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 AUS20030878Control Panel · faulty(AUS) ATC TRANSPONDER CONTROL PANEL FAULTY. PANEL WAS FOUND TO BE EXCESSIVELY HOT TO TOUCH.SDR GLBA2003122Controller · failedTRANSPONDER CONTROL WENT BLANK. REMOVED TRANSPONDER CONTROL P/N 622-9352-003, RE-SEATED IT, OPS CHECK GOOD.SDR HEEA088519Transponder · intermittentTRANSPONDER SENDING SIGNAL INTERMITTENTLY. IN SHOP REPAIR.SDR 2003F00528Control Head · burnedFLT 9158 - NAS - AFTER TAKEOFF, SMOKE IN COCKPIT FROM TRANSPONDER FACE PANEL. RETURNED TO NAS. LANDED WITHOUT INCIDENT. FOUND TRANSPONDER CONTROL HEAD BURNED INTERNALLY. REMOVED AND REPLACED CONTROL HEAD. NO DEFECTS NOTED. (M)SDR HEEA087827Transponder · failedATC TRANSPONDER FAILS; LOW POWER. REPLACED WITH SERVICEABLE PART.SDR HEEA086664Transponder · intermittentATC TRANSPONDER FOUND FAULTY. INTERMITTENT OPERTION. CONTROL HEAD WILL DISPLAY "FAIL". IN SHOP REPAIR.SDR HEEA086595Display · malfunctionedDISPLAY TOO DIM TO READ DURING DAYLIGHT. REPLACED V101 PHOTOCELL, DISPLAY LENS. REPAIRED. BENCH CHECK GOOD.SDR HEEA086594Control Unit · intermittentDISPLAY IS INTERMITTENT. SCRAPPED UNIT.SDR MEX2003119Transponder · failedCAPTAIN REPORTED ATC TRANSPONDER OUT OFF SERVICE. WITH ATC TRANSPONDER FAILURE WAS REQUESTD TO FAA ATCA TO OPERATE IAW MEL34-22 (AUTHORIZATION NR ZFWZM04052003). DURING OVERNIGHT SERVICE BOTH ATC TRANSPONDERS, LOWER ANTENNA AND TRANSFERENCE RELAY WERE REPLACSDR HEEA085002Antenna · corrodedANTENNA HAS CORROSION AND TRANSPONDER REPORTED WEAK BY ATC. SCRAPPED.SDR HEEA084979Transponder · malfunctionedATC TRANSPONDER HAS LOW POWER OUT. SCRAPPED.SDR HEEA084880Transponder · malfunctionedNOT REPORTING ALTITUDE. REPLACED V101 CAVITY OSCILLATOR, ADJUSTED TO SPECS, REPAIRED. BENCH CHECK GOOD.SDR HEEA084646Transponder · inoperativeTRANSPONDER INOPERATIVE. FOUND HEADER P305, TRANSISTOR Q206, DISPLAY DS103 AND PHOTOCELL V101 BAD. ALSO FOUND CARBON UNDER P305 BETWEEN PINS 12 AND 13. REPLACED HEADER, TRANSISTOR, DISPLAY AND PHOTOCELL AND REMOVED CARBON. REPAIRED. BENCH CHECK GOOD.SDR HEEA084641Transponder · inoperativeTRANSPONDER WILL NOT COME ON. LOWER CHASSIS CORRODED. CLEANED CORROSION FROM UNIT. REPLACED Q104, Q501, Q502 TRANSISTORS, REPLACED 3 EACH WASHERS AND 3 EACH INSULATORS. BENCH CHECK GOOD.SDR HEEA084640Transponder · inoperativeTRANSPONDER INOPERATIVE. CLEANED CORROSION FROM UNIT. REPLACED THE INSULATORS AND SPACER ON Q501 TRANSISTOR WHICH WERE DETERIORATED. FOUND MTL AND FREQUENCY OUT OF SPECS. ADJUSTED. BENCH CHECK GOOD.SDR HEEA084639Transponder · weakTRANSPONDER WEAK AND INTERMITTENT REPORTING. SENT TO HONEYWELL, IN. FOR INSPECTION AND REPAIR.SDR HEEA084638Transponder · intermittentTRANSPONDER OUTPUT IS INTERMITTENT. FOUND CORROSION ON Q104, Q501 AND Q502 (ALL TRANSISTORS) AND CHASSIS. CLEANED CORROSION, REPAIRED. BENCH CHECK GOOD.SDR HEEA084637Transponder · erraticTRANSPONDER OUTPUT IS ERRATIC ON TEST SET (DIGITS). CLEANED EXCESSIVE CORROSION FROM UNIT. MTL2 TRANSMIT POWER WEAK. ALIGNED RECEIVER AND TRANSMITTER. BENCH CHECK GOOD.SDR HEEA084636Transponder · malfunctionedTRANSPONDER CAUSES TCAS TO DISPLAY ITSELF (NO SUPPRESSION PULSE). CLEANED CORROSION FROM UNIT. REPLACED WASHER AND 3 INSULATORS. BENCH CHECK GOOD.SDR HEEA084474Transponder · failedATC TRANSPONDER HAS NO POWER OUT. IN SHOP FOR REPAIR.SDR HEEA084432Transponder · failedTRANSPONDER WILL NOT REPLY TO INTERROGATIONS. SHOP REPAIR.SDR HEEA084431Transponder · malfunctionedWHEN GOING FROM ON THE ALTIMETER UNIT SHUTS OFF. REPLACED SWITCH ASSY. REPAIRED. ALSO REPLACED RESISTOR R477, FACEPLATE. ADJUSTED FREQUENCY. BENCH CHECK GOOD.SDR XNOA01101Transponder · malfunctionedNR 2 TRANSPONDER REPORTED 7700, 0400, 1410, WITH NO REPORTING. ITEM TRANSFER TO DMI CONTROL 3055 IAW ENA MEL 34-53-02. CAT PLACARDS INSTALLED.SDR HEEA084006Transponder · failedDOES NOT GENERATE SIGNAL. REPLACED BAD F401 FUSE, BAD V101 CAVITY AND BAD R477 RESISTOR. REPAIRED PROBLEM. ADJUSTED PULSE WIDTH AND FREQUENCY. FOUND DYNAMIC RANGE BAD. ALIGNED PRESELECTOR AND IF SECTION. REPAIRED PROBLEM. ALSO REPLACED FACEPLATE AND V301SDR HEEA083611Transponder · damagedTRANSPONDER KNOB BROKEN. FOUND FACEPLATE ASSY AND CATHODE PULSE OSCILLATOR V101 BAD. REPLACED. BENCH CHECK GOOD.SDR HEEA083572Transceiver · failedFIRST TWO DIGITS ARE INCORRECT. FOUND UNIT ONLY HAD ABOUT 8 WATTS OUT AND MTL WEAK. COULD NOT ADJUST POWER OUT. REPLACED BAD V101 CAVITY, BAD L101 COIL, BAD R477 RESISTOR AND BAD PHOTOCELL. FOUND POWER OUT NOW GOOD AND MTL STILL WEAK. ALIGNED PRE SELECTOR SDR HEEA083475Transponder · inoperativeATC TRANSPONDER WOULD NOT PRODUCE POWER OUT. IN SHOP REPAIR.SDR HEEA083474Transponder · erraticATC TRANSMITS ERRATIC AND INTERROGATION PULSES WILL NOT NULL OUT. IN SHOP REPAIR.SDR HEEA083087Transponder · inoperativeATC TRANSPONDER INOPERATIVE.SDR HEEA083086Transponder · malfunctionedATC TRANSPONDER CODE TRANSMITTED NOT DISPLAYED.SDR HEEA083085Transponder · inoperativeATC TRANSPONDER NOT TRANSMITTING. FOUND PHOTOCELL V301 BAD, PHOTOCELL LENS MISSING AND CODE SWITCHES NOISY. REPLACED PHOTOCELL V301, LENS AND CLEANED CODE SWITCHES. REPAIRED. BENCH CHECK GOOD.SDR HEEA083084Transponder · inoperativeATC TRANSPONER HAS NO OUTPUT. CLEANED SLIGHT CORROSION. FOUND WEAK TRANSMIT POWER AND COULD NOT ADJUST PULSE WIDTH. REPLACED CAVITY OSCILLATOR AND R472, ADJUSTED FREQUENCY AND POWER. BENCH CHECK GOOD.SDR HEEA083083Transponder · inoperativeATC TRANSPONDER INOPERATIVE. REPLACED Q415 TRANSISTOR, R477 RESISTOR AND V101 CAVITY OSCILLATOR. REPAIRED. ADJUSTED FREQUENCY AND PULSE WIDTH. CLEANED CODE SELECTORS. BENCH CHECK GOOD.SDR HEEA082409Transponder · corrodedTRANSPONER HAS NO POWER OUT. CLEANED EXCESSIVE CORROSION. REPLACED Q501/Q502 TRANSISTORS, 2 EACH INSULATORS AND 3 EACH WASHERS. ALIGNED RECEIVER TO SPECS. TRANSMIT POWER VERY WEAK. FOUND PROBLEM ON TRANSMITTER BOARD. SENT IN FOR INSPECTION AND REPAIR.SDR HEEA082394Transponder · inoperativeINTERMITTENT MODE "C" OPERATION. CLEANED CORROSION FROM UNIT. FOUND WEAK MTL AND TRANSMIT POWER. TROUBLESHOT AND REPLACED V201 CAVITY OSCILLATOR AND CATHODE ASSY, ADJUSTED FREQUENCY AND POWER TO SPECS. ALSO FOUND DYNAMIC RANGE OUT OF SPECS. ALIGNED AND ADJSDR HEEA082578Control Unit · malfunctionedATC TRANSPONDER DISPLAY IS UNREADABLE. FOUND IC I303 BAD, REPLACED, REPAIRED. CLEANED FACEPLATE. BENCH CHECK GOOD.SDR S02234040Transponder · failedBOTH ATC TRANSPONDER FAILED LIGHT ILLUM. BEFORE T/O. ATC CONTROL PANEL REPLACED NR 2 ATC NML IAW 34-53-00 T/S BUT NR 1 ATC STILL NO GOOD IAW MEL 34-26 SAFE FOR FLIGHT,ITEM C/F TO D/D PAGE D0045481 CAT "C". THE ATC FRONT PANEL TEST SWITCH LOST THE BITE TEST SDR 2002FA0001208Transistor · unapproved partTRANSPONDER FAILURE: IDENT PULSE PRESENT AND REPLY LAMP LIT WHEN UNIT HOT. (NOT COMMANDED) FOUND Q22 AND ASSORTED CIRCUIT VERY TEMPERATURE SENSITIVE. REPLACED COMPONENTS AND FOUND Q22 NOT STANDARD PART. PART INSTALLED AN ECG TPE 123. PART REPLACED WITH ASDR QXEA0201656Antenna · corrodedPDX - LIGHT SURFACE CORROSION ON FUSELAGE BELOW ATC ANTENNA. REPAIRED IAW DHC-8 SRM 51-20-16. AND SRM 51-20-11.SDR SABA020098TransponderFlight 5025 Aircraft 882 from CLT to TLH; After takeoff and during climb out , Pilot reported that he had lost number one and two transponders. No emergency was declared. Aircraft returned to CLT and landed with no other problems. Maintenance removed and replaSDR 000192Transponder · inoperativeCREW REPORTS BOTH TRANSPONDERS INOP ON WAY TO YYZ. ALSO HAS FLAP LOW SPEED MSG.SDR SWIA200211200Control Head · malfunctionedAFTER TAKEOFF, ATC REPORTS NO TRANSPONDER REPORTING. TRIED BOTH ONE AND TWO TRANSPONDERS, NEITHER WORKED. RETURNED TO LAX. REPLACED TRANSPONDER CONTROL HEAD. TESTED WITH TEST BOX. OPS CHECKS GOOD.SDR HEEA080418Transponder · malfunctionedINTERROGATES ON THE EDGE IN MODE "A" AND OUT OF RANGE IN "C" MODE. FOUND FREQUENCY AND POWER AND VIDEO ALIGNMENT OUT OF SPECS. ALIGNED AND ADJUSTED ANODE AND CATHODE ASSY AND V101 CAVITY OSCILLATOR TO SPECS. ALIGNED VIDEO BOARD AND BENCH CHECK GOOD.SDR HEEA080417Transponder · inoperativeATC REPORTS INTERMITTENT OPERATION AND UNRELIABLE ALTITUDE READOUT. REPLACED CATHODE ASSY AND PERFORMED VIDEO BOARD ALIGNMENT. BENCH CHECK GOOD.SDR HEEA080416Transponder · malfunctionedATC TRANSPONDER TRANSMITS OFF FREQUENCY AND OUT OF LIMITS.SDR C2XA02CL135Transponder · inoperativeCLE FLIGHT 3040 THE CREW REPORTED THE NR 1 AND NR 2 TRANSPONDERS WERE INOPERATIVE IN CRUISE ABOUT HALF AN HOUR OUT OF CLEVELAND. THEY ALSO REPORTED THE NR 2 COMM FAILED. THE AIRCRAFT RETURNED TO CLEVELAND AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE INSSDR HEEA079931Transceiver · malfunctionedTRANSCEIVER SQUAWK WAY OFF.SDR HEEA079930Resistor · deterioratedDISPLAYS ERRONEOUS CODES. CLEAN SWITCH BOARD ASSY, REPAIRED, REPLACED R477 RESISTOR WHICH WAS DETERIORATED. ADJUSTED FREQUENCY, POWER AND PULSE WIDTH. BENCH CHECK GOOD.SDR HEEA079929Transceiver · intermittentMODE "C" INTERMITTENT AND TWO DIGITS OFF. FOUND KNOB BROKEN. REPLACED FACEPLATE ASSY, REPAIRED. BENCH CHECK GOOD.SDR R7MR333635206Transponder · erraticTRANSPONDER INOPERATIVE, GIVES ERRATIC READINGS. REPLACED WITH NEW UNITS, CORRECTED PROBLEM.
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