JASC 2434
Service difficulty reports · 849
Reports filed under 2434 · DC 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 = '2434' 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 = '2434' 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 RAIA00501057Generator · failedSTL - NR 2 DC GENERATOR FAULTED AFTER ENGINE START. MAINTENANCE REMOVED AND REPLACED NR 2 GENERATOR.SDR CA041202003Generator · failed(CAN) RT DC GENERATOR FAILED. SMOKE NOTICED IN THE CABIN BY PASSENGER.SDR UAT2005F00004Alternator · failedALTERNATOR FAILED AT 57.4 TSO. REPLACED WITH SERVICEABLE UNIT. OPS CHECK GOOD. (K)SDR UAT2005F00003Alternator · failedALTERNATOR FAILED AT 92.5 TSO. REPLACED WITH SERVICEABLE UNIT. OPS CHECK GOOD. (K)SDR UAT2005F00002Alternator · failedALTERNATOR FAILED AT 391.8 TSO. REPLACED WITH SERVICEABLE UNIT. OPS CHECK GOOD. (K)SDR UAT2005F00001Alternator · failedALTERNATOR FAILED AT 55.1 TSO. REPLACE WITH SERVICEABLE UNIT. OPS CHECK GOOD. (K)SDR UAT2005F00000Alternator · failedALTERNATOR FAILED AT 10.6 TSO. REPLACED WITH SERVICEABLE UNIT. OPS CHECK GOOD. (K)SDR 2004F00429Sensor · burned outWHILE IN CRUISE FLIGHT, THE PILOT NOTICED SPARKS COMING FROM THE LEFT ENGINE FORWARD COWL AREA. AS A PRECAUTION, THE ENGINE WAS SHUTDOWN AND SECURED. THE AIRCRAFT THEN MADE AN UNEVENTFUL LANDING. UPON INVESTIGATION, IT WAS DISCOVERED THAT THE ALTERNATOR OUTSDR CA041126005Brush Block · worn(CAN) DURING CRUISE FLIGHT, GEN 2 LIGHT CAME ON. PILOT PULLED GEN 2 CIRCUIT BREAKER AND LANDED AT BASE. INVESTIGATION REVEALED A SLIGHT CONDUCTIVE PATH BETWEEN THE TWO BRUSHES WITH THE BRUSH BLOCK ASSY REMOVED BELIEVED TO BE CAUSED BY BRUSH BLOCK DUST. THE SLISDR CA041115004Generator · intermittent(CAN) ON CLIMB OUT THE PILOT OBSERVED THAT ONLY ONE GENERATOR WAS ACCEPTING LOAD. DECIDED TO RETURN TO DEPARTURE AERODROME WITHOUT CARRYING OUT ANY CONFIRMATION CHECKS. A SUBSEQUENT MAINTENANCE INSPECTION DETERMINED THAT AT LIGHT ELECTRICAL LOADS BOTH GENERASDR 2005FA0000158Alternator · failedPILOT DECLARED EMERGENCY, TOTAL ELECTRICAL FAILURE. DIAGNOSTIC INSPECTION REVEALED ALTERNATOR FAILURE. PILOT FAILED TO SEE WARNING LIGHT; DISCHARGE ON AMMETER AND LOW VOLT READING ON VOLT METER. (GL11200505028) (K)SDR GM82004F00005Alternator · inoperativeALTERNATOR, INOPERATIVE.SDR GM82004F00004Alternator · shortedALTERNATOR, FIELD SHORT TO GROUND, ROTOR JAMMED.SDR GM82004F00003Alternator · failedALTRNATOR, LOW FIELD RESISTANCE.SDR GM82004F00002Alternator · failedALTERNATOR, HIGH FIELD RESISTANCE.SDR GM82004F00001Alternator · failedALTERNATOR, HIGH FIELD RESISTANCE.SDR GM82004F00000Alternator · failedALTERNATOR, HIGH FIELD RESISTANCE.SDR 2005FA0000133Housing · misrepairedIN PREPARING ALTERNATOR FOR INSTALLATION. CLOSE INSPECTION REVEALED THAT LIGHT PRESSURE ON NEGATIVE DIODE CAUSED DIODE TO BECOME UNSEATED FROM BORE IN HOUSING. INSPECTION OF BORE SHOWED THAT THE BORE WAS OVERSIZED AND HAD BEEN PAINTED DURING OVERHAUL. DIODESDR CA040830011Generator · failed(CAN) AFTER LANDING PILOT NOTICED VOLTAGE READING WAS AT 0. GENERATOR WAS REPLACED ANDAIRCRAFT WAS RETURNED TO SERVICE.SDR CA040608001Drive Shaft · shearedON RETURN, PILOT NOTED GEN 2 FAILURE IN CRUISE AND CONT`D ON TO COMPLETE FLT. NR 1 GEN AUTO COVERS FOR NR 2 GEN WHEN A FAILURE OCCURS. INVESTIGATION BY MX REVEALED SHEARED DRIVE SHAFT FOR NR 2 GEN. SHAFT BROKE AT PROPER SHEAR POSITION WITH NO DAMAGE TO ANY SDR AUS20040265Alternator · failed(AUS) ALTERNATOR FAILED IN FLIGHT.SDR AUS20040270Drive Shaft · sheared(AUS) NR 2 GENERATOR DRIVESHAFT SHEARED.SDR 2004FA0000316Wire · shortedTHE 3 WIRES COMING FROM THE STATOR ARE SHORTED OUT ON THE CASE. THIS IS 4TH ALTERNATOR OVERHAUL BY FACILITY WITH THE SAME FAILURE, ALL 4 ALTERNATORS HAD LESS THAN 390 HOURS SINCE OVERHAUL. THERE NEED TO BE MORE INSULATION ON THE 3 WIRES.SDR 2004FA0000347Alternator · failedOVERHAULED GEAR DRIVEN ALTERNATOR REPEATED FAILURE. ALTERNATOR P/N 646843 S/N D022878 WENT TO TWO TIMES FOR REPAIR OR OVERHAUL AND FAILED VERY SOON AFTERWARDS EACH TIME. 25 HOURS FIRST TIME AND .5 HOURS SECOND TIME. FIRST TIME WO NR MW25590 SECOND TIME WO NR MSDR PO82004F00000Alternator · failedALTERNATOR FAILED INFLIGHT AFTER 134 HOURS TSO. UNIT SENT OUT TO A CERTIFIED REPAIR STATION FOR REPAIR. TEARDOWN REPORT STATED ONE BAD BEARING AND A FAILED STATOR. PREVIOUS OVERHAULED ALTERNATOR LASTED FIVE MINUTES BEFORE AND THE OVERHAULED UNIT PRIOR TO THSDR AUS20040106Drive Shaft · worn(AUS) NR 2 GENERATOR DRIVESHAFT WORN AT INNER (FORWARD) BEARING AREA.SDR Z3M2004F00000Alternator · failedALTERNATOR FAILED TO PRODUCE ADEQUATE VOLTAGE UNDER HIGH LOADS. REPLACED ALTERNATOR.SDR AUS20040082Alternator · failed(AUS) ALTERNAOR FAILED.SDR KPVA20042Circuit Card · failedNR 2 DC GEN CAUTION LIGHT ILLUMINATED BRIEFLY ON TAKEOFF ROLL, ON BRIEFLY DURING TAXI IN. INSPECTED NR 2 DC CAUTION LIGHT AND DEFERRED IAW MEL 24-16. COMPLIED WITH MAINTENANCE PROCEDURES AND REQUIRED. CAT (B) 1/21/04, DUE 1/24/04. PLACARDS INSTALLED. REMOSDR CA040130007Housing · cracked(CAN) ON INSPECTION OF ALTERNATOR HOUSING 2 RIBS WERE FOUND CRACKED COMPLETELY THROUGH. THERE HAVE BEEN TWO OTHER SIMILAR ALTERNATORS FOUND WITH CRACKED RIBS.SDR 2004FA0000031Stud · meltedPOSITIVE TERMINAL ON ALTERNATOR MELTED. INSPECTED ALTERNATOR WIRING HARNESS FOR CORRECT ROUTING AND DAMAGE. PROBABLE CAUSE FOR THIS MALFUNCTION OCCURRED IN THE ALTERNATOR ITSELF, AS THE POSITIVE STUD AND NUT WERE RECOVERED WITH THE NUT IN THE TORQUED POSITION.SDR AUS20031324Alternator · faulty(AUS) ALTERNATOR SUSPECT FAULTY. ALTERNATOR BENCH TESTED OK, BUT REPLACED DUE TO HIGH HOURS. FAULT HAS NOT REOCCURRED SINCE.SDR AUS20031308Brush Block · worn(AUS) ALTERNATOR BRUSHES WORN UNEVENLY. GROUND BRUSH WORN COMPLETELY AWAY WHILE THE POSITIVE BRUSH APPEARED IN NEAR NEW CONDITION.SDR AUS20031305Brushes · worn(AUS) ALTERNATOR GROUND BRUSH ALMOST WORN AWAY. POSITIVE BRUSH WAS HARDLY WORN.SDR AUS20031302Brush Block · worn(AUS) ALTERNATOR GROUND BRUSH COMPLETELY WORN AWAY. SLIP RING DAMAGED BY WORN BRUSH.SDR AUS20031183Alternator · failed(AUS) RT ALTERNATOR FAILED.SDR 2003FA0001083Brushes · wornALTERNATOR BRUSHES EXCESSIVELY WORN FOR THE AMOUNT OF TIME ON ALTERNATOR. (3/16 IN.LONG) A NEW BRUSH IS .5 INCH LONGSDR AUS20031107Generator · failed(AUS) LT AND RT GENERATORS FAILED.SDR 2003FA0001017Mount · brokenDURNG PROGRESSIVE INSPECTION OF ENGINE FOUND LOWER ALTERNATOR MOUNTING HOLE BROKEN OFF. PROBABLE CAUSE IS ENGINE VIBRATION OR MISALIGNMENT OF ALTERNATOR ON ENGINE MOUNTING BRACKET. RECOMMENDATINS IS TO INSTALLED AND RUBBER SHOCK MOUNT IN THIS AREA OR SHIMES SDR AUS20031252Brushes · worn(AUS) ALTERNATOR BRUSHES BADLY WORN. ALTERNATOR FAILED CAUSING WIRING TO BURN AND FAILURE OF ALTERNATOR CONTROL UNIT AND CURRENT SENSOR AND FUSING OF THE ALTERNATOR FIELD CIRCUIT BREAKER.SDR AUS20030987Starter Gen · faulty(AUS) NR 1 DC STARTER-GENERATOR SUSPECT FAULTY.SDR 2003FA0000940Bearing · overheatedALTERNATOR HARD TO ROTATE DUE TO NON-DRIVE END BEARING BEING PRESSED INTO HOUSING TOO FAR. BEARING COVER FOUND (BLUED) DUE TOO EXCCESIVE HEAT. DRIVE PULLEY HARD TO ROTATE BY HAND. NOTE: 0 TIME SINCE OVERHAUL!SDR 2003FA0000939Attach Fitting · crackedCOMPONENT WAS CRACKED IN THREE PLACES, THIS IS IN THE DRIVE ATTACHMENT BASE. (JUST FORWARD OF THE ATTACHMENT PLATE), ON THE WEB THAT SECURES THE ALTERNATOR. OWNER SAID THAT HE HAD REPLACED THE ALTERNATOR 7 MONTHS AGO FOR THE SAME PROBLEM, CRACKED JUST AFT OFSDR AUS20030932Bearing · disintegrated(AUS) ALTERNATOR SLIP RING END ROLLER BEARING DISINTEGRATED. ROTORPOLED.SDR AUS20030931Alternator · failed(AUS) ALTERNATOR FAILED.SDR CA030904001Starter Gen · failed(CAN) NR 1 DC STARTER- GENERATOR SHAFT SHEARED ON APPROACH. PASSENGERS NOTICED SPARKS COMING FROM THE NACELLE. THE INTENSE HEAT DISCOLOURED AND BLISTERED THE PAINT AND WARPED THE COMPOSITE AROUND THE GENERATOR EXHAUST OUTLET. STARTER-GENERATOR REPLACED, COWSDR CA030908005Brushes · worn(CAN) PREMATURELY WORN FIELD BRUSHES, SHORTED FIELD CIRCUIT FAILING ALTERNATOR, VOLTAGE REGULATOR AND OVERVOLTAGE SENSOR.SDR AUS20030890Alternator · failed(AUS) ALTERNATOR FAILED IN FLIGHT. LIMITED INFORMATION PROVIDED.SDR AUS20030840Alternator · failed(AUS) ALTERNATOR FAILED. INVESTIGATION FOUND BEARING AND DIODE FAILED.SDR AUS20030860Diode · failed(AUS) DC ALTERNATOR DIODE FAILED.
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