JASC 2421
Service difficulty reports · 4,277
Reports filed under 2421 · AC 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 = '2421' 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.
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 = '2421' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR UIEA201804250790Idg · disconnectedRIGHT GENERATOR DRIVE EICAS MESSAGE. RECONNECTED THE RT IDG, SERVICED & OPS CHECKED IAW AMM 24-11-00 & AMM 12-13-03.SDR CA180423009Gcu · failed(CAN) RT GEN FAIL CAUTION PIREP: AFTER ENGINE START WE GOT RT GEN FAIL. AFTER FULL POWER RESET RT ENGINE STARTED RT GCU FAILURE APPEARED AGAIN, BUT WITH P/B RESET DISAPPEARED. RT GCU REPLACED, REMOVED SERVICEABLE FROM YL-CSC. OPS TEST SATISFACTORY. (TC# 20SDR DALA2018041702561Generator · leakingAPU RUNNING PRIOR TO BOARDING WITH APU BLEED AND PACKS ON. A HAZE WAS IN THE CABIN WITH A MUSTY ODOR. HAZE DISSIPATED BUT ODOR REMAINED. MAINTENANCE COMPLIED WITH NO GO ODI AND AFTER TROUBLESHOOTING FOUND AN OIL LEAK AT THAT APU GENERATOR. REMOVED AND REPLSDR AALA201804199032Generator · failedENROUTE, LEFT ENGINE OUTLET AND RISE WENT TO FULL SCALE HIGH-DISCONNECTED CONSTANT SPEED DRIVE. NR 1 GENERATOR FAILURE AND APU WOULD NOT START. EMERGENCY WAS DECLARED, FLIGHT DIVERTED AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED CENTRIFUGAL SWITCH ON APUSDR AALA201804199031Oil Cooler · faultedENROUTE, LEFT ENGINE OUTLET AND RISE WENT TO FULL SCALE HIGH. DISCONNECTED CONSTANT SPEED DRIVE. NR 1 GENERATOR FAILURE AND APU WOULD NOT START. EMERGENCY WAS DECLARED, FLIGHT DIVERTED AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE CENTRIFUGAL SWITCHSDR Y2PA201804170013Control Panel · inoperativeENCOUNTERED AN ELECTRICAL PROBLEM DURING CLIMB. RETURNED TO DEPARTURE. NO FURTHER ISSUES OCCURRED AND LANDED SAFELY. EMERGENCY DECLARED WITH ATC. LEFT GENERATOR OFF LIGHT ILLUMINATED DURING CLIMB. RAN COM PROCEDURE, NO HELP. APU DID NOT COME ONLINE. MAINSDR DALA2018041502576Generator · failedLEFT GENERATOR FAILURE WITH ASSOCIATED EICAS AMBER MESSAGE. FOLLOWED QRH PROCEDURES. RESET ONCE, NO LUCK, STARTED APU & CONTINUED ON TO DESTINATION. R & R THE C901 LEFT GEN CIRCUIT BREAKER IAW AMM 24-22. 927856. PERFORMED IDG ADJUSTMENT TEST IAW AMM 24-11-0SDR HALA2018041600172Idg · low pressureAIR TURNBACK DUE TO AN ELECTRIAL NR 1 IDG OIL LOW PRESSURE. REMOVED AND REPLACED THE NR 1 IDG IAW AMM 24-24-51, OPS AND LEAK CHECKED GOOD. BITE TESTED GOOD.SDR UIEA2018041600711Gcu · failedRIGHT AC BUSS FAILED DURING DESCENT, QRH PROCEDURE RESTORED POWER WITH RT ISL ILLUMINATED. PERFORMED BITE CHECK ON THE BPCU, FOUND DP TRIPPED, MAIN BUSS, OVERLAP ZONE MESSAGE , REMOVED AND REPLACED THE RIGHT GCU, OPS CHECKED GOOD IAW AMM 24-22-02.SDR UIEA2018041200694Gcu · malfunctionedAPU GEN LIGHT ILLUMINATED. REMOVED AND REPLACED THE APU GENERATOR CONTROL UNIT IAW AMM 24-22-02, OPS CHECKED GOOD.SDR DALA2018041102422Idg · malfunctionedATB DUE TO LOSS OF RT GENERATOR. APU WAS ON MEL. CREW FOLLOWED QRH PROCEDURES, NO EMERGENCY WAS NOT DECLARED. CONTACTED DISPATCH AND MC AND INITIATED ATB. BPCU FAULT IDG LOW OIL PRES/IDG HIGH RISE TEMP. REPLACED RIGHT IDG PER AMM. OPS CHECKS NORMAL. AIRCRASDR AALA20180411001Generator · leakingDURING CLIMB, ELECTRIC GENERATOR DRIVE, RIGHT DRIVE LIGHT ILLUMINATED, AMBER DRIVE INDICATION. RETURNED TO DEPARTURE. EMERGENCY DECLARED, FLIGHT LANDED BUT WITHOUT INCIDENT. REPLACED THE RIGHT ELECTRICAL GENERATOR IAW AMM 24-11-01. AIRCRAFT WAS GROUNDEDSDR DALA2018041102339Generator · failedRIGHT GENERATOR FAILED. WOULD NOT RESET IN FLIGHT AND A CROSSTIE LOCK-OUT THAT WOULD NOT RESET. AN EMERGENCY WAS DECLARED.SDR UIEA2018040900643Buss · malfunctionedRIGHT AC BUSS OFF EICAS MESSAGE DURING DECENT, QRH COMPLIED WITH. FIM 24-20 F/T 801. OBSERVED FAULT, IDG HIGH RISE TEMP COMPLETED, IDG SERVICING ON RT IAW MCC REQUEST IAW AMM 12-13-03. NO CURRENT BUSS ISSUES NOTED.SDR UIEA2018040900642Gcu · malfunctionedDURING DESCENT, WHEN TURNING LANDING LIGHTS ON, THE RT AC BUSS OFF EICAS ILLUMINATED. RT GENERATOR CONTROL, RT BUSS TIE, QRH COMLETED. RESET THE RT GENERATOR CONTROL AND RT BUSS TIE PREVIOUS FLT HAD SAME RESULT. ISOLATION AND BOTH UTILITY BUSS SHED. REMOVESDR AALA20180406008Csd · inoperativeFLIGHT RETURNED TO DEPARTURE, DUE TO A GENERATOR FAIL INDICATION. EMERGENCY DECLARED AND AIRCRAFT LANDED WITHOUT INCIDENT. AIRCRAFT WAS GROUNDED. REPLACED THE LEFT ENGINE CONSTANT SPEED DRIVE, LEAK AND OPS CHECKED GOOD IAW AMM 24-10-01.SDR 2018FA0000133Generator · power lossPILOT DIVERTED TO PMP DUE TO LOST POWER FROM MAIN GENERATOR.SDR DALA2018040202049Csd · failedRIGHT CSD OIL PRESSURE LOW MESSAGE ILLUMINATED DURING FLIGHT & APU WOULD NOT START. DIVERTED. MAINTENANCE FOUND NO OIL IN RIGHT CSD WITH FLUID AROUND FILTER AND SERVICE PORT. REPLACED THE CSD, GENERATOR, AND COOLER IAW AMM. BLED FUEL LINE TO APU AND STARTED SDR HALA2018032900130Oil System · lowDURING CLIMB, LEFT GENERATOR DRIVE EICAS MESSAGE, COMPLETED QRH AND GOING TO DISCONNECT DRIVE, THE MESSAGE AND LIGHT EXTINGUISHED. GENERATOR VOLTS AND FREQUENCIES NORMAL. DURING CLIMB IDG TEMP OUT 80/80, RISE 20/10, DURING CRUISE, IDG TEMP OUT 83/90, RISE SDR FDEA201803270796Gcu · malfunctionedSHORTLY BEFORE ROTATION, THE NR 2 GENERATOR FAULTED. DURING CLIMBOUT THE FIRST OFFICER'S ND & PFD WENT BLANK. SGU NR 2 FAULT DISPLAYED ON ECAM. AFTER STARTING THE APU, ALL INSTRUMENTS SEEMED TO COME BACK ON NORMALLY. THE CAPTAIN`S INSTRUMENTS WORKED NORSDR QXEA2018032700122Generator · malfunctionedNR 1 AC GENERATOR CAUTION LIGHT ILLUMINATED DURING CRUISE FLIGHT. PERFORMED E/A CHECKLIST, CYCLED THE AC GENERATOR OFF THEN ON, NO HELP. LEFT AC GENERATOR OFF FOR REMAINDER OF FLIGHT. DIVERTED AND LANDED UNEVENTFULLY. COMPLIED WITH AMM 05-53-00-210-819, ASDR UIEA2018032200451Pressure Switch · failedAPU AUTO SHUTDOWN, GENERATOR FILTER MESSAGE ON ECU. PERFORMED FIM 49-11, FT 969, NO FAULTS NOTED, IAW AMM 49-27-03 REMOVED AND REPLACED THE GENERATOR SCAVENGER FILTER. REMOVED AND REPLACED GEN PRESSURE DIFFERENTIAL SWITCH IAW AMM 49-20-07. APU OPS CHECKEDSDR ASAA2018032124011Idg · faultedON DOWNWIND FOR APPROACH, MASTER CAUTION ELEC NOTICED SOURCE OFF LIGHT ILLUMINATED. RAN SOURCE OFF LIGHT CHECKLIST. GENERATOR SHOWED NO VOLTS OR FREQUENCIES AVAILABLE ON BUSS. ACFT GROUNDED. TROUBLESHOT IAW FIM 24-21 / 801, NR 1 GCU BITE PROCEDURE. FOUNDSDR P5CA2018032100054Unknown · malfunctionedAPU GEN OFF EICAS MSG. APU GEN FIELD MAN RE-SET NO HELP TRANSFER TO MDDR 91311 IAW DDG 49-11-01A. APU HEALTH CHECK PER EO 6749A003, ALL PERFORMED SATISFACTORY. PERFORMED APU OPS CHECK PER AMM 49-21-00 NO DEFECTS NOTED.SDR ASAA2018031723933Module · failedLEFT GENERATOR SOURCE OFF LIGHT ILLUMINATED DURING CLIMBOUT, ZERO VOLTS AND FREQUENCIES, ACCOMPLISHED QRH PROCEDURES, APU POWER ON LEFT BUSS. ACFT GROUNDED. PERFORMED NR 1 ENGINE RUN. INSPECTED AND FOUND THE NR 1 GEN NOT COMING ON LINE. NO VOLTS OR FREQUSDR ASAA2018031423885Seal · leakingNR 1 IDG DRIVE PAD LEAKING IAW TSR701492. ACFT GROUNDED. LEAKAGE EXCEEDSS LIMITS. PERFORMED A NR 1 IDG OIL SYSTEM STATIC LEAK CHECK, NO LEAKS NOTED IAW AMM 24-11-00-700-801. REMOVED THE NR 1 IDG IAW AMM 24-11-11-000-801. REMOVED AND REPLACED THE SEAL IAWSDR CA180314003Frequency Gen · failed(CAN) BA SER CASE: 22768 SER-ETOPS-ELECTRICAL FAULT (INFO GEN INOP) ELEC FAULT GEN INOP/00:30 (REF EVENT 48957). CHECKED OMS, FOUND SEVERAL TIMES FAULTCODE: 2421F0085 AND 2421F0006. VFG ON ENGINE NR 2 REPLACED AND TESTED GOOD, IAW AMP BD500-A-J24-21-01-00AAASDR ASAA2018031023807Idg · leakingNR 2 IDG FREQUENT SERVICING. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE IDG IAW AMM 24-11-11-000-801, AND AMM 24-11-11-400-801. ACCOMPLISHED TESTS FROM POWERPLANT TEST TABLE. TEST 3A. LEAK CHECKED GOOD. INSTALLATION TEST OPS CHECKED GOOD.SDR ASAA2018030923790Oil Cooler · leakingNR 1 IDG REQUIRES FREQUENT SERVICING. ACFT GROUNDED. ACCOMPLISHED A NR 1 IDG STATIC LEAK CHECK IAW AMM 24-11-00. FOUND EVIDENCE OF A LEAK AT THE IDG AIR/OIL COOLER. REPLACED THE IDG AIR/OIL COOLER IAW AMM 24-11-21. LEAK CHECKED GOOD.SDR FDEA201803060612Gcu · inoperativeABOUT 30 MIN INTO FLIGHT, GEN 1 OFF FLASHED ON MOMENTARTLY. ABOUT 20 MIN LATER THE GEN 1 OFF & GEN 2 OFF & GEN 3 OFF FLASHED ON AND OFF CONTINUOUSLY FOR REMAINDER OF FLIGHT. ALL TIE BUSSES OPENED WHEN THE GEN OFF LIGHTS CAME ON. ACCESSED EPCU THRU CFSDR UIEA2018030700347Idg · failedRIGHT GENERATOR FAILED ON ARRIVAL WITH RIGHT AC BUSS FAILURE WHEN LOGO LIGHTS SELECTED ON. REPLACED THE RIGHT IDG IAW AMM 24-11-01, NO FAILURES NOTED. FUNCTIONAL CHECKED IAW AMM 74-11-00-75. FUNCTIONAL CHECKED GOOD IAW AMM 24-11-00-75.SDR UIEA2018030400320Control Unit · failedRIGHT GENERATOR TRIPPED IN FLIGHT, RESET THE GEN CIRCUIT BRAKER & RT BUS TIE CIRCUIT BREAKER. REMOVED AND REPLACED THE RT GENERATOR CONTROL UNIT IAW AMM 24-22-02. OPS CHECKED GOOD. NO DEFECTS NOTED.SDR AALA201803069026Generator · low pressureDURING CRUISE, RIGHT CONSTANT SPEED DRIVE OIL PRESSURE LOW LIGHT AND RIGHT GENERATOR OFF LIGHT CAME ON. DISCONNECTED CONSTANT SPEED DRIVE IAW QUICK REFERENCE HANDBOOK AND DIVERTED. MAINTENANCE REPLACED THE RIGHT ENGINE CONSTANT SPEED DRIVE AND GENERATOR IAW ASDR AALA20180303002Csd · low pressureDURING CRUISE, RIGHT CONSTANT SPEED DRIVE OIL PRESSURE LOW LIGHT AND RIGHT GENERATOR OFF LIGHT CAME ON. DISCONNECTED CONSTANT SPEED DRIVE IAW QUICK REFERENCE HANDBOOK AND DIVERTED. MAINTENANCE REPLACED THE RIGHT ENGINE CONSTANT SPEED DRIVE AND GENERATOR IAW SDR ASAA2018022823738Idg · failedTHE NR 2 GENERATOR OFF BUSS AND SOURCE OFF LIGHT ILLUMINATED, AFTER START, FLOW THE GEN LIGHTS CAME ON ABOUT 30 SECONDS AFTER THE GENERATOR WAS SELECTED. THE GENERATOR WOULD NOT COME BACK ON LINE THE APU GENERATOR POWERED THE BUSS NORMAL. ACFT GROUNDED. SDR ASAA2018022523679Generator · malfunctionedFOLLOWING BOTH ENGINES START, NR 2 GENERATOR WOULD NOT COME ON LINE. ACFT GROUNDED. PERFORMED FIM 24-21, TASK 816, DIST/BUS FAULT FOR GCU 2, FAULT ISOLATION AND NR 2 GENERATOR CAME ON LINE, NO MAINTENANCE FAULTS NOTED AND HAS NO HISTORY LAST 90 DAYS GROUNDSDR ASAA2018022023654Gcu · failedAT ABOUT 13000 FT, ON DESCENT, THE NR 2 TRANSFER BUSS ILLUMINATED, RAN CHECKLIST AND STAYED ILLUMINATED. ACFT GROUNDED. ACFT HAS HISTORY IAW LP 11863942, & 11863925 IAW FIM 24-21, 822 & AMM 24-21-00-700-803. OPS TEST FOR AC GENERATION & CONT SYS, TRANSFSDR ASAA2018021223508Idg · failedDURING APPROACH, THE NR 1 SOURCE OFF & GEN OFF BUSS LIGHTS ILLUMINATED. COMPLIED WITH QRH, LIGHTS REMAINED ILLUMINATED. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 IDG IAW AMM 24-11-11, AND 24-11-11-080-801. FILTERS WERE CLEAN FROM CONTAMINATION. OPS CHECSDR AALA20180211001Idg · failedDURING CLIMB, THE LEFT ENGINE ELECTRIC GENERATOR OFF LIGHT ILLUMINATED. FOLLOWED QRH PROCEDURES AND TRIED TO TURN ON THE APU, BUT APU DID NOT TURN ON. EMERGENCY DECLARED, RETURNED BACK TO DEPARTURE, UNEVENTFUL LANDING. AIRCRAFT WAS GROUNDED. MAINTENANCE RSDR HALA2018021200039Generator · failedELECTRICAL APU GENERATOR FAULT. RECEIVED FAULT 244134. TROUBLSHOT IAW TSM 24-20-81-810-914-A. REMOVED AND REPLACED THE APU GENERATOR IAW AMM 24-23. OPS AND LEAK CHECKED GOOD. OK FOR SERVICE.SDR 6CBA2018020618173Generator · failedDURING CRUISE FLIGHT, THE FLIGHT CREW REPORTED THE LEFT GENERATOR VOLTS WENT TO ZERO, RIGHT GENERATOR OFF, CAWS ILLUMINATED. BOTH GENERATOR VOLTS ZERO, AMPS ZERO. THE AIRCRAFT DIVERTED, AND LANDED SAFELY. DETERMINED THE GENERATORS WERE AT FAULT. BOTH LT ASDR AALA201802079004Oil Cooler · odorDURING DECENT BELOW 10,000 FEET, A STRONG ODOR OF POSSIBLE UNBURNED OIL, LIKE A SWEAT SOCK. AIRCRAFT WAS GROUNDED. TROUBLESHOT CABIN AIR QUALITY, CABIN ODOR TROUBLESHOT AND DECONTAMINATED. REPLACED THE NR 1 ENGINE INTEGRATED DRIVE GENERATOR OIL COOLESDR FQAR20180205007Alternator · failedDURING FLIGHT THE ALTERNATOR LOADMETER WENT TO ZERO AND PILOTS WERE UNABLE TO RESTORE POWER. INSPECTION OF THE ALTERNATOR REVEALED THE SLIP RINGS INSIDE THE ALTERNATORS WERE SO WORN THAT IT BROKE THE BRUSHES; THE BRUSHES THEN FELL INTO THE ALTERNATOR, CAUSING SDR ASAA2018020423438Alternator · faultedNR 1 ENGINE FAULT FOUND AT FMC CDU, RECENT SHORT TIME MESSAGE CODE 73-11271. THE ALTERNATOR VOLTAGE INPUT TO THE EEC IS OUT OF RANGE. ACFT GROUNDED. REMOVED & REPLACED THE NR 1 ENGINE EEC, ALTERNATOR, & ROTOR IAW AMM 73-21-08. OPS & LEAK CHECKED GOOD.SDR DALA2018012900468Generator · failedDECLARED EMERGENCY DUE TO REPORTED TOTAL LOSS OF ELECTRICAL POWER. UPON ARRIVAL IT WAS DETERMINED THAT THE RT GEN HAD FAILED ALONG WITH THE A/C CROSS TIE LOCK OUT MESSAGE. T/S THE RT GENERATOR SYSTEM AND THE A/C CROSS TIE SYSTEM. R&R R2-216 AND R2-45 AMM 24-2SDR P5CA2018012300011Idg · leakingRIGHT GENERATOR DRIVE LIGHT. REMOVED AND REPLACED THE IDG, IDG OIL LEVEL CHECK AND SERVICE CONDITION NORMAL. OIL SYSTEM CHECK, NO LEAKS FOUND. PERFORMED RT ENGINE POWER PLANT TEST, FOUND NORMAL IAW AMM 24-11-01, AMM 71-00-00, 71-71-00, 12-13-03, AND AMM SDR AALA201801309019Generator · defectiveTHE FLIGHT REJECTED TAKE-OFF DUE TO A COMPRESSOR STALL ON NR 1 ENGINE. WITNESSES SAW FLAMES COMING OUT AND A BANGING NOISE ALERTED THE CREW. REJECTED TAKE-OFF INITIATED AT 40KTS. THE AIRCRAFT WAS GROUNDED. ACCOMPLISHED MCM CARD 72-92-12 FOR COMPRESSOR SURGSDR ASAA2018012223264Idg · failedON DEPARTURE PASSING 24K FEET NR 1 DRIVE ILLUMINATED, FOLLOWED QRH NR 1 DRIVE DISCONNECT ACTIVATED. ACFT GROUNDED. PERFORMED FIM 24-11 TASK 801, GCU BITE INDICATES NR 1 IDG FAILURE, DRAINED OIL AND INSPECTED FILTERS, NO CONTAMINATION NOTED. REMOVED IDG IAW SDR CALA2018012100263Control Unit · faultyFIVE SECONDS INTO TAKE OFF POWER, RT GENERATOR OFF AND BUSSES OFF. REMOVED AND REPLACED THE NR 2 GENERATOR CONTROL UNIT IAW AMM 24-22-02. PERFORMED AN OPS CHECK IAW AMM 24-22-00-715-001.OPS CHECKED GOOD.SDR ASAA2018012023265Circuit Breaker · failedAPU POWERING ACFT. GROUND POWER CONNECTED AND SELECTED. ALL POWER DISCONNECTS FROM BUSSES. APU WILL STILL CONNECT BUT GROUND POWER DESELECTS APU AND DOES NOT CONNECT POWER TO THE ACFT. ACFT GROUNDED. AMM 24-21-41, REMOVED/REPLACED C803 AUX PWR BREAKER, OPS
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