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 97ZZZX1035Converter · failedIN-FLIGHT EXPERIENCED LT AC/DC POWER FAILURE AND RETURNED TO KEWR. REMOVED AND REPLACED DEFECTIVE LT CONVERTER.SDR VTZA97119Pdu · failedFLT 6594 - IAD-CLE - DURING TAXI, AIRCRAFT RETURNED TO GATE DUE TO LEFT AMP FLUX. MAINTENANCE INSPECT REMOVED AND REPLACED PDU, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)SDR 9700429941Gen Contl Panel · malfunctionedRIGHT GENERATOR DROPPED OFF LINE ACCOMPANIED BY AC CROSSTIE LOCKOUT LIGHT ILLUMINATED. FLIGHT RETURNED TO LIT AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED RIGHT GENERATOR CONTROL PANEL, OPERATIONAL CHECK NORMAL.SDR 97ZZZM165Ac Cross Tie · locked outDTW - FLT 1130 - APU GENERATOR FEEDER FAULT IN AIR WHICH CAUSED AC CROSS-TIE LOCK-OUT. NO INSTRUMENTS ON RIGHT SIDE. NO POWER TO RIGHT SIDE ELECTRICAL SYSTEM. RE-SET CROSS-TIE LOCK-OUT AND PERFORMED ELECTRICAL CHECK IAW DC-9 MM 24-20-0 PAGE 501. OP CHECKEDSDR DL73K962792P6 Panel · trippedBOTH GENRATORS WERE LOST AT FL310. ACCOMPLISHED LOSS OF BOTH GENERATORS CHECKLIST PER AOM. DIVERTED TO JFK, STIMATED LANDING WT 103,500 AND LANDING NORMAL. REPLACED G7 BUS PROTECTION PANEL AND R3 RELAY. RUN UP AND FUNCTIONAL CHECK GOOD.SDR AALA961886Bus Contl Unit · failedMIA - FLT 0911 - BOTH UTILITY BUSSES CYCLE OFF THEN ON AT ABOUT 1 MINUTE INTERVALS. TURNED OFF ALL GALLEY OVENS AND BOTH RECIRC FANS AND PROBLEM CONTINUED. TRIED USING ONE UTILITY BUS. PROBLEM CONTINUED. BOTH BUSSES TURNED OFF REMAINDER OF FLIGHT. REPLACSDR 96UAL901014Connector · damagedAPU GENERATOR DROPS OFF LINE AFTER FOUR OR FIVE MINUTES OF OPERATION. FOUND OVERHEAT CONDITION FOR GENERATOR FEEDERS CABLES. *S/D* AREA OF OVERHEAT WAS AT THE CABLE APU GENERATOR POWER PHASE LEAD TERMINAL INTERFACE. SUFFICIENT RESISTANCE WAS PRESENT TO CAUSDR COEA9622202Transformer · failedWHILE EN ROUTE FROM YVR-OAK, CO-PILOT'S DME INDICATOR DISPLAY WENT BLANK. LATER THE NR 1 DE-ICING GENERATOR FAILURE LIGHT ILLUMINATED ACCOMPANIED BY A SLIGHT SMELL OF SMOKE. CREW MADE A PRECAUTIONARY LANDING IN PDX. THE AIRCRAFT LANDED WITHOUT INCIDENT. RESDR VJ6A960006Current X-Former · failedEN ROUTE FROM ATL-CMH, AIR INTERRUPTED AND RETURNED TO ATL AS A PRECAUTIONARY MEASURE BECAUSE CROSS TIE FAILED AND RIGHT GENERATOR CAME OFF LINE. RESET GENERATOR. REMOVED AND REPLACED RIGHT GENERATOR CONTROL PANEL, P/N 976J2544, S/N Y02067ABD, AND CURRENT TRSDR DLM88962652Wire · wornFIRE DAMAGE FWD CARGO BIN AT STA 225 UNDER LT SLANT PANEL, FOUND 6 HOLE BURNED IN PLASTIC DRIP SHIELD. ALSO, FIBERGLASS FLOOR PANEL SIDEWALL MOUNTED PNEUMATIC DUCT AND WIRING CHARRED. REMOVED PNEU DUCT FOR VISUAL INSP OF STRUCTURE, INSPECTED SKIN, STRC FRAMESDR 9625569307Gen Contl Panel · malfunctionedON TAKEOFF, AC LOCKOUT WARNING ILLUMINATED WITH AC BUS OFF. FOLLOWED COM PROCEDURE AND RETURNED TO MSP. FLIGHT LANDED WITHOUT INCIDENT. REPLACED LEFT GENERATOR CONTROL PANEL. RAN BOTH ENGINE, APU AND EXTERNAL POWER AND ALL BUSES OPERATE NORMAL.SDR CA961128008Sensor Wire · broken(CAN) AC GENERATOR HOT CAUTION LIGHT ILLUMINATED IN FLIGHT. AC GENERATOR CIRCUIT BREAKER PULLED. SNAG FOUND TO BE BROKEN SENSOR WIRE AT PLUG 2421J4, PIN 11.SDR PLGA9611261Wire · brokenBOS - FLT 4453 - DURING CLIMB-OUT FROM BOS, THE RIGHT AC GENERATOR FAIL LIGHT ILLUMINATED. THE AIRCRAFT RETURNED TO BOS, LANDING WITHOUT INCIDENT. MAINTENANCE WAS DISPATCHED TO THE AIRCRAFT AND REPAIRED AN OPEN WIRE BETWEEN THE AC GENERATOR CONTROL UNIT AND SDR JBXA9600030Generator · faultedLGA - FLT 4 - GEN 1 FAULTS AFTER START, LGA, ABORTED TAKEOFF. ASSIGNED TO DMI NR 02447, MEL NR 24-21-3-1. STILL T/S SYSTEM, ITEM STILL CURRENT. (M)SDR 9623369947Ac Relay · failedAC CROSSTIE LOCKOUT LIGHT ILLUMINATED EN ROUTE. FLIGHT DIVERTED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED RIGHT GENERATOR AC POWER RELAY, OPERATIONAL CHECK NORMAL.SDR RRXA96124Generation Syst · malfunctionedDURING CRUISE, NR 2 GENERATOR LOCKED OUT. BUS RESET, VOLTS AND FREQS NORMAL, GEN RELAY OPEN, LT EMERGENCY BUS POWER FAILURE LIGHT ILLUM AND LOST ASSOCIATED BUS. 996CF DIVERTED TO KORD. *S/D* MAINTENANCE TRANSFERED THE NR 2 GEN TO THE DMI LIST. NR 2 BUS OPSDR HEEA968156Shunt · defectiveCAUSING OPPOSITE GENERATOR TO DROP OFF LINE.SDR ARWA9610046Generator · miswiredON TAXI OUT NR 2 GENERATOR FIELD RELAY TRIPPED. STRONG BURNING SMELL IN COCKPIT BEHIND ELECTRICAL CONTROL PANEL BULKHEAD. DISCONNECTED NR 2 GENERATOR CSD AND RETURNED TO BLOCK. NO FIRE NOTED. TROUBLESHOOTING REVEALED A WIRING PROBLEM AT NR 2 GENERATOR, CAUSDR 9621499945Gen Contl Pnl · failedRIGHT GENERATOR DROPPED OFF LINE ACCOMPANIED BY AC CROSSTIE LOCKOUT AFTER TAKEOFF. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED RIGHT GENERATOR CONTROL PANEL. OPERATIONAL CHECK NORMAL. AIRCRAFT RETURNED TO SERVICE.SDR MWEA96525Contl Panel · inoperativePILOT REPORTS LH GENERATOR OFF LIGHT ILLUMINATED ON CLIMB. STARTED APU PER QRH PROCEDURES, AC CROSSTIE LOCKOUT & ACBUSS OFF LIGHTS ILLUMINATE. PLACED BUSS SWITCH BACK TO OFF POSITION. ALL BUSSES POWERED AGAIN. -- REPLACED AC CROSSTIE RELAY AND AC GENERATOSDR CALA9601149Gcu · inoperativeTHE LEFT BUS OFF LIGHT COME ON SHORTLY AFTER TAKEOFF. THE LIGHT WAS ACCOMPANIED BY AN ELECTRICAL ODOR OR AIR CONDITIONING PACK SMELL AND A CLICKING SOUND, LIKE THAT OF A RELAY OPENING AND CLOSING, THE SOUND WAS HEARD COMING FROM BEHIND THE SECOND OFFICER'S SESDR CALA9601139Circuit Breaker · trippedWHILE OPERATING THE APU ON TAKEOFF WITH THE LT GENERATOR PLACARDED INOPERATIVE, THE APU GENERATOR WAS LOST AND HAD NO CROSSTIE. THE APU GENERATOR COULD NOT BE RESET AND THE AIRCRAFT WAS RETURNED TO LAS. MAINTENANCE FOUND THE APU CONTROL CIRCUIT BREAKER POPPESDR CA960910013Lug · broken(CAN) PRIOR TO DEPARTURE APU (AUXILIARY POWER UNIT) GENERATOR FIELD TRIPPED AND ELECTRICAL SWEET SMELL IN CABIN. C-PHASE LUG BROKEN. LUG AND GENERATOR REPLACED.SDR 9615189150Relay · failedDURING APPROACH, ALL COCKPIT LIGHTS BEGAN FLASHING ACCOMPANIED BY LEFT GENERATOR OFF, LEFT AC BUS OFF AND CROSSTIE LOCKOUT ANNUNCIATOR LIGHTS FLASHING RAPIDLY. LEFT GENERATOR WAS TURNED OFF AND APU WAS STARTED TO POWER LEFT BUS. CREW REQUESTED EMERGENCY EQUISDR CA960711008Breaker · burnt(CAN) AIRCRAFT RETURNED AFTER ENGINE START DUE #1 GENERATOR WOULD NOT GO ON LINE. REPLACED BUS TIE BREAKER.SDR USAASB96119Harness · failedCLT - FLT 337 - WHILE PASSING 18,000 FEET, FLIGHT LOST 2 OF 3 TRANSFORMER RECTIFIERS. FLIGHT RETURNED TO FIELD IN CLT AND LOST NR 2 MAIN BUS ON 2 NAUTICAL MILE FINAL. FLIGHT LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED THE NR 2 ENGINE A/C HARNESS. SDR COMA9660110Adg · blade damageA COKE WAS SPILLED ON THE COCKPIT CENTER PEDESTAL AND THE A.D.G. AUTO-DEPLOYED. COKE SPILL WAS CLEANED UP AND THE AIR DRIVEN GENERATOR WAS REPLACED DUE TO DAMAGED BLADE.SDR CA960624002Wire · misinstalled(CAN) ON GROUND AND BOTH GENERATORS TRIPPED OFF WITH STANDBY POWER AS WELL, THEN ALL RETURNED TO NORMAL. ON TAXI SAME THING HAPPENED. ON DESCENT NEXT FLIGHT SAME, LOSS POWER BETWEEN 500' AND 200' BEFORE ALL POWER RETURNED TO NROMAL. REPLACED GENERATOR POWER CSDR AALA960828Transformer · failedJFK - DURING CRUISE, THE COCKPIT EXPERIENCED SMOKE FOR A SHORT DURATION. SMOKE APPEARED TO BE COMING FROM THE CENTER CONSOLE ON THE FIRST OFFICER SIDE. LANDED JFK WITHOUT FURTHER INCIDENT. REPLACED BLEED AIR BITE MODULE TRANSFORMER. SYSTEM GROUND CHECKED NSDR DL73E961207Test Module · inoperativeNR 2 GENERATOR WOULD NOT HOOK UP TO BUS DUE TO NO VOLTAGE. FREQUENCY WAS NORMAL. REPLACED POWER TEST MODULE, OPS CK OK FOR SERVICE.SDR 96ZZZX2896Wire · chafedON TEST FLIGHT, AC NR 2 GENERATOR LIGHT CAME ON. DURING TROUBLESHOOTING OF SYSTEM, FOUND WIRE 2420-20001E12A-1 GROUNDED OUT. CONDUIT PASSES BETWEEN REAR SPAR AND FLAP PRIMARY CONTROL TUBE. AREA WHERE WIRES PASS THROUGH IS PRESSED AND WIRE RUBS CONDUIT. SUBSDR AALA960698Wire · shortedSDO - FLT 1728 - A/C ARRIVED SDQ WITH FOLLOWING AVIONICS CIRCUIT BREAKERS TRIPPED, F-22, C-9, D-27, D-29 AND C-29. CHECK OF CIRCUIT BREAKER PANEL REVEALED WIRE BUNDLE CHAFING WITH SHARP EDGE WHICH CUT WIRE INSULATION CAUSING SHORTS. ACCOMPLISHED INTERIM WIRISDR 9608959979Generating Syst · malfunctionedLEFT GENERATOR VOLTS AND FREQUENCY WENT TO ZERO DURING CLIMB. THIS WAS ACCOMPANIED BY AC CROSSTIE LOCKOUT. FLIGHT DIVERTED TO DSM AND LANDED WITHOUT INCIDENT. MAINTENANCE DEFERRED LEFT AC GENERATOR SYSTEM PER MEL 24-1A.SDR USAASB96049Ac Generator · loose wireCMH - FL 868 - AFTER DEPARTURE FROM CMH, NR 2 AND NR 3 TRANSFORMER RECEIVER UNITS FAILED. FLIGHT RETURNED TO CMH AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE FOUND A LOOSE ENGINE GENERATOR FEED HARNESS WIRE. WIRE 'S' WAS LOOSE AT THE NR 2 GENERATOR. SESDR COMA9630080Wire · chafedLEFT AC GENERATOR FAILED IN FLIGHT. REPAIRED WIRE NR XA510, XA509, XA508 AT WING FLAP INTERCONNECT AREA. WIRING WAS CHAFED AND BURNED.SDR 96ZZZX3418Control Box · inoperativeMIA/TPA - FLT 4938 - PILOT REPORTED SECONDARY INVERTER LIGHT ILLUMINATED. AIRCRAFT WAS FERRIED TO FLL MAINTENANCE BASE. MAINTENANCE REPLACED PARALELLING CONTROL BOX. TEST FLIGHT SATISFACTORY. AIRCRAFT WAS RETURNED TO SERVICE.SDR 96ZZZM818Gen Contl Panel · looseON FLT 236, DFW-ATL, DIVERTED TO MSY WITH THE LEFT AC BUS INOP. FOUND THE LEFT GENERATOR CONTROL PANEL LOOSE IN THE RACK, SECURED PANEL, RAN ENGINES WITH AC LOAD, OPS CHECKED NORMAL.SDR 9607669610Control Panel · malfunctionLOSS OF B-PHASE ITEMS ON NR 2 GENERATOR OCCURRED EN ROUTE. FLIGHT DIVERTED TO DFW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NR 2 GENERATOR CONTROL PANEL, OPERATIONAL CHECK NORMAL.SDR CA960311016Generator · malfunctioned(CAN)ON COMPLETION OF LANDING ROLL AIRCRAFT LOST ELECTRICAL POWER FROM BOTH AC GENERATOS AND WENT TO BATTERY POWER. ONCE AIRCRAFT CLEARED RUNWAY GENERATOR SYSTEM RESTORED AUTOMATICALLY. FURTHER INVESTIGATI ON REVEALED THAT BOTH GENERATORS DROPPED OFF LINE FOR SDR DLM90960450Transformer · failedON FINAL APPROACH GEAR LOWERED, ENTIRE ELECTRICAL SYSTEM BEGAN TO CHATTER AND LIGHTS FLICKER. FLIGHT INSTRUMENT CRT'S BLANKED. SELECTED EMERGENCY POWER FLIGHT INSTRUMENTS AND OPERATION RETURNED. REMOVED LEFT CONVERTER UNIT AND LEFT TRANSFORMER. CLEANED LARSDR CAL960186Gen Contl Panel · inoperativeFLT NR 1994 - IAH - THE LEFT GENERATOR TRIPPED OFF FOLLOWED BY ILLUMINATION OF THE DC EMERGENCY BUS OFF LIGHT. THE GENERATOR BUS OFF LIGHT PROCEDURES WERE FOLLOWED AND THE DC BUS CROSSTIE SWITCH WAS CLOSED. THE DC EMERGENCY BUS LIGHT CAME ON AND THE AIRCRAFSDR 96ZZZX3036Cooler · contaminatedLAS/PHO - FLT 1787 - AIR TURNBACK. ON TAKEOFF, NR 2 GENERATOR DROPPED OFF-LINE FOLLOWED BY ECAM LOW OIL PRESSURE. REMOVED AND REPLACED NR 2 IDG. OPS GOOD ON RUN-UP. REMOVED AND REPLACED COOLER. LEAK CHECK GOOD NO GROUND RUN. REFERENCE: OPERATOR CONTROL SDR MALA964844Control Unit · failedFLT NR 3410 - AFTER DEPARTURE FROM DTW, THE NR 1 AC GENERATOR CAUTION LIGHT ILLUMINATED. THE AIRCRAFT RETURED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE PERSONNEL REPLACED THE NR 1 AC GENERATOR CONTROL UNIT. ALL SYSTEMS OPERATED SATISFACTORILY. (M)SDR RAIA960140Gen Contl Unit · looseSTL - FLT 7180 - RIGHT GENERATOR FAULTED IN-FLIGHT, WILL NOT RESET. MAINTENANCE RERACKED RIGHT GENERATOR CONTROL UNIT, PERFORMED GROUND RUNS, OPERATIONAL CHECK GOOD. (X)SDR 96UAL900064Idg Cable · shortedDESCENDING THROUGH 18,000 FEET, LOST RIGHT MAIN AC BUS, GENERATOR WOULD NOT RESET. BUS REMAINED OFF FOR REMAINDER OF FLIGHT. APU GENERATOR WOULD NOT POWER BUS. PASSENGERS REPORTED SPARKS FROM RIGHT ENGINE WHEN LIGHTS WENT OUT. A SHORTED IDG FEEDER CABLE ONSDR AALA960029Cables · chafedTUL - GROUND CABLE AND C-PHASE CABLE OF NR 1 IDG, CHAFING AT HYDRUALIC MODULE LINE, LEFT SIDE OF ENGINE. REPAIRED GROUND AND C-PHASE CABLES AND REPOSITIONED FOR CLEARANCE. TST, 19,154.41 HOURS. CYCLES, 7,633. (X)SDR DLM11960006Wire · damagedGENERATOR FEEDER CABLES DAMAGED, DUE TO SHORTING IN PYLON.SDR CA960123002Wire · chafed(CAN)AC GENERATOR WOULD FALL OFF LINE WITHOUT PATTERN OR CONSISTENCY. A, B & C PHASE WIRING FROM AC GENERATOR P702 TO AC GENERATOR CONTACTOR K1 WAS REPLACED. UPON REMOVAL A SMALL CHAFED AREA WAS FOUND ON THE PHASE B WIRING. THE CHAFING OCCURRED AT STATION 215 SDR 96ZZZX737Wire · chafedDURING FLIGHT, A ELECTRICAL SPARK WAS SEEN IN THE VICINITY OF THE OVERHEAD CIRCUIT BREAKER PANEL. REMOVED OVERHEAD ON PILOT'S SIDE AND FOUND A WIRE CHAFED AGAINST THE AFT RIGHT CORNER OF THE DL SWITCH BOX. CHAFE WAS REPAIRED.SDR 96ZZZX315Gen Control Pnl · failedKBOG - FLT 239 - AFTER APPROXIMATELY ONE HOUR INTO FLIGHT WITH ALL GENERATORS IN PARALLEL MODE, ALL LIGHTS IN AIRCRAFT WENT ON AND OFF SEVERAL TIMES. OPERATED GENERATORS IN ISOLATED MODE. AFTER APPROXIMATELY TWO MINUTES, NR 1 GENERATOR TRIPPED OFF-LINE WHEN
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