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 HEEA954922Transceiver · wont testWILL NOT TEST. REPLACED DS301 REPLY LAMP BULB. ALIGNED PRESELECTOR, ADJUSTED PULSE AND FREQUENCY. BENCH CHECK GOOD.SDR HEEA954921Transceiver · wont testTRANSPONDER WILL NOT TEST. ADJUSTED FREQUENCY. UNIT BENCH CHECK GOOD.SDR HEEA954920Transceiver · inoperativeINOPERATIVE. FOUND REPLY LIGHT TO BE DIM. REPLACED PHOTOCELL V301. REPAIRED. REPLACED DETERIORATED RESISTOR R477. FOUND INTERMITTENT PULSES ON OSCILLOSCOPE WHEN DIALING THROUGH FREQUENCIES. CLEANED CONTACTS ON ALL WAFERS. REPAIRED. BENCH CHECK GOOD.SDR HEEA954919Transceiver · inoperativeTOTALLY INOPERATIVE. REPLACED TRANSISTOR Q415. REPAIRED PROBLEM. BENCH CHECK GOOD.SDR HEEA954918Transceiver · inoperativeINOPERATIVE. NO OUTPUT. REPLACED WEAK V101 CAVITY OSCILLATOR AND INOPERATIVE. V301 PHOTODETECTOR. INSTALLED Q415 HEAT SINK ACCORDING TO KT76A MOD 6. ADJUSTED AS NEEDED. BENCH CHECK GOOD.SDR C2XA95CL081Transponder · inopFLT NR 3183 - CLE-SYR - MODE C- INOP BOTH NR 1 AND NR 2 TRANSPONDERS. MAINTENANCE REMOVED AND REPLACED NR 1 TRANSPONDER RECEIVER/TRANSMITTER. OPS CHECKED NR 1 AND NR 2 GOOD. RETURNED TO SERVICE. (W)SDR HEEA954757Transceiver · wont testWILL NOT SELF-TEST. FOUND IDENT LIGHT VERY DIM. REPLACED PHOTOCELL V301. REPAIRED. REPLACED DETERIORATED RESISTOR R477. INSTALLED HEAT SINK BEHIND TRANSISTOR Q415 AS PER SERVICE BULLETIN KT76A-6. UNIT HAD WEAK POWER OUT. REPLACED CAVITY TUBE V101. REPAIRSDR HEEA954653Transceiver · defectiveKNOB WILL NOT TURN TO TEST. VERIFIED. REPLACED FACEPLATE ASSEMBLY DUE TO KNOB BROKEN. INSTALLED HEATSINK DUE TO SERVICE BULLETIN KT76A-6. REPLACED CAVITY OSCILLATOR V101 DUE TO WEAK POWER. REPLACED V301 PHOTOCELL DUE TO BEING WEAK. REPLACED DETERIORATED RSDR HEEA954652Transceiver · malfunctionWHEN SET ON 60.33, TRANSPONDER PUTS OUT FREQUENCY 1200. FOUND WEAK POWER OUT. REPLACED CAVITY OSCILLATOR V101. REPAIRED. REPLACED DAMAGED TRANSISTOR Q415 AND INSTALLED HEATSINK BEHIND Q415 AS PER KING SERVICE AID KT76A-6. REPLACED DETERIORATED RESISTOR R47SDR HEEA954612Transponder · inoperativeTRANSPONDER WAS NOT WORKING. AIRCRAFT RETURNED TO BASE.SDR HEEA954604Transceiver · inoperativeNO OUTPUT; WILL NOT REPLY TO INTERROGATIONS FROM ATC600 OR GROUND CONTROL. VERIFIED UNIT TO HAVE WEAK POWER AND OFF FREQUENCY. REPLACED CAVITY OSCILLATOR V101. REPAIRED. UNIT HAS WEAK RECEIVER SENSE. REPLACED MIXER DIODE CR202. REPAIRED. ALIGNED RECEIVERSDR HEEA954603Transceiver · defectiveREPLY LIGHT INOPERATIVE. REPLACED DETERIORATED RESISTOR R477. REPLACED TRANSISTOR Q415 AND INSTALLED HEATSINK BEHIND Q415. REPLACED FACEPLATE AND WEAK PHOTOCELL V301. REPLACED CAVITY OSCILLATOR V101. REPAIRED. ADJUSTED PULSE WIDTH AND FREQUENCY. CLEANEDSDR HEEA954602Transceiver · defectiveBENCH CHECK REQUIRED. REPLACED DETERIORATED RESISTOR R477. INSTALLED HEATSINK BEHIND TRANSISTOR Q415 AS PER KING SERVICE BULLETIN KT76A-6. REPLACED WEAK PHOTOCELL V301. ADJUSTED POWER OUT AND FREQUENCY TO MEET SPECS. BENCH CHECK GOOD.SDR HEEA954455Transceiver · inoperativeDOES NOT TURN ON. REPLACED INOPERATIVE Q415 TRANSISTOR, INOPERATIVE V101 CAVITY OSCILLATOR, AND DETERIORATED R477 RESISTOR. RETURNED TO SERVICE.SDR HEEA954454Transceiver · failedNO OUTPUT. ADJUSTED FREQUENCY, REPLACED DETERIORATED RESISTOR R477 AND INOPERATIVE V301. RETURNED TO SERVICE.SDR HEEA954453Transceiver · inoperativeATC DOES NOT RECEIVE IN AIRCRAFT. REPLACED DEFECTIVE V101 CAVITY OSCILLATOR, BURNT RESISTOR R441, AND DETERIORATED RESISTOR R477, ADJUSTED FREQUENCY AND RETURNED AIRCRAFT TO SERVICE.SDR HEEA954452Transceiver · defectiveIDENT LIGHT IS OUT. ATC REPORTED GOOD SIGNAL FROM TRANSPONDER. REPLACED V301 PHOTODETECTOR , DETERIORATED RESISTOR R477...RETURNED TO SERVICE.SDR HEEA954451Transceiver · inoperativeINOPERATIVE. REPLACED DEFECTIVE CAVITY OSCILLATOR V101 AND BROKEN COIL L101, ADJUSTED FREQUENCY AND RETURNED TO SERVICE.SDR HEEA954450Transceiver · inoperativeINOPERATIVE. REPLACED BURNT F401 FUSE, INSTALLED Q415 HEAT SINK. REPAIRED CONNECTION AT LOCAL OSCILLATOR. RETURNED TO SERVICE.SDR 96ZZZX4784Transponder · burnedPILOT LANDED AIRCRAFT AFTER DETECTING BURNING SMELL. AFTER INVESTIGATING PROBLEM, TRANSPONDER WAS REPLACED BY RADIO SHOP (POWER SUPPLY IN TRANSPONDER HAD BURNED CAUSING SMELL).SDR HEEA954320Transceiver · defectiveREPLY LIGHT WILL NOT COME ON; INTERMITTENT. REPLACED PHOTOCELL V301. REPAIRED.SDR HEEA954319Transceiver · defectiveNO ACTIVITY FROM LIGHT AND LIGHT OPERATIONAL. NO ACTIVITY WHEN LANDING LIGHT CYCLED. FOUND UNIT INOPERATIVE. REPLACED OPEN TRANSISTOR Q415. REPAIRED. ALSO REPLACED CRACKED FACEPLATE, BAD PHOTOCELL V301, DETERIORATED RESISTOR R477 AND PUT HEATSINK BEHIND Q4SDR HEEA954289Transceiver · defectiveIDENT AND REPLY LIGHT WEAK. REPLACED V301 PHOTOCELL THAT WAS INOPERATIVE. ALSO REPLACED WEAK CAVITY OSCILLATOR V101, DETERIORATED RESISTOR R477 AND INSTALLED Q415 HEAT SINK. BENCH CHECK GOOD.SDR 95ZZZX382Transponder · coax shortedTRANSPONDER INTERMITTENT. COULD NOT DUPLICATE DISCREPANCY. REMOVED TRANSPONDER FROM A/C AND BENCH CHECKED UNIT. NO DISCREPANCY NOTED. CHECKED A/C WIRING, FOUND INTERMITTENT SHORT IN COAX. REMOVED AND REPLACED TRANSPONDER COAX. THREE WEEKS LATER, A/C RETU
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