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.
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
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 2008UALA01565Generator · faultyWITH APU RUNNING, GEN OFF LIGHT ILLUM AFT NR 1 ENG START WITH PWR TRANSFER. CYCLED APU GEN GCU, NO HELP. BOTH ENG GENS ON LINE AND RESET. NO HELP.SDR AMTA200800237Converter · unserviceableDURING ETOPS PREDEPARTURE CHECK, FOUND MSG NR 49-41-244 FOR APU BITE TEST. START CONVERTER SHOWS FAILED GENERATOR DIODE. T/S IAW FIM 49-40-00-810-806. FOUND START CONVERTER UNIT FAILED. REMOVED AND REPLACED START CONVERTER UIT IAW MM 49-41-61. OPS CHECK GSDR DL76G080323Idg · inoperative90 MIN OUT OF MAN, THE CREW GOT A LT ENG IDG DRIVE LIGHT. AFTER FOLLOWING QRH 50 MIN LATER, THE APU FAILED AND WOULD NOT RESTART. LGCU SWAPPED WITH APU GCU. LEFT S/N 1195 AND APU NOW S/N 6111. IDG REPLACED. ENGINE RUN CARRIED OUT. IDG OPS NML. LEAK OK. SDR UPS08151752Generator · failedATB - NR 1 GENERATOR FAILED ON CLIMB-OUT/APU GEN FAILED. REMOVED AND REPLACED NR 1 GENERATOR CONTROL UNIT IAW 24-22-12-04. RAN ENGINES AND APU. PERFORMED A/C MONITORING OPERATIONAL AND FUNCTIONAL TESTS PER MM 24-27-00-05. PERFORMED GPCU BITE PER 24-41-00-0SDR UPS08151744Gcu · failedATB - PRIMARY FLT AND NAV DISPLAYS BLANKING. C/W TSM 24-00-00 FAULT ISOLATION CH GPCU BITE. GCU FAILED. REMOVED AND REPLACED NR 2 ENGINE GCU REF A300 MM 24-22-12-00. PERFORMED OPERATIONAL TEST REF AMM 24-41-00-05. TESTS OK, OK TO CONTINUE SERVICE.SDR CA080229004Pulley · separated(CAN) WHILE IN FLIGHT, NR1 ALTERNATOR FAILED, NR1 ALT AMBER LIGHT CAME ON, ON THE GROUND, INSP REVEALED THAT THE DRIVE PULLEY HAD SEPARATED FROM ALTERNATOR, PULLEY FOUND DAMAGED WITH OTHER BROKEN PULLEY PIECES ON THE BUTTOM OF COWLING. RETAINING NUT HAD GONESDR CA080226004Alternator · unserviceable(CAN) ALTERNATOR FAILED, CAUSING MAIN BATTERY TO DRAIN RESULTING IN COMMUNICATION DIFFICULTIES WHICH CAUSED PILOT TO CONTACT TOWER BY CELL PHONE FOR CLEARANCE TO LAND. NEW UPGRADED ALTERNATOR INSTALLED PN ALX8521R (TC NR 20080226004)SDR COMA0860139Heat Exchanger · faultyFLIGHT 5279 - RECEIVED IDG NR 2 CAUTION MESSAGE. ABORTED APPROACH, PERFORMED QRH, LANDED WITHOUT INCIDENT. REPLACED NR 2 IDG HEAT EXCHANGER. NO FURTHER DEFECTS.SDR 14779Gcu · malfunctionedWHILE ON MAINTENANCE, THE APU AGCU FAILED P/N 1701321D S/N 1324 INSPECTED MAU3 AND SPDA 2 NO DAMAGE, NOTED REPLACING AGCU.SDR CA080118003Adg · unwanted deploy(CAN) WHILE AC WAS IN CRUISE AT 30000 FT, ADG DEPLOYED UN-COMMANDED. ALL ELECTRICAL SYSTEMS WERE POWERED. TRIED SWITCHING BACK TO IDG POWER. ADG WOULD NOT SWITCH OVER. MAINTENANCE REPLACED ADG AUTO DEPLOYMENT CONTROLLER AND ADG RESTORE PUMP. (TC NR 2008011800SDR 2008UALA00219Gear · failedFOUND NR 1 ENG IDG DELTA P SWITCH POPPED WITH METAL IN FILTER. SUSPECT BEARING OR GEAR FAILURE DUE TO METAL FOUND IN FILTER. REPLACED NR 1 ENG IDG PER MM 24-11-01, LEAK AND OPS CHECK OK. AC OK FOR SERVICESDR DLM90080045Converter · faultedLT AC PWR FAULT. REMOVED AND REPLACED VSC CONVERTER PER AMM. OPS GOOD PART NO 1B189-5.SDR CA080112001Adg · unwanted deploy(CAN) A/C RETURNED DUE TO ADG UNCOMMANDED DEPLOYMENT ON T/O. PRESENTLY THE AUTO DEPLOYMENT SYS IS UNDER MEL UNTIL MAINT PERMITS. UPDATE FURTHER WHEN T/S HAS BEEN C/O. (TC NR 20080112001)SDR COEA0701960Control Unit · inoperativeRETURNED TO BLOCKS: FLIGHT NR 8800, ON TAXI TO RUNWAY IN GEG STANDBY ELECTRIC GENERATOR FAULT LIGHT ILLUMINATED. ATTEMPTED RESET WAS UNABLE TO CLEAR THE FAULT, PILOT ELECTED TO RETURN TO RAMP. MAINTENANCE REMOVED AND REPLACED THE ALTERNATOR CONTROL UNIT. (KSDR QXEA200701774Inverter · failedPDX - FLIGHT 2050, ON TAXI RECEIVED A SECONDARY INVENTER CAUTION MESSAGE. RETURNED TO THE GATE. MAINTENANCE PLACED THE SYSTEM ON MEL 24-8. AIRCRAFT RETURNED TO SERVICE. REPLACED THE SECONDARY INVERTER. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.SDR 2007FA0001070Control Unit · failedTHE AIRCRAFT FACTORY INSTALLED ACU BEGAN FAILING AT 200 HOURS (INTERMITTENT ALTERNATOR DROPPING (OFF LINE) FOR A FEW SECONDS) (ON ONE OCCASION, THE FIELD CB DISENGAGED) A NEW ACU WAS INSTALLED AT 215.9. AT 246.1 THE SAME PROBLEM SURFACED, AND THE THIRD ACU WSDR QXEA200701769Generator · malfunctionedSEA/EUG FLIGHT NR 2333: NR 1 AC GEN CAUTION LIGHT CAME ON IN FLIGHT. COMPLIED WITH CHECKLIST, DID NOT RESET. FLIGHT DIVERTED TO PDX. MAINTENANCE REMOVED AND REPLACED NR 1 AC GEN IAW Q400 TASK CARD NR 6242101. PERFORMED LEAK CHECK. NO LEAKS NOTED. OPS CHESDR DLM90071559Transformer · inoperativeINFLIGHT RT ENG GEN OFF AND RT AC PWR FAULT. RT ENG GEN TRANSFORMER UNIT INOP. REPLACED TRANSFORMER UNIT.SDR QXEA200701763Generator · inoperativePDX FLIGHT NR 2354: APU GEN DROPPED OFF LINE DURING ENGINE START. APU FAILED TO START. AIRCRAFT RETURNED TO BLOCK. PLACED ON MEL IAW MEL REF 49-00-1, RSI NR 358894.SDR CA071126008Gcu · failed(CAN) ACCORDING TO THE CREW WRITE UP: NR1- HYD 3A FAILED ( HYP PUMP 3A CAUTION MSG POSTED) ELECTRICALLY POWERED BY AC BUS NR2 - (GEN2 FAILED) WE DID NOT GET A AMBER GEN FAIL INDICATION OR WARNING. AC BUS 2 FAILED AGAIN, NO WARNING. TRU 2 AND ESS TRU FAILED, NOSDR 07FDEA04794Generator · inoperativeREJECTED T/O ON 18L KMEM DUE TO F/O'S PFD AND NAV DISPLAY SHOWING DIAGONAL LINES. ABORTED AT 60 KTS. ALL CHECKLISTS COMPLETED AND PERFORMED SECOND UNEVENTFUL TAKEOFF. PERFORMED EFIS BITE AND DISPLAYS TEST ON SYSTEM, ALL CHECKS NORMAL. SWAPPED NR 3 SGU ASDR 2007FA0001045Alternator · failedDURING NIGHT IMC APPROACH, LOW VOLTAGE LIGHT ILLUMINATED AND BUS VOLTAGE DROPPED BELOW 24 VOLTS. PILOT RECYCLED ALTERNATOR SWITCH BUT WAS UNABLE TO KEEP ALTERNATOR ON LINE. PILOT REDUCED LOADS AND SUCCESSFULLY EXECUTED APPROACH AND LANDED WITHOUT INCIDENT. SDR 2007FA0001046Alternator · failedDURING DAY VMC FLIGHT, LOW VOLTAGE LIGHT ILLUMINATED AND BUS VOLTAGE DROPPED BELOW 24 VOLTS. PILOT MINIMIZED LOADS, DID A MANUAL GEAR EXTENSION, AND LANDED WITHOUT INCIDENT. CHARGING SYSTEM TROUBLESHOOT BY MECHANIC. FOUND ALTERNATOR OUTPUT TO BE 26 VOLTS UNSDR 2007FA0000995Relay · meltedRT STARTER GENERATOR RELAY P/N: 6041H190 MELTED AT BUSS BAR CONNECTION.SDR COEA0710911Control Unit · shortedWHILE ENROUTE, NR 1 ACW GENERATOR FAULT WOULD NOT RESET. SMELLED ELECTRICAL SMOKE FOR 30 SECONDS THEN WENT AWAY. REMOVED AND REPLACED NR 1 ACW GENERATOR AND ACW GENERATOR CONTROL UNIT. (M)SDR ASMF200710008Generator · damagedCAPTAIN REPORTED THAT DURING TAXING, LT GENERATOR WAS OUT OF SERVICE. MAINTENANCE PERSONNEL DEFERRED REPORT IAW MEL 24-1 CAT B. LATER DURING NEXT TRANSIT CHECK, LT GENERATOR WAS REPLACED IAW MM 24-20-01, TESTED CORRECT.SDR 2007UALA04312Circuit Breaker · burnedAPU GEN IS INOPERATIVE. REPLACED APB CONTACTOR . APU OPS CHECKED GOOD. SUSPECT AUX POWER BREAKER BURNED AND UNABLE TO HOLD SET POSITION. AC OK FOR SERVICE.SDR ZZDA2007283Pcdu · unserviceableON TAKEOFF, RECEIVED LT GEN OFF, LOST LT SIDE OF AIRCRAFT NR 3 DU, RESET GEN, WILL NOT RESET. LOST LT DC BUSS. WENT TO EMERGENCY PWR. REMOVED AND REPLACED LEFT PCDU.SDR 2007UALA04095Warning Light · illuminatedAPU GENERATOR "OFF" LIGHT ILLUMINATES AFTER RIGHT ENGINE STARTS.SDR 2007FA0000921Alternator · inoperativeALTERNATOR, DEFECT UNKNOWN, FAILED INTERNALLY. RETURNED FOR WARRANTY. (K)SDR 2007FA0000920Alternator · inoperativeALTERNATOR, DEFECT UNKNOWN, FAILED INTERNALLY, GROUND POST LOOSE INTERNALY EXCESSIVE ARMATURE END PLAY. RETURNED FOR WARRANTY. (K)SDR DL757071281Idg · malfunctionedFLIGHT 418 DIVERTED TO LGA, APU ALREADY ON MEL PER 49-11-01, LOST LEFT GENERATOR. A/C LANDED AT LGA. MAINTENANCE IN PROGRESS. REPLACED LEFT ENG IDG PER M/M. RAN ENG PER M/M. NO LEAKS NOTED. OPS NML.SDR QXEA200701495Generator · malfunctionedSEA FLIGHT NR 2194 - WHILE CLIMBING THROUGH 16000 FEET, NR 2 AC GENERATOR CAUTION LIGHT ILLUMINATED. AFTER RESETTING AC GENERATOR 2 LIGHT ILLUMINATED AGAIN NOTICED A BRIEF SOUND LIKE A SLIGHT ENGINE SURGE A FEW MINUTES PRIOR. HOWEVER, ALL ENGINE INDICATIONS SDR QXEA200701504Generator · malfunctionedYVR FLIGHT NR 2450, NR 1 AC GENERATOR CAUTION LIGHT WOULD NOT RESET PER CHECKLIST. FERRIED TO PDX. REPLACED NR 1 AC GENERATOR IAW 24-21-00-400-801. ALSO, REPLACED TRANSFORMERS, BOTH GCU'S AND RELAYS 2421-K1 AND K2. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNESDR 2007FA0000880Alternator · inoperativeTHIS ALTERNATOR WAS OVERHAULED, OPERATED LESS THAN 50 HOURS, FAILED. THE STUD THAT HOLDS THE DIODE PLATE IN THE ALTERNATOR WAS BROKEN, AND THE SECOND STUD WAS LOOSE. THIS HAS BEEN AN ONGOING PROBLEM WITH OVERHAULS. WE ARE A SMALL SHOP, YET WE HAVE HAD MANY SDR SIAM200726003Inverter · malfunctionedAS CREW SET THRUST 115V BUSS OFF LINE WITH ASSOCIATED MESSAGES. DID LOW SPEED ABORT AND RETURNED TO GATE. REMOVED AND REPLACED STATIC INVERTER IAW EMB135 AMM 24-20-01. OPS CHECK GOOD, AIRCRAFT RETURNED TO SERVICE.SDR 2007UALA03654Idg · lowEICAS "R GEN DRIVE" & OVHD "DRIVE" LIGHT CAME ON DURING MOD TURBULENCE. LIGHT WENT OUT AFTER A FEW SEC'S. 10-11-07 SERVICED IDG APPROX 50 PUMPS OF OIL PER UA MANUAL. THIS ACFT IS TO FLY NON ETOPS DUE TO REPEAT ELECTRICAL IDG TRIPPING PROBLEMS ON THE RT SDR QXEA200701384Gcu · malfunctionedORH FLIGHT NR 2078, NR 2 AC CAUTION LIGHT WOULD NOT RESET VIA CHECKLIST. REPLACED NR 2 AC GCU, IAW Q200 AMM TASK 24-21-00-720-801. OPERATIONAL CHECK GOOD, AIRCRAFT RETURNED TO SERVICE.SDR QXEA200701389Unknown · unknownSEA FLIGHT 2312: AFTER PUSHBACK, RT AC BUSS CAUTION LIGHT REMAINED ON. AIRCRAFT RETURNED TO BLOCK. MAINTENANCE TROUBLE SHOT PER FIM 24-20-00-810-806. PERFORMED OPS TEST OF AC VARIABLE FREQUENCY GENERATOR SYSTEM IAW AMM 24-21-00-710-801. OPS TEST GOOD, NO DSDR DL777071162Gcu · malfunctionedRTB DUE TO LT ENG GEN CONTROL OFF LIGHT ON GROUND. REPLACED LT GCU.SDR 2007UALA03401Generator · faultedAPU GENERATOR FAULTY & RT BUSS DROPPING OFF.SDR 2007UALA03229Unknown · unknownRTFL DUE TO A GENERATOR PROBLEM. EICAS MESSAGE FOR RIGHT GENERATOR DRIVE DISPLAYED WHILE CLIMB OUT AT 10000 FT. THE ROOT CAUSE OF THIS ACTION BY THE PILOT WAS DUE TO ILLUMINATION OF GENERATOR DRIVE LIGHT AS A RESULT OF A DISCONNECTED GENERATOR DRIVE.SDR J4PA2663Alternator · openWHILE AT CRUISE, ALT 1 LIGHT ILLUMINATED. PILOT DIVERTED TO PDK. ONE PASSENGER WAS ONBOARD. LAND WITH INCIDENT. MAINTENANCE REPLACED THE NR 1 ALTERNATOR AND FIELD CONTROL MODULE.SDR 2007FA0000877Alternator · failedA FLIGHT TEST WAS BEING CONDUCTED ON 07/30/07 ON A REWORKED THERMAL SYSTEMS (KATS) EVADE SYSTEM, WHEN THE SYSTEM WENT UNSTABLE CAUSING THE ALTERNATOR TO GO OFF LINE. THE TECHNICIAN MONITORING THE SYSTEM ON A DIAGNOSTIC LAPTOP COMPUTER ANNOUNCED TO THE PILOT TSDR 2007FA0000728Alternator · shortedALTERNATOR SHORTED, THIS UNIT IS (1) OF (3) REPLACED IN THE LAST MONTHS. (K)SDR AWXA200700950Sensor · failedSEA - LAS - EL - LOG 7757269 - AT CRUISE, THE CREW REPORTED THE RT ENGINE GENERATOR HAD DROPPED OFF LINE. THE APU WAS ON MEL. THE CREW DECLARED AN EMERGENCY. THE LANDING WAS UNEVENTFUL. MX REPLACED SENSOR 50XU2 PER MM 24-22-18. OPERATIONAL CHECK WAS GOOD SDR FX7A200700005Csd · overheatedLEFT CSD TEMP INCREASED TOWARDS RED MARK. LEFT CSD PRESS LOW LIGHT AND MASTER CAUTION LIGHT ILLUMINATED. APU FAILED TO START CAUSING AIR TURN-BACK.SDR J4PA200702558Alternator · openAIRCRAFT DEPARTED KCAE TO KHXD WITH 1 PASSENGER. DURING CRUISE NR 1 ALT FAIL LIGHT ILLUMINATED. PILOT RETURNED TO KCAE WITHOUT INCIDENT. MAINTENANCE DROVE TO KCAE, REMOVED AND REPLACED THE NR 1 ALTERNATOR AND NR 1 FIELD CONTROL MODULE.SDR DL76L070960Idg · failedJFK-NCE - ON WAY TO NCE RT IDG FAILED. STARTED APU AND CONTINUED. ON FILAL APPROACH APU GEN FAILED AND THEN APU AUTO SHUT DOWN. REMOVE/INSTALL RIGHT IDG PER AMM 24-11-01. REMOVE AND INSTALLED RIGHT GCU PER AMM 24-11-01. OPERTIONAL TEST PERFORM OK FOR RIGSDR DL757070955Idg · inoperativeON TAKEOFF, AROUND 60 KTS RT ENG GEN DRIVE LIGHT ON WITH EICAS MSG. ABORTED T/O. REPLACED RT ENG IDG AND GCU. NO FAULTS ON BPCU.
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