JASC 2436

Service difficulty reports · 313

Reports filed under 2436 · DC 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 = '2436'
  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 COMA9630103Gcu · out of adjustLEFT DC GENERATOR FAILED AND WOULD NOT RESET. ADJUSTED THE LT GENERATOR CONTROL UNIT.Apr 16, 1996 · N341CA · Saab SF340ASDR CA960415006Control Unit · internal failure(CAN)#1 GENERATOR FAILED. FOUND GENERATOR CONTROL UNIT HAD INTERNAL FAILURE. REPLACED GCU.Apr 11, 1996 · Bag BAE146200ASDR HEEA966944Regulator · defectiveREGULATOR UNSTABLE, WILL NOT HOLD SET VALUES. KNOCKS GENERATOR OFF LINE.Apr 8, 1996 · Bell 206B3SDR 96ZZZX1829Regulator · defectiveNR 2 VOLTS LOW. VOLTAGE REGULATOR ALLOWS OUTPUT OF 26.9 VOLTS. REMOVED AND REPLACED VOLTAGE REGULATOR.Mar 20, 1996 · N365SJ · Aerosp SA365NSDR COMA9630058Gcu · defectiveLEFT ENGINE WILL NOT START (NO ROTATION) USING CROSS GENERATOR PROCEDURE. REPLACED THE LT GENERATOR CONTROL UNIT. PART TOTAL CYCLES, 6,629.Mar 8, 1996 · N341CA · Saab SF340ASDR S2YA960001Gcu · failedMKE - FLT 1099 - THE LT DC GENERATOR WOULD NOT RESET AFTER TAKEOFF, RETURNED TO MKE. MAINTENANCE REPLACED THE LT DC GENERATOR CONTROL UNIT, PARALLELED THE CIRCUIT, CHECKED FOR PROPER OPERATION, AND RETURNED TO SERVICE. (X)Feb 21, 1996 · N145SK · Beech 1900DSDR 96ZZZX3255Regulator · defectiveGENERATOR WILL NOT COME ON LINE. REMOVED AND REPLACED.Feb 10, 1996 · N317MC · Bolkms BK117C1SDR HEEA966629Regulator · failedINTERMITTENTLY FALLS OFF LINE AFTER UNIT WARMS UP. IF TURNED OFF IT WILL NOT COME ON LINE. VOLTAGE KEPT GOING UP TO 30 VOLTS.Feb 5, 1996 · N3108E · Bell 206L3SDR HEEA966534Regulator · malfunctionGENERATOR TURNING AS A MOTOR AT 15-20% N1 AFTER SHUTDOWN. REGULATOR MALFUNCTION.Jan 26, 1996 · N5012V · Bell 206L1SDR HEEA966476Regulator · defectiveVOLTAGE REGULATOR WOULD NOT HOLD VOLTAGE SETTING.Jan 16, 1996 · N3108E · Bell 206L3SDR 96ZZZX1027Regulator · shortedVOLTAGE REGULATOR SHORTED OUT CAUSING RUN AWAY ALTERNATOR. REPLACED REGULATOR. SUBMITTER SUGGESTS NEW PART NUMBER REGULATOR, ELD-069-11.Dec 12, 1995 · N51742 · Enstrm 280CSDR 96ZZZX84Regulator · wire detachedFIELD WIRE SEPARATED FROM CONNECTOR PLUG ON THE ALTERNATOR CONTROL UNIT. SUSPECT CAUSE - VIBRATION AND FATIGUE ON WIRE.Dec 4, 1995 · N737LD · Cessna 172NSDR 95ZZZX6825Regulator · mislabeledTHE WIRING TERMINALS HAVE INCORRECT DECAL LABELING. THE DECAL IS INSTALLED 180 DEGREES OFF. THIS CAUSES THE BUS, FIELD, GROUND, AND PARALLEL WIRE TERMINALS TO BE INCORRECTLY LABELED.Nov 29, 1995 · N3734M · Beech 76SDR 95ZZZX6824Regulator · mislabeledTHE WIRING TERMINALS HAVE INCORRECT DECAL LABELING. THE DECAL IS INSTALLED 180 DEGREES OFF. THIS CAUSES THE BUS, FIELD, GROUND, AND PARALLEL WIRE TERMINALS TO BE INCORRECTLY LABELED.Nov 29, 1995 · N3734M · Beech 76SDR HEEA956044Regulator · defective#2 GENERATOR WILL NOT COME ON LINE.Nov 15, 1995 · N230UN · Bell 230SDR 96ZZZX267Regulator · failedPRECAUTIONARY LANDING DUE TO TOTAL ELECTRICAL FAILURE. PILOT WRITE UP: LOST ALL ELECTRICAL POWER, INSTRUMENT WENT TO ZERO, NO LOADMETER INDICATION. MAINTENANCE EVALUATION REVEALED VOLTAGE REGULATOR FAILED.Nov 6, 1995 · N67534 · Bell 206BSDR HEEA955919Regulator · defective#2 GENERATOR LIGHT WILL NOT GO OUT. VOLTAGE REG DEFECTIVE.Oct 24, 1995 · N230UN · Bell 230SDR COMA9531174Gcu · defectiveTHE LEFT ENGINE WILL NOT ROTATE DURING START CYCLE. REPLACED THE LEFT DC GENERATOR CONTROL UNIT.Oct 24, 1995 · N320CA · Saab SF340ASDR 96ZZZM19Voltage Reg · failedAIRCRAFT EXPERIENCED ELECTRICAL SYSTEM FAILURE IN FLIGHT. INVESTIGATION REVEALED THAT THE RIGHT ALTERNATOR HAD BEEN PUTTING OUT FULL VOLTAGE, AND WAS PROBABLY FULL FIELDED. SUBMITTER STATES, SUSPECT DEFECTIVE VOLTAGE REGULATOR, COMPONENTS DAMAGED TOO BADLY TOct 11, 1995 · N300SK · Piper PA60600SDR HEEA955799Regulator · defectiveTROUBLESHOOTING GENERATOR TURNING AS A MOTOR AT 15-20% N1 AFTER SHUTDOWN.Sep 21, 1995 · N5012V · Bell 206L1SDR HEEA955777Regulator · failedGENERATOR LIGHT REMAINS ON. VOLTAGE REG DEFECTIVE.Sep 18, 1995 · N230UN · Bell 230SDR 95ZZZX5756Regulator · failedAIRCRAFT IN CLIMB TO CRUISE ALTITUDE, NOTICED SMOKE SMELL AND THEN SMOKE IN THE COCKPIT AND CABIN, CONTINUED TO GET WORSE AND THEN A TOTAL ELECTRICAL FAILURE OF ALL COMPONENTS. FOUND LEFT (NR 1) VOLTAGE REGULATOR INOP. SUSPECT THE OVERVOLTAGE RELAY INSIDE THSep 1, 1995 · N6025Y · Beech 58SDR 95ZZZX5596Regulator · failedEXACT FAILURE SEQUENCE UNKNOWN. AFTER TOTAL ELECTRICAL FAILURE, MAINTENANCE FACILITY FOUND LEFT VOLTAGE REGULATOR AND REVERSE-CURRENT RELAY RUINED INTERNALLY. SUBITTER SUSPECTS VOLTAGE FLUCTUATIONS CAUSED RIGHT SYSTEM TO DROP OFF-LINE. TROUBLESHOOTING STILLAug 22, 1995 · N2880A · Beech 99SDR HEEA955595Regulator · malfunction#2 GENERATOR LIGHT WILL NOT GO OUT.Aug 17, 1995 · N230UN · Bell 230SDR 96ZZZX1013Regulator · defectiveGENERATOR WILL NOT COME ON LINE, FAULTY REGULATOR.Aug 15, 1995 · N745H · Bell 214STSDR 96ZZZX1012Regulator · faultyGENERATOR WILL NOT COME ON LINE DUE TO FAULTY REGULATOR.Aug 14, 1995 · N745H · Bell 214STSDR HEEA955584Regulator · defectiveGENERATOR KICKS OFF LINE.Aug 9, 1995 · N2772A · Bell 206L1SDR HEEA955572Regulator · defectiveGENERATOR WILL NOT COME ON LINE.Aug 8, 1995 · N4180F · Bell 206L3SDR HEEA955555Regulator · defectiveREGULATOR DEFECTIVE. GENERATOR COMES OFF LINE 8 TIMES DURING 45 MINUTE FLIGHT.Aug 8, 1995 · N2246Q · Bell 206L1SDR HEEA955554Regulator · defectiveREGULATOR DEFECTIVE. GENERATOR WOULD NOT COME ON LINE.Aug 8, 1995 · N31801 · Bell 206L3SDR HEEA955553Regulator · defectiveREGULATOR DEFECTIVE CANNOT DECREASE BELOW 40 VOLTS.Aug 8, 1995 · N2246Q · Bell 206L1SDR 96ZZZX997Regulator · faultyGENERATOR POWER WILL NOT COME ON LINE, FAULTY REGULATOR.Aug 8, 1995 · N703H · Bell 212SDR 96ZZZX998Regulator · defectiveGENERATOR WILL NOT COME ON LINE.Aug 7, 1995 · N703H · Bell 212SDR HEEA955524Regulator · malfunctionGENERATOR DELAYED IN COMING ON LINE.Aug 2, 1995 · N2251A · Bell 206L1SDR HEEA955518Regulator · malfunctionGENERATOR COMING ON AND OFF LINE.Aug 2, 1995 · N31073 · Bell 206L3SDR HEEA955511Regulator · failedPEGS VOLTAGE METER INDICATOR TO TOP END. FOUND Q4 TRANSISTOR BAD AND CIRCUIT BOARD BURNT AROUND R65 RESISTOR. SCRAPPED VOLTAGE REGULATOR.Aug 2, 1995 · N724MB · Bolkms BO105SSDR HEEA955508Regulator · malfunctionGENERATOR WILL NOT COME ON LINE. REPLACED Q4 TRANSISTOR P/N 03-0044-28. BENCH CHECK GOOD.Aug 2, 1995 · N54197 · Bolkms BO105SSDR HEEA955507Regulator · malfunctionGENERATOR WILL NOT COME ON LINE. SCRAPPED VOLTAGE REGULATOR AT PHI.Aug 2, 1995 · N54197 · Bolkms BO105SSDR HEEA955490Regulator · malfunctionGENERATOR LIGHT STAYS ON WHILE GENERATOR IS OPERATING.Jul 31, 1995 · N230UN · Bell 230SDR HEEA955404Regulator · defectiveCOULD NOT ADJUST VOLTAGE.Jul 20, 1995 · N57908 · Aerosp AS355F1SDR HEEA955373Regulator · malfunctionTROUBLESHOOTING R/H GENERATOR TO COME ON LINE.Jul 20, 1995 · N57908 · Aerosp AS355F1SDR HEEA955218Regulator · defectiveGENERATOR LIGHT STAYS ON WITH GENERATOR ON LINE.Jun 22, 1995 · N230UN · Bell 230SDR HEEA955147Volt Regulator · malfunctionGENERATOR WOULD NOT COME ON LINE. REPLACED CR8 DIODE P/N 3056 ON CIRCUIT BOARD A1. BENCH CHECK GOOD.Jun 13, 1995 · N5000K · Bell 206L1SDR 95ZZZX4359Regulator · failedUPON GEAR RETRACTION DURING A 'GO-AROUND', THE CHARGING SYSTEM WENT INTO A HIGH-VOLTAGE RUNAWAY. THE OVERVOLTAGE RELAY DID NOT TRIP TO PROTECT THE SYSTEM. THE BATTERY MASTER RELAY BURNED OUT. WITHOUT THE BATTERY IN THE CIRCUIT, THE VOLTAGE WENT VERY HIGH ANJun 13, 1995 · N364DZ · Beech A36TCSDR 95ZZZX3310Regulator · water contamCUSTOMER COMPLAINED ALTERNATOR WAS CUTTING IN AND OUT. PULLED IN SHOP, CHECKED ALTERNATOR. CHECKED VOLTAGE REGULATOR (ALTERNATOR CONTROL UNIT). IT WAS OK. RAN UP AIRCRAFT, ALTERNATOR STILL INTERMITTENT. INSPECTED WIRING, NO PROBLEM FOUND. REMOVED ALTERNAJun 12, 1995 · N737VT · Cessna TR182SDR 95ZZZX3464Regulator · failedVOLTAGE REGULATOR FAILED AND OVERVOLTAGE CONDITION DAMAGED AVIONICS. AS VOLTAGE CLIMBED AND CIRCUIT (50A) BREAKER OPENED, AN ARC DEVELOPED WHICH MELTED THE BI-METAL ELEMENT TO .1250 INCH BACK FROM CONTACT CAUSING SMOKE IN COCKPIT. VERY HIGH VOLTAGE IS REQUIRJun 8, 1995 · N80534 · Cessna 172MSDR 95ZZZX4018Regulator · malfunctionAIRCRAFT MADE FORCED LANDING (NO ELECTRICAL POWER). PILOT HAD TO PERFORM MANUAL LANDING GEAR EXTENSION. ON LANDING, NOSE GEAR COLLAPSED (GEAR WAS NOT FULLY EXTENDED). NEW PROPELLER INSTALLED AND ENGINE RUN-UP, TROUBLESHOOTING DETERMINED A FAULTY VOLTAGE REGMay 28, 1995 · N6ZM · Beech A36SDR HEEA955083Regulator · defectiveDELAY IN COMING ON LINE. REPLACED R65 RESISTOR P/N 05-508624 ON CIRCUIT BOARD 51565-312R. BENCH CHECK GOOD.May 25, 1995 · N54197 · Bolkms BO105SSDR HEEA955082Regulator · failedGENERATOR DOES NOT COME ON LINE. REPLACED R65 RESISTOR P/N 05-508624 ON CIRCUIT BOARD 51565-312R. BENCH CHECK GOOD.May 25, 1995 · N617 · Bolkms BO105SSDR HEEA955011Regulator · defectiveGENERATOR WOULD NOT COME ON LINE.May 18, 1995 · N3116L · Bell 206L3
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