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 HEEA0011025Volt Regulator · defectiveGENERATOR WON'T COME ON LINE DURING HIGH AMB TEMPS.Sep 10, 1997 · N1073W · Bell 206L1SDR HEEA0011024Volt Regulator · defectiveGENERATOR TRIPS AND WILL NOT RESET.Sep 10, 1997 · N41791 · Bell 206L3SDR 97ZZZX3907Resistor · failedRESISTORS FAILED CAUSING CSD LOAD CONTROLLER TO FAIL AND MAINTAIN PROPER CYCLES. THIS IS THE SECOND TYPE OF THIS FAILURE. ORIGINAL PARTS CAME FROM MANUFACTURER.Aug 27, 1997 · Doug DC10*SDR 97ZZZX3906Resistor · failedRESISTORS FAILED CAUSING CSD LOAD CONTROLLER TO FAIL AND MAINTAIN PROPER CYCLES. THIS IS THE SECOND TYPE OF THIS FAILURE. ORIGINAL PARTS CAME FROM MANUFACTURER.Aug 27, 1997 · Doug DC10*SDR 97ZZZX4004Regulator · failedPILOT REPORTED COMPLETE AIRCRAFT ELECTRICAL POWER FAILURE. ATTEMPTS TO LOWER LANDING GEAR USING BOTH NORMAL AND EMERGENCY PROCEDURES FAILED. ELECTRICAL POWER FAILURE WAS TRACED TO A FAILED VOLTAGE REGULATOR, TOTAL HOURS 450. LANDING GEAR EMERGENCY EXTENSIONJul 31, 1997 · N6119J · Piper PA32R300SDR 97ZZZX3779Regulator · corrodedPART RECEIVED FROM SUPPLY WITH CORROSION ON TERMINAL ENDS. THESE ARE NEWLY OVERHAULED UNITS. SUBMITTER STATED THIS IS AN ONGOING PROBLEM, APPARENTLY, THIS AREA IS NOT BEING LOOKED AT DURING OVERHAUL.Jul 28, 1997 · Rkwell NA26540SDR 97ZZZX3778Regulator · corrodedPART RECEIVED FROM SUPPLY WITH CORROSION ON TERMINAL ENDS. THESE ARE NEWLY OVERHAULED UNITS. SUBMITTER STATED THIS IS AN ONGOING PROBLEM, APPARENTLY, THIS AREA IS NOT BEING LOOKED AT DURING OVERHAUL.Jul 28, 1997 · Rkwell NA26540SDR 97ZZZX3831Control Unit · failedLOW VOLTAGE LIGHT ILLUMINATED IN-FLIGHT. INSPECTION REVEALED NO VOLTAGE TO FIELD TERMINAL ON ALTERNATOR. VERIFIED POWER SUPPLY TO ACU. NO ACU OUTPUT. INSTALLATION OF TWO ACU'S (ZERO TIME SINCE REPAIR/OVERHAUL) DID NOT RESTORE POWER. INSTALLATION OF ZEFTROJul 25, 1997 · N68725 · Cessna 152SDR 97ZZZX3830Control Unit · defectiveTHIS UNIT (NEWLY OVERHAULED) WAS REMOVED FROM SHELF STOCK AND INSTALLED IN PLACE OF AIRCRAFT'S FAULTY ALTERNATOR CONTROL UNIT. DURING INSTALLATION, NOTED THERE WAS NO OUTPUT VOLTAGE TO ALTERNATOR FIELD. UNIT WAS REMOVED WITH ZERO TIME IN SERVICE SINCE INSTALJul 25, 1997SDR 97ZZZX3829Control Unit · defectiveTHIS UNIT (ZERO TIME SINCE REPAIR) WAS REMOVED FROM SHELF STOCK AND INSTALLED IN PLACE OF AIRCRAFT'S FAULTY ACU. DURING INSTALLATION, NOTED THERE WAS NO OUTPUT VOLTAGE TO ALTERNATOR FIELD. UNIT WAS REMOVED WITH ZERO TIME IN SERVICE SINCE INSTALLATION.Jul 25, 1997SDR HEEA0010425Volt Regulator · malfunctionAFTER 10-15 MINUTES OF RUNNING STEADY, LOSES VOLTAGE ONE VOLT AT A TIME AND UNABLE TO RESET REGULATOR ADJUSTER UP OR DOWN.Jul 9, 1997 · N3178K · Bell 206L1SDR AU971274Regulator · failed(AUS) REGULATOR (2OFF) FAILED DUE TO SHORT CIRCUIT. SUSPECT CAUSED BY FAULTY ALTERNATOR.Jun 30, 1997 · Cessna U206GSDR 97ZZZX3097Control Unit · defectiveCESSNA/LAMAR PN DGR3 IS SUPPOSED TO BE A SUITABLE SUBSTITUTE FOR C611005-0101. HOWEVER, WHEN INSTALLED, ENGINE OFF, BATTERY/ALT SWITCH ON - LOW VOLTAGE LIGHT DOES NOT COME ON. SUSPECT DGR3 IS A SUBSTITUTE FOR ANOTHER CESSNA PN, NOT C611005-0101.Jun 22, 1997 · N5447P · Cessna 152SDR 97ZZZX3462Regulator · failedVOLTAGE REGULATOR FAILED DUE TO CROSSED WIRING AND TERMINALS.Jun 20, 1997 · N95MD · Aerosp SA365N1SDR PLGA970605AGcu · failedBOS - FLT 4265 - AFTER TAKEOFF THE LEFT GENERATOR FAILED. AN OPERATIONAL DECISION WAS MADE TO RETURN TO BOS. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED LEFT GCU. SYSTEM CHECKED GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)Jun 5, 1997 · N365BE · Saab 340BSDR HAIHEEA9955Volt Regulator · defectiveVOLTAGE REGULATOR CAUSING DEFECTION OF AIRCRAFT INSTRUMENTS.May 28, 1997 · N2133X · Bell 206L1SDR CA980325016Transistor · wrong part(CAN) POWER TRANSISTOR IN VOLTAGE REGULATOR BASE IS AN UNAPPROVED PART. IT SHOULD BE AN OEM 048504.May 26, 1997 · Dhav DHC6300SDR 97ZZZX3611Regulator · defectiveGENERATOR LIGHT WOULD NOT GO OUT. REGULATOR DEFECTIVE.Apr 4, 1997 · N4UV · Bell 230SDR 97ZZZX1235Control Unit · failedTHE GENERATOR CONTROL UNIT FAILED DURING FLIGHT (IFR). PLANE MADE AN EMERGENCY LANDING. NEW GENERATOR CONTROL UNIT INSTALLED. CHECKED OK.Mar 15, 1997 · N93LC · Cessna P210NSDR AU970090Regulator · burnt(AUS) RH ALTERNATOR VOLTAGE REGULATOR BURNT OUT DUE TO FAILURE OF THE DRIVER TRANSISTOR IN THE ALTERNATOR FIELD WINDINGFeb 9, 1997 · Bnorm BN2B20SDR HEEA978869Volt Regulator · failedGENERATOR WILL NOT COME ON LINE. VOLTAGE REG MALFUNCTIONJan 14, 1997 · N2764F · Bell 206L1SDR 97ZZZX194Regulator · malfunctionINSTALLED OVERHAULED ALTERNATOR AND NEW VOLT REGULATOR AT 769 TTSN. AT 833 HRS REGULATOR FAILED. INSTALLED THE OLD ORIGINAL REGULATOR AND SYSTEM FUNCTIONS PROPERLY. SUBMITTER SUGGESTS RECALL ALL PFT, INC. REGULATORS IN SAME BATCH FOR CONFORMITY INSPECTION ADec 28, 1996 · N9970E · Cessna 182PSDR PNSA961206Gcu · malfunctionedENGINE WOULD NOT CRANK. REPLACED GCU, OPS CK OK.Dec 27, 1996 · N9602F · Cessna 208SDR 97ZZZX31Gcu · failedPILOT REPORTED WHILE EN ROUTE FROM ONT TO SBA, THE RED GENERATOR OFF LIGHT ILLUMINATED. THE STAND-BY ALTERNATOR DID NOT COME ON LINE. THE STAND-BY ELECTRICAL POWER ON LIGHT NOR THE STAND-BY ELECTRICAL POWER OFF LIGHT ILLUMINATED. THE AIRCRAFT WAS OPERATING Dec 20, 1996 · N872FE · Cessna 208BSDR CA970206012Wire · misinstalled(CAN) SUBMITTER SUSPECTS INCORRECT WIRING OF SYSTEM PERFORMED. VARIOUS FAULTS WITH VOLTAGE REGULATOR AND GENERATOR SYSTEMS.Dec 12, 1996 · Piper PA31TSDR 97ZZZX11Regulator · inoperativeTROUBLESHOT ELECTRICAL SYSTEM AND FOUND VOLTAGE REGULATOR TO BE INOPERATIVE.Dec 1, 1996 · N7731J · Piper PA32260SDR HEEA968461Volt Regulator · failedWHEN INSTALLED ON AIRCRAFT, VOLTAGE REGULATOR WOULD NOT FUNCTION.Nov 6, 1996 · N2135V · Bell 206L1SDR HEEA968460Volt Regulator · failedWHEN INSTALLED ON AIRCRAFT, VOLTAGE REGULATOR WOULD NOT FUNCTION. TIME SINCE REPAIR 0:00.Nov 6, 1996 · N2135V · Bell 206L1SDR HEEA968428Volt Regulator · malfunctionREG WOULD NOT ADJUST UP OR DOWN. (26.5 VOLTS ALL THE TIME)Nov 4, 1996 · N6251V · Bell 206L3SDR 96ZZZX5484Regulator · erraticVOLTAGE REGULATOR BECAME UNSTABLE ALLOWING ALTERNATOR TO DROP OFF-LINE. REGULATOR WOULD NOT ADJUST, REQUIRED REPLACEMENT. UNIT LAST OVERHAULED BY NV2R045L.Oct 17, 1996 · N36319 · Piper PA34200TSDR 96ZZZX5933Regulator · defectiveNR 2 GEN FALLS OFF LINE. REMOVED AND REPLACED VOLT REG.Oct 16, 1996 · N365SJ · Aerosp SA365NSDR HEEA968295Regulator · defective#2 GENERATOR WILL NOT COME ON LINE.Oct 14, 1996 · N217UC · Bolkms BK117B1SDR CA970311015Volts Regulator · not charging(CAN) ONLY PRODUCING 25 VOLTS. GENERATOR NOT CHARGING BATTERY.Sep 9, 1996 · Bell 206BSDR ERAA96305D.C. Controller · failed#1 GENERATOR INOP WITH THIS REGULATOR INSTALLED. CHANGED REGULATOR AND GENERATOR WORKED FINE. UNIT WAS PURCHASED AS EXCHANGE AND ONLY HAD 4 HRS ON IT.Sep 5, 1996 · N422EH · Bell 412SDR HEEA967776Volt Regulator · wrong partsREGULATOR NEEDS EVALUATION FOR CORRECT CIRCUIT BOARDS.Sep 3, 1996 · Bell 206L1SDR HEEA967775Volt Regulator · wrong partsREGULATOR NEEDS EVALUATION FOR CORRECT CIRCUIT BOARDS.Sep 3, 1996 · Bell 206L1SDR HEEA967774Volt Regulator · wrong partsREGULATOR NEEDS EVALUATION FOR CORRECT CIRCUIT BOARDS.Sep 3, 1996 · N21240 · Bell 206L1SDR 96ZZZX4735Regulator · failedREGULATOR FIELD LINE WENT TO FULL VOLTAGE CONDITION CAUSING OVERVOLTAGE PROTECTION TO DISABLE SYSTEM. REPLACED VOLTAGE REGULATOR TO SOLVE PROBLEM.Aug 31, 1996 · N732TG · Cessna T210MSDR CA960909008Regulator · malfunction(CAN) ON STARTUP, LOADMETER SPIKES WHEN GENERATOR TURNED ON, THEN LOAD STAYS HIGHER THAN NORMAL FOR A LONG TIME. VOLTAGE REGULATOR REPLACED.Aug 24, 1996 · Bell 204BSDR 96ZZZX4414Adapter · misinstalledQEM REGULATOR, P/N 20082, WAS NOT AVAILABLE SO A ELECTRODELTA REGULATOR, P/N VR415F, THAT HAS A DIFFERENT CONNECTOR WAS INSTALLED WITH ADAPTER CABLE, P/N 800331-721. THE QEM REGULATOR INTERNAL GROUND ORIGINALLY ATTACHED TO SHELL OF ALUMINUM MS TYPE CANNON PLUAug 2, 1996 · N6980V · Mooney M20CSDR 96ZZZX3874Regulator · failedREGULATOR FAILED IN-FLIGHT. REGULATOR REPLACED AND ADJUSTMENTS MADE IAW CESSNA SM.Jul 6, 1996 · N4573V · Cessna 414ASDR 96ZZZX3423Regulator · overvoltageREGULATOR OVERVOLTAGED. BOTH ALTERNATORS DROPPED OFF-LINE. PILOT FAILED TO RESET, CONSEQUENTLY, THE BATTERY DISCHARGED AND A TOTAL ELECTRICAL SHUT DOWN OCCURRED. THE AIRCRAFT LANDED WITHOUT INCIDENT.Jun 28, 1996 · N27354 · Piper PA31350SDR AU961014Relay · mis wired(AUS) OVERVOLTAGE RELAY INCORRECTLY WIRED - 'BATTERY' AND 'LOAD' LEADS TRANSPOSED CAUSING OVERVOLTAGE RELAY TO MALFUNCTION - LOSS OF BATTERY VOLTAGE - LOGBOOK FAILED TO REVEAL ANY WORK CARRIED OUT IN THIS AREA - PERSONNEL/MAINTENANCE ERRORJun 27, 1996 · Gulstm 114SDR 96ZZZX3822Capacitor Assy · explodedGENERATOR AND GENERATOR CONTROL UNIT FILTER INSTALLATION, CAPACITOR ASSEMBLY. CAPACITOR PART NUMBER BLEW A HOLE IN THE END, BLEW ONE LEAD OFF ITS CONTACT, AND BURNED THE INSULATION FROM THE WIRE, FOR APPROXIMATELY 1 INCH.Jun 24, 1996 · N260QS · Cessna S550SDR HEEA967436Regulator · failedGENERATOR WOULD NOT COME ON LINE AND FAILED START BENCH TEST.Jun 21, 1996 · N1078C · Bell 206L1SDR CA960620002Regulator · malfunction(CAN) DURING RUN-UP FOR OIL CHANGE THE ALTERNATOR SWITCH WAS CYCLED AND THE AMMETER SHOWED A FULL CHARGE. IN THE 'ON' POSITION A NORMAL RATE OF CHARGE WAS NOTED. WITH THE MASTER IN THE 'OFF' POSITION THE PANEL LIGHTS BECAME VERY BRIGHT. THE AUTOMOTIVE VOLTAGE Jun 11, 1996 · Cessna 172MSDR HEEA967212Volt Regulator · defectiveGENERATOR WILL NOT COME ON LINE.May 9, 1996 · N4282Z · Bell 206L3SDR HEEA967179Regulator · malfunctionLOAD METER DROPS WHEN VHF IS KEYED.May 9, 1996 · N2775A · Bell 206L1SDR HEEA967118Regulator · malfunctionWHEN VHF IS KEYED, AIRCRAFT VOLTAGE DROPS BY 4 VOLTS.May 7, 1996 · N4282Z · Bell 206L3SDR 96ZZZX2503Regulator · defectiveLOW VOLTAGE WARNING FAILED AND WOULD NOT ILLUMINATE. LOW VOLTAGE WARNING LIGHT ON INSTRUMENT PANEL. DISSASSEMBLED REGULATOR TO INSPECT, AS IT IS OUT OF WARRANTY. FOUND COLD SOLDER JOINTS IN SEVERAL LOCATIONS. REGULATOR MANUFACTURED MAY, 1995.Apr 19, 1996 · N52139 · Cessna 172P
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