JASC 3452
Service difficulty reports · 624
Reports filed under 3452 · ATC Transponder 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 = '3452' 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 = '3452' 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 HEEA079785Transceiver · malfunctionedATC TRANSCEIVER INOPERATIVE. CLEANED ON/OFF SWITCH CONTACTS. STRAIGHTENED BENT CONTACTS ON ON/OFF SWITCH. REPAIRED PROBLEM. FOUND POWER OUT WEAK. REPLACED BAD V101 CAVITY. ADJUSTED PULSE WIDTH, POWER OUT AND FREQUENCY. REPAIRED. BENCH CHECK GOOD.SDR HEEA079784Transponder · failedTRANSPONDER WOULD NOT PASS CERTIFICATION. FOUND FREQUENCY TO BE INTERMITTENT. RESOLDERED LOOSE WIRES ON V101 AND ADJUSTED FREQUENCY AND POWER TO SPECS. INSTALLED GROOVE PIN ON LOCKING MECHANISM. BENCH CHECK GOOD.SDR AUS20020662Controller · faulty(AUS) ATC CONTROLLER FAULTY. INVESTIGATION FOUND THE CONTROLLER HAD ANUNSERVICEABLE PHOTOELECTRIC CELL. AIRCRAFT IS AN RAAF FALCON 900A26-070.SDR HEEA079049Transceiver · intermittentATC TRANSCEIVER MODE "C" INTERMITTENT AND TWO DIGITS OFF. IN SHOP FOR REPAIR.SDR 2002FA0000634Coax · wrong partDISCOVERED INCORRECT COAX USED IN FACTORY INSTALLATION OF ATCRBS TRANSPODNER SYSTEM. COAX INSTALLED IN AIRCRAFT OF TYPE NOT APPROVED BY EQUIPMENT MANUFACTURER. THIS LEAD TO TRANSPONDER SYSTEM FAILURE.SDR HEEA078758Transceiver · inoperativeWOULD NOT TRANSMIT. PERFORMED PRELIMINARY INSPECTION, FOUND V101 BAD, AND R477 BAD. REPLACED. REPAIRED. ADJUSTED TO SPECS. BENCH CHECK GOOD.SDR KBMA113803Transponder · inoperativeTRANSPONDER NOT GIVING REPLY LIGHT OR IDENTY. REPLACED WITH SERVICEABLE UNIT.SDR SWIA200210763Transponder · malfunctionedAFTER TAKEOFF, TRANSPONDER NR 1 REPORTED DIAG WITH NO ASSOCIATED NUMBER. ATC REPORTED NO ALTITUDE READOUT. SWITCHED TO NR 2 TRANSPONDER AND HAD NO REPLY LIGHT OR ALT INFORMATION AS REPORTED BY ATC. RETURNED TO PDX. RERACKED NR 1 TDR94 TRANSPONDER. INSPECTSDR HNAA0200025Control Head · burnedON LANDING CREW REPORTED A STRONG BURNING SMELL IN THE COCKPIT. TRACED SMELL TO DUAL MODE S ATC CONTROL HEAD. REPLACED CONTROL HEAD.SDR AUS20020233Resistor · misinstalled(AUS) TRANSPONDER VOLTAGE DROPPING RESISTOR INCORRECTLY MOUNTED. THE RESISTOR IS MOUNTED ON THE REAR OF THE TRANSPONDER MOUNTING RACK. THE INSTALLATION MANUAL STATES THAT IT MUST BE MOUNTED AWAY FROM THE AVIONICS STACK TO AVOID OVERHEATING OF THE POWER SUPPLY.SDR AUS20020232Mount · loose(AUS) TRANSPONDER MOUNT LOOSE. MOUNT MADE OF THIN METAL.SDR ARWA20020204TransponderLOG PAGE 108434. DISCREPANCY: BOTH TRANSPONDERS MODE "C" ALTTITUDE REPORTING INOPERATIVE, C/B's RESET, NO HELP. AIRCRAFT RETURNED TO KMIA AND LANDED OVERWEIGHT UNEVENTFULL. CORRECTIVE ACTION: REMOVED AND REPLACED BOTH #1  ATC TRANSPONDERS IAW MM 34-53-0 ACCSDR 2002FA0000157Transformer · shortedTRANSFORMER SHORTED.SDR 2001F00754Control Head · malfunctionedSMOKE FROM AROUND NR 2 TRANSPONDER CONTROL HEAD. REMOVED AND REPLACED NR 2 TRANSPONDER CONTROL HEAD, SYSTEM OPS CHECK GOOD. (M)SDR 01FDEA00999Connector · not seatedNR 1 & 2 TRANSPONDER INOP. RESET CONNECTOR ON ATC CONTROL PANEL. OPS CK GOOD PER MM 34-43-00-5 & BOEING SWPM 20-60-06.SDR HEEA076965Transponder · inoperativeINOPERATIVE. PENDING VENDOR REPAIR.SDR HEEA076964Transponder · inoperativeINOPERATIVE, WILL NOT TRANSMIT. PENDING VENDOR REPAIR.SDR HEEA076963Transponder · interferenceTRANSPONDER SQUAWKING 24000 FEET. REPLACED WITH SERVICEABLE PART.SDR HEEA076431Control Unit · will not testWON'T TEST PROPERLY. REPLACED WITH SERVICEABLE PART.SDR HEEA076428Transponder · malfunctionedTRANSMIT OFF FREQUENCY AND REPLY RATE IS LOW AND ERRATIC. REPLACED WITH SERVICEABLE PART.SDR HEEA076426Transceiver · malfunctionedWOULD NOT TRANSMIT POWER MODE C SIGNALS. IN SHOP REPAIR.SDR C2XA01CL211Transponder · failedCLE FLIGHT NR 3899 CREW REPORTED THAT THE NUMBER 1 TRANSPONDER NO MODE "C". NUMBER 2 TRANSPONDER ALREADY ON MEL. RETURNED TO CLE AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED, AND REMOVED AND REPLACED THE NUMBER 1 TRANSPONDER. SYSTEM OPERATIONAL CHECKSSDR 2001F00475Transponder · failedTRANSPONDER FAILED INFLIGHT. INSTALLED SERVICEABLE UNIT. (M)SDR 2001F00302Light · inoperativeTEST BUTTON QUIT WORKING, NO LIGHT. (M)SDR HEEA075592Control Panel · intermittentDIGITS INOPERATIVE. PERFORMED PRELIMINARY INSPECTION. FOUND HEADER BAD. DIGITS INTERMITTENTLY FLICKERS. DRIVER BOARD CAUSING SOME BRIGHT SEGMENTS ON DISPLAY. INSTALLED HEADER P305, J304, CAPACITOR NETWORK U301. DIGITS WILL NOT CHANGE WHEN DIAL IS TURNED. SDR HEEA075587Transponder · failedWENT DEAD. PERFORMED PRELIMINARY INSPECTION. FOUND CR106 DIODE BURNT AND C111 CAPACITOR SHORTED. ALSO FOUND C115 CAPACITOR BAD. REPLACED CR106 DIOD AND C111 AND C115 CAPACITORS. ADJUSTED MTL. UNIT BENCH CHECK GOOD.SDR KBMA88764Transponder · inoperativeTRANSPONDER REPORTED NO SIGNAL. REPLACED WITH 3V UNIT.SDR HEEA073795Transceiver · malfunctionedATC REPORTED NOT GETTING THE RIGHT NUMBER. PERFORMED PRELIMINARY INSPECTION AND FOUND INTERMITTENT DIAL, ALSO MTL OUT OF SPECIFICATIONS, SIGNAL CUTS OUT AT -64DB WHEN DYNAMIC RANGE IS SET TO -9DB, ADJUSTED IF SECTION AND PRESELECTOR, NO HELP. PROBLEM ON MAIN SDR HEEA073708Transceiver · failedCOULD NOT BE PICKED UP BY TOWER. SENDING TO VENDOR FOR REPAIR.SDR 2001F00132Transponder · failedTRANSPONDER FAIL LIGHT ILLUMINATED AFTER TAKEOFF, ATC WAS NOT RECEIVING TRANSPONDER SIGNAL. AIRCRAFT IS CONFIGURED WITH ONLY ONE TRANSPONDER AND RETURN FROM ARRIVAL DESTINATION WOULD NOT BE PERMISSIBLE. AIRCRAFT ADVISED TO RETURN TO DEPARTURE STATION. AIRCRSDR AUS20010557Transponder · faulty(AUS) TRANSPONDER GIVING FALSE ALTITUDE READINGS.SDR KBMA88737Transponder · inoperativeTRANSPONDER IS INOPERATIVE. REMOVED AND REPLACED WITH SERVICABLE PART.SDR DHL2001705514Antenna · delaminatedAT C-CHECK- NR 2 ATC ANTENNA DELAMINATED AND GASKET DETERIORATED. REMOVED NR 2 ATC ANTENNA AND ROUTED TO STOCK IAW B727 MM 34-43-41. INSTALLED NR 2 ATC ANTENNA AS PER B727 MM 34-43-41. OPS CHECK NR 2 ATC SYSTEM PER B727 MM 34-43-0. OPS CHECK GOOD.SDR HEEA072636Transponder · intermittentTRANSMITS INTERMITTENTLY. MTL LOW. CANNOT MEASURE FREQUENCY.SDR HEEA072635Transponder · failedWILL NOT COME ON.SDR HEEA072634Transponder · malfunctionedREPLY LIGHT INOPERATIVE.SDR HEEA072633Transponder · failedTRANSPONDER WILL NOT TRANSMIT. PERFORMED PRELIMINARY INSPECTION. FOUND UNIT NOT RECEIVING OR TRANSMITTING. FOUND V101 TUBE BAD. REPLACED V101 TUBE. REPAIRED. ALSO FOUND SWITCH PANEL BAD. REPLACED. BENCH CHECK GOOD.SDR HEEA072632Transceiver · defectiveKNOB DEFECTIVE. PERFORMED PRELIMINARY INSPECTION. REPLACED KNOB SHAFT. TRANSMIT POWER WEAK. INSTALLED V101 REPAIRED. FOUND UNIT MISSING IDENT BUTTON. INSTALLED BUTTON. ADJUSTED PULSE WIDTH. BENCH CHECK GOOD.SDR HEEA072616Control Unit · malfunctionedDISPLAY BLANKS OUT WHEN CHANGING DIGITS. PERFORMED PRELIMINARY INSPECTION AND REPLACED DISPLAY LENS AND I203, I204, I205 AND I206 IC CHIPS. NO HELP. FOUND J303 FLEX CABLE BAD. REPLACED J303 CABLE, I303 IC CHIP, I306 IC CHIP AND I202 IC CHIP. NO HELP.SDR HEEA072134Transceiver · malfunctionedNR F2. PULSE. LOW OUTPUT POWER. LOW RESPONSE. REPLACED WITH SERVICEABLE PART.SDR HEEA072079Transponder · malfunctionedLOW POWER AND WIDE PULSE WIDTH. PERFORMED PRELIMINARY INSPECTION AND FOUND F401 FUSE BLOWN AND Q415 BAD. REPLACED F401 FUSE AND Q415 TRANSISTOR. FOUND UNIT WILL NOT RECEIVE. REPLACED V101 CAVITY TUBE AND V301 PHOTOCELL. REPAIRED. BENCH CHECK GOOD.SDR HEEA072003Transponder · inoperativeREPORTED INOPERATIVE. PERFORMED PRELIMINARY INSPECTION. CLEANED EXCESSIVE CORROSION FROM UNIT. FOUND WEAK RECEIVER SENSE AND WEAK TRANSMIT POWER. REPLACED TRANSMITTER BOARD AND ALIGNED TO SPECS. ALIGNED THE RECEIVER. BENCH CHECK GOOD.SDR HEEA072002Transponder · failedNO OUTPUT. PERFORMED PRELIMINARY INSPECTION. FOUND MODULATOR WAS LOADING DOWN THE POWER SUPPLY VOLTAGES. REPLACED TWO EACH INSULATORS AND ONE EACH BUSHING FOR TRANSISTORS Q501 AND Q502. CLEANED CORROSION FROM BACKSIDE OF THE TRANSISTORS. REPAIRED.SDR HEEA071980Transponder · inoperativeNO TRANSMIT OR RECEIVE. PERFORMED PRELIMINARY INSPECTION, TESTED UNIT, FOUND WOULD NOT POWER UP. FUSE BAD. ALSO TROUBLESHOT UNIT DUE TO FUSE SHORTED AND FOUND TRANSISTOR Q101 BAD. INSTALLED FUSE AND TRANSISTOR Q101. TESTED UNIT AND FOUND SHIELD IN POWER SUSDR 01FDEA00220Transponder · malfunctionedAFT DEP LOST TRANSPONDER (1 & 2), NR 2 PITCH TRIM, NR 1 ATS, CAPT/STBY BY PROBE HEAT AND NR 2 PRESSURE CONTROLLER. ALSO ACARS DID NOT RECORD OFF OR ON TIMES CAPT SRS INOP. EVERYTHING APPEAR TO RESET UPON LANDING.SDR RAIA00103007Transponder · inoperative7163-STL-CREW REPORTS BOTH TRANSPONDERS INOPERATIVE. MAINTENANCE INSPECTED AND REPLACED TRANSPONDER CONTROL HEAD.SDR KBMA99402Transponder · inoperativeTRANSPONDER NON-OPERATIONAL.SDR HNAA0000083Control Unit · smokeWHEN GROUND POWER WAS APPLIED TO THE AIRCRAFT SMOKE AND SPARKS CAME FROM THE F/O'S SIDE OF THE CENTER CONSOLE. REPLACED THE NR 2 TRANSPONDER CONTROL HEAD.SDR SWIA972164Receiver · failedNUMBER ONE TRANSPONDER INOP WITH CORRESPONDING ''DIAG'' MESSAGE. NUMBER TWO TRANSPONDER INOP IN ALL POSITIONS WITH NUMBER ONE TRANSPONDER OFF OR ON. NO CORRESPONDING ''DIAG'' MESSAGE ON NUMBER TWO. RETURNED TO LAX. VERIFIED TRANSPONDER RECEIVER BAD USING T-4SDR R7MR312832540Transponder · inoperativeUNIT INOPERATIVE. WILL NOT RECEIVE OR TRANSMIT. REPLACED WITH NEW UNIT. CORRECTED PROBLEM.
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