JASC 3455
Service difficulty reports · 164
Reports filed under 3455 · Automatic Direction Finder (ADF) 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 = '3455' 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 = '3455' 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 DHL9780703CAntenna · delaminatedAT C CHECK, LEFT LOWER ADF SENSE ANTENNA NR 162S DELAMINATED. REMOVED AND REPLACED ANTENNA PER MM 34-30-0.SDR HEEA0010339Control · defectiveADF CONTROL DISPLAY DIM. PERFORMED PRELIMINARY INSPECTION. FOUND V301 PHOTOCELL BAD. ALSO FOUND SWITCH S305 BAD. REPLACED V301 PHOTOCELL, AND S305 SWITCH. REPAIRED. ALSO REPLACED BROKEN PHOTOCELL LENS P/N 088-0548-00. REPAIRED. BENCH CHECK GOOD.SDR 97ZZZX2573Antenna · brokenBENDIX ADF ANTENNA DAMAGE TO LEADING EDGE SURFACE (APPROXIMATELY 20 PERCENT). SUBMITTER SUGGESTS POSSIBLE CAUSE, TAKEOFF AND LANDINGS ON UNIMPROVED LANDING STRIPS.SDR HAIHEEA9824Receiver · failedRECEIVER WILL NOT RECEIVE MORE THAN -5DB.SDR HAIHEEA9721Receiver · inoperativeADF INOPERATIVE NO SIGNAL. SENT TO THE RADIO SHOP FOR INSPECTION AND REPAIR.SDR HAIHEEA9409Control · intermittentADF CONTROL LED INTERMITTENT.SDR HAIHEEA9362Receiver · defectiveADF AUDIO SCRATCHY ON ALL FREQUENCIES.SDR 97ZZZX3574Antenna · faultyADF WILL NOT TRACK RMI NEEDLE.SDR CA970327002Antenna · failed(CAN) #1 ADF FAILED AND ON NEXT FLIGHT BOTH ADF'S FAILED. ADF ANTENNA FOUND FAULTY.SDR HEEA979175Receiver · failedRECEIVER INOPERATIVE AUDIO; DOES NOT HOLD MEMORY.SDR HEEA979096Receiver · corrodedADF RECEIVER FRONT CONNECTOR CORRODED. PERFORMED PRELIMINARY INSPECTION AND REPLACED CORRODED FRONT CONNECTOR J8061 AND CLEANED CORROSION ON MAIN BOARD. CLEANED CORROSION AND BENCH CHECK GOOD.SDR HEEA979030Control · malfunctionADF CONTROL TOO DIM. PERFORMED PRELIMINARY INSPECTION AND FOUND V301 PHOTOCELL NOT DIMMING AND S301 SWITCH INTERMITTENT. REPLACED V301 AND S301. REPAIRED. BENCH CHECK GOOD.SDR 97ZZZX3567Control · failedADF CONTROL HEAD WOULD NOT POWER UP.SDR 9701222717Receiver · malfunctionedDURING CRUISE, THE NR 1 ADF NEEDLE STAYED AT THE 3 O'CLOCK POSITION AND WOULD NOT TEST. AIRCRAFT DIVERTED TO TPA AND LANDED WITHOUT INCIDENT. REPLACED NR 1 ADF RECEIVER, OPERATIONAL CHECK OK.SDR HEEA968746Receiver · malfunctionADF WON'T POINT TO STATION.SDR HEEA968508Receiver · intermittentRECEIVER INTERMITTENT. PERFORMED PRELIMINARY INSPECTION. FOUND EXCESSIVE CORROSION ON CONN. J8061, REPLACED CONN. J8061. ONE EACH SPACER AND ONE EACH PLATE. ALSO REPLACED MISSING SCREW. REPAIRED, TESTED, ADJUSTED POT. R374 AND CLEANED HEADERS. BENCH CHECKSDR 97ZZZX1618Control Head · shortedDURING COCKPIT PREFLIGHT, CREW HEARD ADF NR 1 CIRCUIT BREAKER TRIP. WITHIN A FEW MOMENTS, THE ODOR OF SOMETHING BURNING WAS DETECTED. REMOVING THE ADF HEAD, THE UNIT SMELLED BURNT. THIS SAME S/N HEAD EXPERIENCED THE SAME THING A YEAR AND A HALF AGO, (545 FLSDR HEEA968450Receiver · inoperativeADF INOPERATIVE, NO RECEPTION, NO POINTING TO STATIONS.SDR HEEA968447Receiver · defectiveSTATIC ON LOW WATT STATIONS AND RECEIVER SCRATCHY.SDR HEEA968446Receiver · failedRECEIVER WILL NOT RECEIVE STATIONS.SDR HEEA968430Receiver · defectiveADF NEEDLE POINTS 30 DEGREES OR MORE OFF FROM WHERE IT SHOULD.SDR HEEA968429Receiver · failedADF NEEDLES STUCK ON PILOT & COPILOT SIDES AND "ANT" MODE VERY WEAK.SDR HEEA968413Control · light inopLIGHTING INOPERATIVE. PERFORMED PRELIMINARY INSPECTION. FOUND 28V BULB DS301 BURNT, REPLACED DS301 BULB. REPAIRED. ALSO REPLACED V301 PHOTOCELL P/N 134-05005-0002. REPAIRED. CHECKED LIGHTING. BENCH CHECK GOOD.SDR HEEA968369Receiver · inoperativeRECEIVER INTERMITTENLY INOPERATIVE. PERFORMED PRELIMINARY INSPECTION. REPLACED I.C.'S I323, I324, CAPACITOR C380, DIODE CR315 AND RESISTOR R424. REPLACED CORRODED FRONT CONNECTOR J8061 AND BROKEN SPACER PLATE. BENCH CHECK GOOD.SDR DHL96721007Antenna Cable · openNR 1 ADF WEAK AND WANDERS. REPLACED NR 1 ADF LOOP ANTENNA CABLE ASSY AND NR 1 ADF SENSE ANTENNA CABLE PIGTAIL BETWEEN NR 1 ADF RECEIVER AND STANCHION, OPS CHECK NORMAL REF MM 34-37-0.SDR DHL96721006Adf · broken wireNR 1 ADF INOP. FOUND BROKEN SHIELD ON PIGTAIL CONNECTOR FOR SENSE ANTENNA AT RECEIVER. REPAIRED AS REQUIRED, OPS CHECK GOOD IAW MM 34-37-0.SDR HEEA968185Receiver · intermittentINTERMITTENT AUDIO SIGNAL. PERFORMED PRELIMINARY INSPECTION AND FOUND CORROSION AND BURN SPOT ON MAIN BOARD. CLEANED CORROSION AND SCRAPED CARBON OUT AND CLEANED MAIN BOARD. REPLACED CORRODED INTEGRATED CIRCUITS I323 AND I324, ALSO CORRODED CAPACITOR C380. SDR HEEA968180Control · intermittentINTERMITTENT AND HALF OF DISPLAY NOT USUABLE. PERFORMED PRELIMINARY INSPECTION, FOUND PHOTOCELL (V301) DIMMING. REPLACED PHOTOCELL (V301), ALSO FOUND LIGHTING INOPERATIVE. REPLACED 28V BULB. REPAIRED. BENCH CHECK GOOD.SDR HEEA968097Receiver · malfunctionCUTS IN AND OUT FREQUENCY AND CHANGES FREQUENTLY TO 808. WHEN UNIT IS VIBRATED, AUDIO CUTS OUT. FOUND VCO COVER BENT IN AND TAPPING ON COVER CUTS AUDIO OUT. REMOVED COVER AND STRAIGHTENED OUT. REPAIRED. VIBRATED AND COULD NOT GET AUDIO OUT AGAIN. FOUND BFSDR CA961009002Connector · wrong part(CAN) UNAPPROVED BNC CONNECTOR USED TO CONNECT SENSE ANTENNA COAX TO REAR OF ADF TRAY. BNC CONNECTOR ALSO MODIFIED TO ADAPT TO COAX DIAMETER.SDR HEEA967729Receiver · malfunctionRECEIVER INOPERATIVE. WEAK RECEIVE IN ANTENNA MODE.SDR HEEA967615Receiver · failed2182 TO 2189 FREQUENCY NOT IN SPECS IN "ANT" MODE. (NO NEEDLE DEFLECTION)SDR HEEA967430Receiver · failedDOES NOT WORK. REPLACED HEADERS J302, J306, J307 AND APPLIED HUMISEAL TO HEADERS FOR CORROSION CONTROL. REPLACED CRACKED RESISTOR R339 AND CRACKED SPACER FOR BNC. REPLACED BROKEN HEX NUT ON POWER SUPPLY AND INSTALLED MISSING WASHER, NUT AND SPACER. TESTED.BSDR HEEA967109Receiver · inoperativeADF IS INOPERATIVE.SDR HEEA967046Receiver · failedADF DOESN'T WORK.SDR HEEA967043Receiver · failedADF DOES NOT RECEIVE.SDR HEEA966924Control · defectiveSELECTOR KNOB ROTATES 350 DEGREES. REPLACED SELECTOR KNOB P/N 073-0548-05. REPAIRED. TESTED UNIT AND CHECKED LIGHTING. BENCH CHECK GOOD.SDR HEEA966910Receiver · failedADF DOES NOT RECEIVE. INSPECTED AND TESTED. FOUND POINTER ON INDICATOR TO GO OUT 10 DEGREES TO 15 DEGREES. REMOVED RECEIVER BOARD AND SWAPPED WITH ANOTHER RECEIVER BOARD TO GET ANOTHER UNIT OUT. PROBLEM IS ON MAIN BOARD. CURRENT RECEIVER BOARD DOES NOT RECSDR HEEA966470Receiver · defectiveBENCH CHECK NEEDED. INSPECTED AND TESTED. FOUND HOLE STRIPPED IN HEATSINK. REPLACED HEATSINK. REPAIRED. REPLACED DISPLAY DUE TO INOPERATIVE SEGMENTS. REPAIRED. APPLIED DOW CORNING #4 COMPOUND TO DISPLAY. BENCH CHECK GOOD.SDR HEEA966361Receiver · defectiveWILL NOT POINT CORRECTLY IN TEST MODE AND CANNOT ADJUST VOLUME. SENT TO THE RADIO SHOP FOR INSPECTION AND REPAIR.SDR HEEA956193Control · defectiveCONTROL DOES NOT INDICATE SWITCHING FROM BFO, TO ADF, TO ANT.SDR HEEA956186Receiver · defectiveBANDS IN HIGHER FREQUENCY INOPERATIVE. SENT TO THE RADIO SHOP FOR INSPECTION AND REPAIR.SDR HEEA956175Receiver · corrodedFRONT CONNECTOR CORRODED.SDR HEEA956166Receiver · inoperativeADF INOPERATIVE. SENT TO THE RADIO SHOP FOR INSPECTION AND REPAIR.SDR HEEA956148Receiver · weakWEAK RECEPTION. SENT TO THE RADIO SHOP FOR INSPECTION AND REPAIR.SDR HEEA956128Control · defectiveSOME NUMBERS ARE NOT LIGHTING UP AS REPORTED BY PILOT. REPLACED DEFECTIVE IC205 INTEGRATED CIRCUIT. REPAIRED AND UNIT BENCH CHECK GOOD.SDR HEEA956111Receiver · failedNO AUDIO-NO NEEDLE POINT.SDR HEEA956109Receiver · defectiveRECEPTION GARBLED.SDR HEEA955997Receiver · defectiveLOUD AND SCRATCHY RECEPTION. PERFORMED HEADER MODIFICATION BY REPLACING HEADERS J301, J302, J306, AND J307. APPLIED HUMISEAL TO HEADERS. ALSO FOUND 200 KHZ TO POINT DIFFERENTLY.SDR HEEA955996Receiver · failedDOES NOT RECEIVE.
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