JASC 3443

Service difficulty reports · 110

Reports filed under 3443 · Doppler 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 = '3443'
  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.

SDR CNMA20261007001Drive Unit · inoperativeWXR FAIL ON SYS L AND R STATUS MSG WXR SYSOct 5, 2026 · N819AX · Boeing 7772U8SDR IPXA2025031292106Knob · out of adjustCREW REPORTS THAT THE TILT KNOB POSITION DID NOT MATCH WITH THE INDICATION ON THE NAV DISPLAY. TILT KNOB ADJUSTED IAW AMM 34-43-02 PB401 REV.144. AND TESTED IAW AMM 34-43-00 PB501 REV.144. FOUND SATIS.Mar 12, 2025 · N393UP · Boeing 767316SDR AALA202401098436Antenna · faultyAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: FLIGHT DIRECTOR DISAPPEARED ON APPROACH AGAIN. AIRCRAFT DIVERTED AND LANDED SAFELY AT IAD WITHOUT FURTHER INCIDENT. FOUND FAULT MSG 22-11051. ACCOMPLISHED FIM 22-11-00. REMOVED AND REPLACED NUMBER 1 FORWJan 6, 2024 · N804NN · Boeing 737823SDR AALA202401096029Antenna · faultyAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: FLIGHT DIRECTOR DISAPPEARED ON APPROACH AGAIN. AIRCRAFT DIVERTED AND LANDED SAFELY AT IAD WITHOUT FURTHER INCIDENT. FOUND FAULT MSG 22-11051. ACCOMPLISHED FIM 22-11-00. REMOVED AND REPLACED NUMBER 1 FORWJan 6, 2024 · N804NN · Boeing 737823SDR AALA202401090549Antenna · faultyAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: FLIGHT DIRECTOR DISAPPEARED ON APPROACH AGAIN. AIRCRAFT DIVERTED AND LANDED SAFELY AT IAD WITHOUT FURTHER INCIDENT. FOUND FAULT MSG 22-11051. ACCOMPLISHED FIM 22-11-00. REMOVED AND REPLACED NUMBER 1 FORWJan 6, 2024 · N804NN · Boeing 737823SDR SIMA20230712001Unknown · unknownBOTH RA FAILED AFTER TAKE OFF CAUSING GEAR WARNING ALERT TO GO OFF @ 9000 FT MSL-C/A- RA2 OPERATIONAL CHECK AD'S/TEST REQUIEREDRA'2 AD'S/TEST PASSED PER E175 AMM 34-31-00Jul 12, 2023 · N232NN · Emb ERJ170200LRSDR CALA2022101802849Radar · faultyWEATHER RADAR SYSTEM INOP - NAV CTL PNL(3SQ)/WXR 1(1SQ1), 34-41-12.SEE TASK 34-41-00-810-812-A FOR TROUBLESHOOTING. CONTACT TOMC TO UNLOCK. UNLOCKED FOR UPDATE. SPOKE WITH RHE INBD CREW, THEY SAID AFTER HITTING A BUMP OVER OCEAN THEY GOT RED "WR CTL" MSG ON THOct 18, 2022 · N447UA · Airbus A320232SDR CALA2022101202776Windshear Sys · warning messageWX RADAR TEST GOOD. WINDSHEAR WARNING ALERT RECEIVED ON TO ROLL LOW SPEED EHRLICH, WILLIAM (V779414) OK TO PLACE WEATHER RADAR ON MEL 3415A CB B13 PULLED ON COLLARED DISPATCH DESK: 01 DATE: 09-OCT-22- NOC DATE: 09-OCT-22- DEFERRED DIRECTLY BY TOMC UPDATED MAA Oct 12, 2022 · N18220 · Boeing 737824SDR ASAA2022092440054Blower · failedWEATHER RADAR FAIL. GROUNDED - YES. REMOVED AND REPLACED WX RADAR RACK/RT BLOWER REF B737-800 AMM 34-43-51.Sep 24, 2022 · N560AS · Boeing 737890SDR CALA2022092302448None · noneWEATHER RADAR AND PWS FAILED. REPLACED WX RADAR TRANCEIVER IAW AMM34-41-41-400-801 AND WX RADAR PROCESSOR IAW AMM 34+41-42-400-801 AND PERFORMED WX RADAR OPS CHECK IAW AMM 34-41-00-710-801, OPS CHECKS GOOD. OKAY FOR SERVICE. ROTABLE PARTS CHANGE WAS INDICATEDSep 23, 2022 · N37528 · Boeing 737SDR ASAA2022091539979Radar · faulted10* GHOST RADAR RETURN IN ALL MODES/RANGES. - SEEMS TO STAY BETWEEN 100-110*. GROUNDED - YES. ACCOMPLISHED A WEATHER RADAR SYSTEM BITE REM B737-800 FIM 34-43/801. ALL TESTS NORMAL. ACCOMPLISHED A WEATHER RADAR OP-TESTS REF B737-800 AMM 34-43-00. ALL TESTS NORMSep 15, 2022 · N593AS · Boeing 737890SDR CALA2022091402345None · inoperativeCHRONIC TCAS INOP. PLEASE FOLLOW TSM 34-43-00-810-832A FOR TROUBLESHOOTING. NEED TO NOTE AHM REPORTS CFDIU NO COMMUNICATING WITH PROCESSOR SO SUSPECT BAD TCAS COMPUTER. IF FAULT CANNOT BE DUPLICATED REPLACE COMPUTER. THANKS LARRY THOMSON DENMM CARRIED BY ELB PSep 14, 2022 · N414UA · Airbus A300*SDR ASAA2022090939921Radar · intermittentRADAR FUNCTIONED INTERMITTENTLY, DISPLAYED WXR FAIL ON DEPARTURE. AFTER SEVERAL TEST CYCLES IT EVENTUALLY SEEMED TO FUNCTION ON ARRIVAL. GROUNDED - YES. B737-900 FIM 34-43 TASK 801 SYSTEM NORMAL. OPS CHECK WEATHER SYSTEM IN REFERENCE WITH B737-900 AMM 34-43-00Sep 9, 2022 · N467AS · Boeing 737990ERSDR ASAA2022090939920Transceiver · failedIN CRUISE WXR FAIL ILLUMINATED ON MAP DISPLAY, CYCLED RADAR AND WXR FAIL STAYED ILLUMINATED. GROUNDED - YES. REMOVED WXR R/T PER B737-900 AMM 34-43-41-000-801. INSTALLED WXR R/T PER B737-900 AMM 34-43-41-400-801.Sep 9, 2022 · N467AS · Boeing 737990ERSDR ASAA2022082939705Antenna · failedWEATHER RADAR FAILED. RECEIVED PWS FAIL, WXR FAIL AND ANT CAUTIOUS. AUDIBLE GRINDING AND VIBRATIONS DETECTED. GROUNDED - YES. REMOVED AND REPLACED WEATHER RADAR ANTENNA DRIVE UNIT PER B737-800 AMM REF 34-43-11-400-802. OPERATIONAL TEST SUCCESSFULLY ACCOMPLISHEAug 29, 2022 · N588AS · Boeing 737890SDR ASAA2022082839689Radar · warning messageWX RADAR INOP. RADAR DISPLAY INDICATED "PWS FAIL, WXR FAIL, AND 1"BOTH CA/FO DISPLAYED SAME, ALL MODES SELECTED INDICATED SAME FAILURES. WHEN SELECTED RADAR ON, HEARD AND FELT A SHUDDER. WX RADAR CIRCUIT BREAKER IN & NORMAL. GROUNDED - YES. PERFORMED WX RADAR Aug 28, 2022 · N588AS · Boeing 737890SDR CALA2022082602174None · nonePWS INOP AND WXR FAIL MESSAGE AFTER DEPARTURE MTC DIRECTED CB CY CLE. NO SUCCESS WXR BITE REF 34-43 TASK 821, HSI SHOWS WXR FAIL ANT AND RT FAULTS. OPENED RADOME AND FOUND ANTENNA HARNESS SATURATED WITH WATER AND DRIVE UNIT COVERED WITH WATER AND CONNECTOR SAAug 26, 2022 · N654UA · Boeing 767SDR CALA2022082402147Radar · failedWXR FAIL MESSAGE IN ALL MODES. WXR FAIL ANT MESSAGE IN TEST MODE . T/S PER FIM TASK 34-43-00/301. AND PERFORMED WXR RADAR BITE TEST CHECK GOOD. OK FOR SERVICE. OLD WXR RADAR HAS MULTIPLE ANT AZ PER FIM 34-43 FAULT TREE 817 WXR BITE. BITE TEST WAS GOOD. DUE CCWAug 24, 2022 · N654UA · Boeing 767322SDR ASAA2022082339621Display · faultyIN AUTO MODE CAPT AND FIRST OFFICER RADAR DISPLAYS SHOW DIFFERENT RETURNS, CAPTAIN SIDE SEEMS TO HAVE ISSUES WITH EITHER THE GAIN OR TILT. GROUNDED - YES. ACCOMPLISHED WEATHER RADAR SYSTEM BITE PROCEDURE, REF B737-900 FIM 34-43 TASK 801, OPS CHECK GOOD. NO FAUAug 23, 2022 · N461AS · Boeing 737990ERSDR ASAA2022082039571Control Panel · failedWX RADAR RIGHT SIDE THAT CONTROL KNOB HAS BECOME UNCALIBRATED. IN MANUAL MODE, WITH THE KNOB ON THE 15 DEGREES DOWN SETTING, THE FO'S RADAR DISPLAY/ SHOWS 1 DEGREE DOWN. GROUNDED - YES. REMOVED AND REPLACED WEATHER RADAR CONTROL PANEL IN REFERENCE WITH BOEING Aug 20, 2022 · N563AS · Boeing 737890SDR ASAA2022080539398Processor · faultyWX RADAR IS WEAK, STORM THAT WOULD NORMALLY DISPLAY AT 150 NM DONT DISPLAY UNTIL 60 NM, STORMS TOWERING TO 50,000' WITH CONFIRMED LIGHTNING DISPLAYS GREEN AND YELLOW INSTEAD OF RED. GROUNDED - YES. REPLACED NEW WXR PROCESSOR & INSTALLATION TEST NORMAL B737-9 AAug 5, 2022 · N926AK · Boeing 7379SDR ASAA2022080439395Radar · failedWXR STAB AND THEN WXR FAIL WHEN RADAR SELECTED. GROUNDED - YES. PERFORMED WXR BITE REF B737-800 FIM 34-43 TASK 801 FOUND WXR FAIL WXR STAB MESSAGES DISPLAYED PERFORMED POWER CYCLE OF A/C. NO HELP. RERACKED WXR RT REF AMM 34-43-41. ALL OP CHECK GOOD. ALL MESSAGAug 4, 2022 · N564AS · Boeing 737890SDR CALA2022080101927Transceiver · failedBOTH SIDES WX RADAR FAILED IN FLIGHT TESTED BOTH RADAR SYSTEMS, SYSTEM TEST. LEFT SYSTEM TESTED NORMALLY, BUT SELECTING MODE WX+T CAUSED RADAR TO SPOKE. REPLACED LEFT RADAR TRANSCIEVER AND RETESTED VIA SYSTEM TEST, LEFT RADAR TESTS GOOD.Aug 1, 2022 · N77066 · Boeing 767424ERSDR CALA2022072701885Radar · inoperativeWEATHER RADAR SYSTEM INOP - NAV RED WR ANT DISPLAYED AND ECAM PRED WS INOP UPDATED MAA CODE FIX USING VENDOR MAA SCREEN MAC METER INITIATED FOR WITH VENDOR ID V933475 PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. RESET THE MAC RELATED WORK ORDER 0000000Jul 27, 2022 · N457UA · Airbus A320232SDR ASAA2022070938996Control Panel · faultyWX RADAR AUTO MODE DOES NOT WORK PROPERLY ON CA SIDE. GROUNDED - YES. PERFORMED OPS CHECK REF B737-800 AMM 34-43-00-710-802-001 OPS CHECK NORMAL UNABLE TO DUPLICATE ON GROUND. REPLACED WXR CNTRL PANEL PRECAUTIONARY AND INSTALLATION TEST NML REF AMM 34-43-91/40Jul 9, 2022 · N534AS · Boeing 737890SDR CALA2022062901609Transceiver · inoperativeWX RADAR FAILED IN FLIGHT REMOVED AND REPLACED WX TRANSCIEVER REF AMM34-43-41-000-801 & AMM34-43-41-400-801. ACCOMPLISHED SYSTEM OPERATION TEST REF AMM34-43-00-710-802-002. ALL TESTS PASSED WITH NO FAULTS. ADD EMP:032979 ROTABLE PARTS CHANGE WAS INDICATED - TJun 29, 2022 · N13750 · Boeing 737724SDR P5CA2022062500145Drive Unit · inoperativeWX RADAR INOP(REMOVED& AND REPLACED WXR ANTENNA DRIVE UNIT PER AMM 34-43-03 / 401. THEN WEATHER RADAR SYSTEM OPERATIONAL. TEST OK PER AMM 34-43-00-710-804-002. NO EXISTING FAULT FOUND, A/C OK FOR SVC.)Jun 25, 2022 · N714SA · Boeing 777FZBSDR QXEA2022062300230Tcas System · inoperativeTCAS FAIL IN CRUISE ( TRAFFIC ALERT AND COLLISION AVOIDANCE SYSTEM II (TCAS II) ). REMOVED FROM SERVICE. PERFORMED FIM TASK 34-43-00-810-801-A. TCAS FAIL MESSAGE EXTINGUISHED. CLEARS MEL. AIRCRAFT RETURNED TO SERVICE.Jun 22, 2022 · N627QX · Emb ERJ170200LRSDR CALA2022061501511Transceiver · failedWX RADAR FAILED IN ROUTE RESET PER MCC FAILED FAILS RT. DURING OP TEST...REPLACED WX TRANSCIEVER PER AMM 34-43-41. OP TEST AMM 34-43-00 TEST OK RET AC TO SERVICE. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1072263 SN OFF 8630 CORRECTION TRACKING NUMBER IS 1072Jun 15, 2022 · N16701 · Boeing 737724SDR UIEA2022053000558Drive Assy · failedBOTH L & R WEATHER RADARS FAILED AT CRUISE. REMOVED AND REPLACED WEATHER RADAR DRIVE MOUNT ASSEMBLY.May 30, 2022 · N418MC · Boeing 74747UFSDR ABXA20220519None · noneRADAR WOULD NOT TEST ON TAXI OUT. AIRCRAFT BTB AND GROUNDED BY MAINTENANCE. MAINTENANCE PERFORMED RADAR GROUND TEST, TEST NORMAL IAW B767 AMM 34-43-00. AIRCRAFT REMAINS ETOPS 180 OPERATIONAL. AIRCRAFT RETURNED TO SERVICE.May 19, 2022 · N317CM · Boeing 767SDR ASAA2022051738358Control Panel · degradedWEATHER RADAR IN AUTO MODE AT FL350 CONTINUALLY PAINTS GROUND CLUTTER. WHEN TAKEN OUT OF AUTO AND TILTED GROUND CLUTTER CAN BE REMOVED. GROUNDED - YES. DUE TO GROUND CLUTTER NOT BEING SUPPRESSED IN AUTO MODE, REMOVED & REPLACED WXR CONTROL PANEL REF B737-900 AMay 17, 2022 · N467AS · Boeing 737990ERSDR ASAA2022051638352Radar · failedPWS FAIL AND WXR FAIL INDICATED ON F/O ND. GROUNDED - YES. ACCOMPLISHED A/C POWER RESET PER B737-800 AMM 20-60-01. ACCOMPLISHED WXR OPS TEST PER AMM 34-43-00. OPS CHECKS NORMAL.May 16, 2022 · N579AS · Boeing 737890SDR ASAA2022051538342Drive Unit · failedPWS, WXR FAIL IN WXR MODE ENROUTE. GROUNDED - YES. VERIFIED IN WXR TEST MODE -"PWS FAIL, WXR FAIL- ANT. SHOWS. IN WXR MODE - "WXR FAIL SHOWS". REF B737-900 AMM 34-43-11, REMOVED/REPLACED WXR ANTENNA DRIVE UNIT. OPS NML REF SAME AMM 34-43-00 OPERATIONAL TEST.May 15, 2022 · N467AS · Boeing 737990ERSDR ASAA2022051238308Radar · intermittentWX RADAR AFTER SWITCHING TO MANUAL AND BACK TO AUTO REMAINED STUCK IN MANUAL ON FO SIDE. RETURNS WERE ALSO VERY INACCURATE UNTIL VERY CLOSE TO PRECIP. GROUNDED - YES. PERFORMED MULTIPLE GOOD OPS TESTS ON GROUND PER B737-900 AMM 34-43-00-710-802-001. PERFORMED May 12, 2022 · N402AS · Boeing 737990ERSDR ASAA2022050438198Radar · faultedWEATHER RADAR WILL NOT TURN ON; ONLY SHOWS TEST PATTERN. GROUNDED - YES. INITIAL EVALUATION, PERFORMED WXR BITE IAW B737-900 FIM 34-43 TASK 801. NO FAULTS. ALL OBSERVATIONS NORMAL. PERFORMED SYSTEM TEST IAW B737-900 AMM 34-43-00-730-802-001. TEST PASS. ALL FUNMay 4, 2022 · N479AS · Boeing 737990ERSDR ASAA2022050338199Control Panel · failedRADAR AUTO BUTTON FAILS INTERMITTENTLY. GROUNDED - YES. REMOVED AND REPLACED WXR CONTROL PANEL REF B737-900 AMM 34-43-91. ALL FUNCTIONS OPS GOOD.May 3, 2022 · N474AS · Boeing 737990ERSDR SIMA20220501003None · unserviceableGPWS COMPUTER BURNING EGPWS CARDS-C/A-RAR GPWS COMPUTER IAW EMB AMM 34-41-01-000-802-A AND 34-41-01-400-802-A. OPC GOOD. END.May 1, 2022 · N918AE · Emb EMB145LRSDR ASAA2022042938173Radar · inoperativeWXR FAIL ANT IN FLIGHT, RADAR INOP. GROUNDED - YES. PERFORMED WXR BITE TEST, TEST OK. REF B737-900 FIM 34-43 TEST 801.Apr 29, 2022 · N467AS · Boeing 737990ERSDR I5PA2022032575702Wave Guide · damagedWEATHER RADAR INOP. FURTHER INSPECTIONS FOUND A DAMAGED FLEXIBLE WAVEGUIDE WHICH WAS REPLACED AND CONFIRMED OPERATIONAL DURING THE WEATHER RADAR OPS CHECK PER THE APPLICABLE AMM.Mar 25, 2022 · N757QM · Boeing 75729JSDR CALA2022011800169Switch · defectiveUNCOMMANDED WX RADAR TEST ON TAKEOFF TWICE FOUND WEATHER RADAR CONTROL PANEL TEST SWITCH STICKING IN THE TEST POSITION. REQUIRES NEW PANEL M&E 29-3443-9-0008. NIS IN EWR. R/R WEATHER RADAR CONTROL PANEL I.A.W AMM REF# 34-43-91. PERFORMED INSTALLATION TEST GOODJan 17, 2022 · N68801 · Boeing 737900SDR CALA2021122002413Radar · warning messagePWS WARNING AS TO THRUST WAS APPLIED UPDATED MAA CODE FIX USING VENDOR MAA SCREEN PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. PERFORMED FIM 34-43 TASK 815 FOR PREDICTIVE WINDSHEAR, NO FAULTS SPEED REJECTED TAKE OFF LESS THAN 60 KTS. REALIGNED ADIRU''S FOUDec 20, 2021 · N15710 · Boeing 737724SDR CALA2021121302358Control Panel · inoperativeWX RADAR FAIL/INTERMIT MENT LOCKED UNLOCKED COULD NOT DUP, CREW INDICATED THAT THEY HAD WXR FAIL / CNTL STAB FAULT AT TIME OF FAILURE THEN FAULT CLEARED ENROUTE, REPLACED WXR CNTL PANEL PRECAUTIONARY REF AMM 34-43-91... ROTABLE PARTS CHANGE WAS INDICATED - TT Dec 12, 2021 · N38443 · Boeing 737900ERSDR UIEA2021111502418None · noneLEFT WXR FAIL ILLUMINATED ON EHSI(<P>TRANSFERRED TO DMI # 156673 PER MEL 34-43-01 CAT D DUE DATE 12 MAR 22.</P> / <P>13NOV21 - LP 1476572 - ITEM #5 - ONT - PERF OPERATIONAL TEST WXR RADAR, L TRANSCEIVER FAILED. PER AMM 34-43-01 R/R L RADAR TRANSCEIVER PER AMMNov 12, 2021 · N1229A · Boeing 767306SDR UIEA2021111202401None · noneWX RADAR FAULT WHEN TAXIING TO RUNWAY.(<P>PERFORMED OPS TEST OF WX RADAR SYSTEM IAW AMM 34-43-00. OPS CHECK GOOD.</P>)Nov 12, 2021 · N649GT · Boeing 767375SDR UIEA2021111102398None · noneLEFT WEATHER SYSTEM FAIL.(<P>C/W OPS CHECK OF WXR SYSTEM OPS CHECK GOOD IAW AMM 34-43-00.</P>)Nov 11, 2021 · N1229A · Boeing 767306SDR UIEA2021111002387None · noneDURING CLIMB WXR FAIL ON EHSI. WEATHER RADAR INOP(<P><SPAN>PERFORMED FIM TASK 34-43 FAULT TREE 805. NO FAULTS FOUND.</SPAN></P>)Nov 9, 2021 · N1361A · Boeing 76731BSDR CALA2021102901998Transceiver · inoperativeWX RADAR WILL NOT TEST. NO DISPLAY ON ND. AMBER WXR TEST REMAINS DISPLAYED WITH WXR ON PLACED WX RADAR ON MEL DISPATCH DESK: 1 NAME: RD DATE: 26-OCT-21- NOC DESK: 7367 NAME: RK DATE: 26-OCT-21- DEFERRED DIRECTLY BY TOct 28, 2021 · N14735 · Boeing 737724SDR UIEA2021102402277None · noneLEFT WEATHER RADAR FAILED WXR FAIL MSG ON EICAS(<P>PERFORMED WEATHER RADAR SYSTEM OPERATIONAL TEST IAW B767 AMM 34-43-00 715-026-002. OPS CKS NORMAL AT THIS TIME. COULD NOT DUPLICATE ON GROUND.</P>)Oct 23, 2021 · N1487A · Boeing 76731KSDR 2022F00088Webbing · misalignedDURING INSTALLATION OF THE DOPPLER MODULE ONE OF THE MOUNTING HOLES WAS MIS-LOCATED DAMAGING THE WEB STRUCTURE AT RBL 15 AND STA 168.5. THE HOLE IS OUT OF ROUND AND MEASURES .22" IN LENGTH MAX. REPAIR WAS ACCOMPLISHED PER UR REPAIR PROCEDURE R00701 REV IR. Oct 13, 2021 · N742AM · Bell 407
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