLOYED FOR TEST. AFTER 10 MINUTES OF NORMAL OPERATION THE RPM DROPPED AND ADG WENT OFF LINE.Feb 25, 1998 · Cndair CL6002B19SDR AU980235Wire · chafed(AUS) LT ENGINE MAIN GENERATOR FAILED DUE TO CHAFED CABLES. APU WAS STARTED BUT FAILED DUE TO FAULTY OIL QUANTITY PROBE.Feb 21, 1998 · Boeing 767338SDR CA980318029Panel · failed(CAN) THE FLIGHT CREW NOTED THE LT GENERATOR TIE NOT INDICATING OPEN AS COMMANDED. LT POWER PANEL REPLACED.Feb 17, 1998 · Beech 1900CSDR 98FDEA00080Idg · failedGEN 3 OFF LIGHT ON CLIMBOUT VOLTS O/FREQ 400,1 RESET ATTEMPTED. SEE PREVIOUS. PERFORMED T/SHOOTING PE. 3-13 WAS OPEN. REMOVED AND REPLACED NR 3 IDG PER MM 24-21-02. RUN ENGINE CHECKED OPERATION OF NR 3 IDG, FOUND NORMAL PER JRH MD-11.Feb 2, 1998 · N612FE · Doug MD11FSDR 98ZZZX743Relay · inoperativeDFW/ELD - FLT 1253 - WHILE IN CRUISE AT FL 170, CREW RECEIVED RT GEN FAIL LIGHT. QRH CONSULTED AND GENERATOR SWITCH - OFF - RESET - ON INSTRUCTIONS FOLLOWED. GEN CAME BACK ON-INE. APPROX 3 MINUTES LATER, RT GEN FAIL LIGHT AGAIN ILLUMINATED. QRH WAS FOLLOWJan 18, 1998 · N847LS · Frchld SA227DCSDR 9800553226Relay · intermittentAFTER TAKEOFF, RECEIVED ECAM WARNING ELEC ESS BUSSES ON BAT. RETURNED TO YVR AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED RELAY 16XC, OPERATIONAL CHECK OK.Jan 10, 1998 · N326US · Airbus A320211SDR 98ZZZM202Control Unit · failedCLT - FLT 1754 - CLIMBING THROUGH 12,000 FT, THE LEFT GENERATOR BECAME INOPERATIVE. THE APU WAS ON MEL. THE AIRCRAFT RETURNED TO THE FIELD WITHOUT INCIDENT. MAINTENANCE REPLACED THE LEFT GENERATOR AND CSD. THE APU GENERATOR AND CONTROL UNIT WERE ALSO REPLAJan 4, 1998 · N824US · Doug DC982SDR MALA975839Connector · contaminatedINFLIGHT THE NR 1 AC GENERATOR CAUTION LIGHT ILLUMINATED. PERFORMED QRH, CYCLED SWITCH ONCE AND NR 1 AC GENERATOR REMAINS ILLUMINATED. AIRCRAFT RETURNED TO DTW. MAINTENANCE FOUND NR 1 AC GENERATOR CANNON PLUG TO BE CONTAMINATED, CLEANED OUT CONTAMINATION THDec 29, 1997 · N826MA · Dhav DHC8102SDR DL73E972554Transformer · intermittentDURING CLIMB, NR 1 GEN BUSS TRIPPED AND WOULD NOT RESET/APU WOULD NOT PICK UP BUSS EITHER. REPLACED NUMBER 1 ENG CURRENT TRANSFORMER, CHECKS GOOD.Dec 5, 1997 · N243WA · Boeing 737247SDR DL73E972553Relay · stuckDURING CLIMBOUT, LT GEN BUSS TRIPPED OFF AND APU WOULD NOT PWR THE BUSS. REPLACED NR 1 GEN CONTROL RELAY. INSP ENG GEN LEADS AND DIFFERENTIAL LOOPS. ALL OK, RAN ENG AT T/O PWR.Dec 5, 1997 · N243WA · Boeing 737247SDR DL73E972552Gen Contl Pnl · failedDURING CLIMBOUT, LEFT GEN BUSS TRIPPED (NO VOLTS OR FREQS) AND APU WOULD NOT PWR THE BUSS. REPLACED LEFT GEN CONT PANEL, OPERATION OF GEN AND XFR SYS OP CKS GOOD.Dec 5, 1997 · N243WA · Boeing 737247SDR 97UAL900833Essential Power · lossABORTED TAKEOFF AT 88 KNOTS DUE TO LOSS OF ESSENTIAL POWER. NR 3 ENGINE OIL TEMPERATURE GAUGE DEAD. OIL PRESSURE 25 PSI ON TAXI-IN. PRECAUTIONARY SHUT DOWN OF NR 3 ENGINE. *S/D* INSPECTED MAIN OIL SCREEN AND CSD MAGNETIC PLUG. NO METAL FOUND. ACCOMPLISHNov 18, 1997 · N7467U · Boeing 727222SDR AALA972120Circuit Breaker · trippedMVD - GOT FORWARD EQUIPMENT VALVE EICAS WITH EQUIPMENT COOLING VALVE LEFT ON OVERHEAD PANEL AFTER TAKEOFF. VALVE REMAINED ILLUMINATED WHEN EQUPMENT COOLING SWITCH WAS PLACED TO STANDBY, SHORTLY AFTER FORWARD EQUIPMENT OVERHEAT EICAS ILLUM. FOUND ON PANEL P6-Nov 6, 1997 · N366AA · Boeing 767323SDR TWAA9712501Gen Contl Sw · failedLAX - FLT 840 - DURING CLIMB, LEFT GENERATOR FIELD LIGHT ILLUMINATED, LEFT GEN CONTROL SWITCH ILLUMINATED, APU WOULD NOT START. REPLACED LEFT GENERATOR CONTROL SWITCH. OPERATED ENGINE AND APU. ALL CHECKS NORMAL. CK-C 6B 8-7-97 LAX. (X)Oct 17, 1997 · N606TW · Boeing 767231SDR AALA971788Relay · failedMIA - FLT 0063 - LEFT GENERATOR 'OFF' AND 'FIELD' LIGHTS CAME ON 15 MINUTES PRIOR TO LANDING. IDG REPLACED PER E58, NO HELP. REPLACED K109 RELAYS, PERFORMED SYSTEM CHECK, ISOLATED AND LOAD SHARED WITH APU ENGINES. ALL OPS CHECKS GOOD. (X)Sep 12, 1997 · N384AA · Boeing 767323SDR 9717672296Wire · failedON DESCENT, CREW REPORTED AN ODOR SIMILAR TO WIRES SMOLDERING. NO INDICATIONS OF MALFUNCTIONS AND NO SMOKE OR SMELLS IN MAIN CABIN. DETECTED FUMES BEHIND SECOND OFFICER'S PANEL BY NR 1 GENERATOR CONTORL PANEL. REPAIRED BROKEN WIRE R408 AND REPLACED THE NR 1Sep 11, 1997 · N296US · Boeing 727251SDR RAIA970912Contactor · failedSTL - FLT 7023 - RIGHT GENERATOR CAPTION ILLUMINATED, GENERATOR WOULD NOT RESET. MAINTENANCE REPLACED RIGHT START CONTACTOR. (X)Sep 9, 1997 · N434AM · Bag JETSTM3201SDR CA970904015Gen Control Unit · failed(CAN) GENERATOR OFF LIGHT CAME ON IN FLIGHT, AFTER 10 SECONDS ELAPSED THE LIGHT EXTINGUISHED. CYCLE REPEATED UNTIL THE GENERATOR SWITCH SELECTED TO OFF. THE GENERATOR CONTROL UNIT AND LOAD CONTROLLER WERE REPLACED.Aug 27, 1997 · Doug DC1030SDR CA970904039Wire · failed(CAN) DURING FLIGHT, THE NR 1 INVERTER CAPTION LIGHT WOULD COME ON, INDICATING INVERTER FAILURE, THEN THE 26 VAC PILOT GYRO HORIZON CIRCUIT BREAKER WOULD TRIP AND SELECTION OF NR 2 INVERTER WOULD ALSO INDICATE FAILURE. FAILURE SEEMED TO OCCUR DURING RIGHT TUAug 21, 1997 · Beech 1900CSDR HEEA0010791Generator · failedGENERATOR WILL NOT COME ON.Aug 20, 1997 · N1547D · Skrsky S76ASDR COMA9760135Relay · failedAC ESS BUS FAILED AFTER NR 1 ENGINE START. REPLACED RELAY K3XD.Jul 20, 1997 · N960CA · Cndair CL6002B19SDR HEEA0010509Generator Contrl · failedA/C GENERATOR WON'T COME ON LINE.Jul 16, 1997 · N4253S · Skrsky S76ASDR AALA971281Circuit Breaker · trippedORD - FLT 83 - APU GENERATOR WILL NOT HOLD A LOAD. RESET NOT SUCCESSFUL. APU BUSS POWER CIRCUIT BREAKER RECYCLED. APU LOAD CHECK CARRIED OUT. (X)Jul 13, 1997 · N369AA · Boeing 767323SDR GTIA9700338Relay · failedPIT - FLT 202 - APPARENTLY THE RIGHT A/C BUS HAS AN APU RELAY STICKING WHICH WILL NOT ALLOW ANY OTHER POWER SOURCE TO POWER THE RIGHT A/C BUS. THIS OCCURS EVEN WITH THE APU SHUT DOWN. RESET CROSS-TIE RELAY. APU GEN SYSTEM INOP. TRANSFERRED DMI LOG NR 00712Jul 7, 1997 · N934ML · Doug DC931SDR GTIA9700316A/C System · malfunctionedMCO - FLT 503 - CLIMBING THROUGH 700 FEET, LOSS OF L A/C DISTRIBUTION SYSTEM. PER FCOM, ATTEMPTED 1 RESET, UNSUCCESSFUL, L ENGINE GEN WILL NOT STAY ON LINE. CONCURRENTLY WITH ABOVE, A/C X-TIE LOCKOUT. PER FCOM, POWERED L, A/C DIST SYSTEM WITH APU GEN, AND CJun 20, 1997 · N934ML · Doug DC931SDR CA970620017Gen Control Unit · failed(CAN) LOST #3 MAIN BUS AND FLIGHT STATION BUS ON TAKEOFF. TAKEOFF REJECTED. FOUND GENERATOR CONTROL UNIT AT FAULT. GCU FROM GENERATOR #3 SWAPPED WITH APU'S GCU SERVICEABLE.Jun 7, 1997 · Lkheed 10113853SDR 97ZZZM705Connectors · burnedPHX - FL 1, AIRCRAFT EN ROUTE PIT-LAX WITH THE RIGHT IDG ON MEL AND THE APU OPERATING. IN CRUISE BETWEEN ABQ AND PHX, CREW RECEIVED THE LEFT GENERATOR 'OFF' LIGHT. FLIGHT DIVERTED TO PHX AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED THE LEFT GENJun 5, 1997 · N616AU · Boeing 7572B7SDR CA970528010Generator · ground fault(CAN) DURING CRUISE FLIGHT THE #3 ENGINE DRIVEN GENERATOR TRIPPED OFF LINE DUE TO A DIFFERENTIAL FAULT INDICATION. CSD DISCONNECTED AND FLIGHT CONTINUED WITHOUT INCIDENT. UNABLE TO DUPLICATE, GENERATOR REPLACED.May 26, 1997 · Boeing 727171CSDR HAIHEEA9857Gcu · malfunctionA/C GENERATOR CAUTION LIGHT DOESN'T COME ON WHEN ENGINE IS AT IDLE.May 13, 1997 · N4253S · Skrsky S76ASDR 97FDEA00267Wire · failedSFS: WRI 24 20-2120 ON CLIMB-OUT PASSING FL200, ELECTRICAL JOLTS STARTED AGAIN, AFFECTING CAPTS ATT IND PFD NAV DISPLAY ECAM AND ENG INSTRUMENTS. ACARS LOCKED UP AND AUTO PILOT. PERFORMED BITE CHECK ON GPCU. LT GEN SYS, PMG/FIELD/WRNG/GCU. CHECKED WIRING AMay 8, 1997 · N419FE · Airbus A310222SDR CA970513021Generator · failed(CAN) #1 GENERATOR DRIVE LIGHT CAME ON DURING CLIMB. AIRCRAFT RETURNED FOR FUEL AND AIRCRAFT OPERATED AS PER MEL. GENERATOR TO BE REPLACED.May 7, 1997 · Boeing 75728ASDR ORJA9757Generators · malfunctionedSTARTING TO TAXI, BOTH GENERATORS DROPPED OFF-LINE. MAINTENANCE PERFORMED BIT CHECK ON ALL GCU'S; RAN BOTH ENGINES; LOADED ALL SYSTEMS; UNABLE TO GET THE GENERATORS TO DROP. RAN ALL CHECKS IAW MM 24-20-01, PAGE 501. (X)May 2, 1997 · N836RA · Doug DC983SDR HAIHEEA9729Generator · failedA/C GENERATOR WOULD NOT COME ON LINE.Apr 30, 1997 · N2743E · Skrsky S76ASDR HAIHEEA9706Generator · failedGENERATOR WILL NOT COME ON LINE.Apr 30, 1997 · N1545X · Skrsky S76ASDR MVH0064268Sensor · malfunctionedINVERTER LIGHT ILLUMINATES OCCASIONALLY. REMOVED AND REPLACED 115 VOLT SENSOR.Apr 24, 1997 · N63CF · Aerosp SA365NSDR CA970421034Panel · intermittent(CAN) DURING FLIGHT #2 GENERATOR TRIPPED OFF LINE DUE TO UNDER EXCITATION AND UNDER FREQUENCY. GENERATOR CONTROL PANEL REPLACED.Apr 3, 1997 · Boeing 727171CSDR CA970421023Control Unit · intermittent(CAN) FLIGHT CREW REPORTED SMOKE COMING FROM BEHIND THE FIRST OFFICER'S CIRCUIT BREAKER PANEL WHILE THE AIRCRAFT WAS ON THE GROUND. INSPECTED ALL ELECTRICAL COMPONENTS AFT OF F/O, ALL CIRCUIT BREAKERS CHECKED OK, GROUND RUN OK. FERRY FLIGHT CARRIED OUT OK. MAIMar 27, 1997 · Fokker F28MK1000SDR AALA970557Relay · defectiveDFW - FLT 241 - AFTER TAKEOFF DFW DURING CLIMB-OUT, RT ENGINE GENERATOR OFF LIGHT ILLUMINATED. STARTED APU BUT APU GENERATOR DID NOT SHOW FREQUENCIES OR VOLTS. AIRCRAFT RETURNED TO DFW AND LANDED WITHOUT INCIDENT. REPLACED RT ENGINE CSD AND GENERATOR. REPLMar 19, 1997 · N244AA · Doug DC982SDR 97UAL900237Cable Splice · damaged3/8/97 MECHANIC DISCOVERED HEAT DAMAGED NR 1 APU GENERATOR FEEDER CABLE SPLICES. SPLICES INSTALLED AT FACTORY. DURING C-CHECK, SPLICES COMMON TO APU GENERATOR NR 2 WERE FOUND TO HAVE SIMILAR DAMAGE. DAMAGE WAS IDENTIFIED BY SPLIT INSULATION AND MELTED SPACEMar 8, 1997 · N173UA · Boeing 747422SDR 97ZZZM500Connector · groundedAT BLOCK ON ENGINE START UP NOTICED SMOKE IN COCKPIT ON TWO ATTEMPTS. REPAIRED WIRING AT CANNON PLUG BUS PROTECTION PANEL AND AT A/C CONTROL PANEL, P/N 50129011, RETURNED AIRCRAFT TO SERVICE. (M)Mar 6, 1997 · N55FB · Doug DC8F55SDR DLM88970361Control Unit · malfunctionedCRUISE AT FL 330, APU FAULT LIGHT AND APU OIL PRESSURE LIGHT ILLUMINATED AND APU SHUTDOWN AUTOMATICALLY. REPEAT EVENT. CHECKED APU FAULTS, NONE. CHECKED APU OIL, GOOD. RAN APU, OK FOR SERVICE. CROSSTIE LOCKOUT ON MCO AND PLA. REPLACED A/C BUS CONTROL UNIFeb 26, 1997 · N934DL · Doug MD88SDR DLM90970319Relay Socket · failedAIR TURNBACK, RT GEN FAIL IAW POM. APU START WAS ATTEMPED APU WOULD NOT START AFTER SEVERAL TRYS. REPLACED RGR POWER RELAY SOCKET, OPS GOOD.Feb 20, 1997 · N910DN · Doug MD9030SDR CALA9700188Bus Control · malfunctionedALL ELECTRICAL POWER FELL OFF LINE AND ARTS WAS INITIATED AFTER TAKEOFF. EMERGENCY POWER WAS TURNED ON, THE APU GENERATOR WAS PUT ON LINE, PARTIAL POWER WAS RESTORED. WHEN ATTEMPTING TO TURN EMERGENCY POWER OFF A LOUD HUM WAS HEARD FROM CIRCUIT BREAKER PANELFeb 17, 1997 · N12811 · Doug DC982SDR AU970772Loom · chafed(AUS) NO1 GENERATOR PHASE `B' GENERATOR FEEDER CABLE AND NEUTRAL CURRENT TRANSFORMER SHORT CIRCUITING DUE TO CHAFING ON `P' CLIPFeb 17, 1997 · Bac 146200A
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