JASC 3433

Service difficulty reports · 26

Reports filed under 3433 · Microwave Landing 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 = '3433'
  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 AALA202505159407Transceiver · faultedAIRCRAFT WAS GROUNDED: AT 10.000FT RED LANDING GEAR WARNING LIGHTS AND HORN CAME UP. **SUPPLEMENTAL REPORT FOR (AALA202505149407): REMOVE AND REPLACED RADIO ALTIMETER TRANSCEIVER (AALA202505149407), PER AMM 34-33-21. REMOVE AND REPLACED ALL 4 RADIO ANTENNAS (AMay 13, 2025 · N933AN · Boeing 737823SDR AALA202505156359Antenna · faultyAIRCRAFT WAS GROUNDED: AT 10.000FT RED LANDING GEAR WARNING LIGHTS AND HORN CAME UP. **SUPPLEMENTAL REPORT FOR (AALA202505149407): REMOVE AND REPLACED RADIO ALTIMETER TRANSCEIVER (AALA202505149407), PER AMM 34-33-21. REMOVE AND REPLACED ALL 4 RADIO ANTENNAS (AMay 13, 2025 · N933AN · Boeing 737823SDR AALA202505154554Antenna · faultyAIRCRAFT WAS GROUNDED: AT 10.000FT RED LANDING GEAR WARNING LIGHTS AND HORN CAME UP. **SUPPLEMENTAL REPORT FOR (AALA202505149407): REMOVE AND REPLACED RADIO ALTIMETER TRANSCEIVER (AALA202505149407), PER AMM 34-33-21. REMOVE AND REPLACED ALL 4 RADIO ANTENNAS (AMay 13, 2025 · N933AN · Boeing 737823SDR AALA202505150214Antenna · faultyAIRCRAFT WAS GROUNDED: AT 10.000FT RED LANDING GEAR WARNING LIGHTS AND HORN CAME UP. **SUPPLEMENTAL REPORT FOR (AALA202505149407): REMOVE AND REPLACED RADIO ALTIMETER TRANSCEIVER (AALA202505149407), PER AMM 34-33-21. REMOVE AND REPLACED ALL 4 RADIO ANTENNAS (AMay 13, 2025 · N933AN · Boeing 737823SDR AALA202505154106Antenna · faultyAIRCRAFT WAS GROUNDED: AT 10.000FT RED LANDING GEAR WARNING LIGHTS AND HORN CAME UP. REMOVE AND REPLACED RADIO ALTIMETER TRANSCEIVER (AALA202505149407), PER AMM 34-33-21. REMOVE AND REPLACED ALL 4 RADIO ANTENNAS (AALA202505156359, AALA202505154554, AALA202505May 13, 2025 · N933AN · Boeing 737823SDR SWAA2025050768358Receiver · faultedSPOILERS LIGHT ILLUMINATED ON APPROACH AFTER SELECTING FLAPS 30.<[01] R&R #1 & #2 LRRA R/T PER AMM 34-33-21<BR><BR>AIRCRAFT RECTIFIED TO CAT III STATUS PER 834-PDR-01-01 VERIFICATION# 47585May 6, 2025 · N8943Q · Boeing 7378SDR SWAA2025050768375Receiver · faultedSPOILERS LIGHT ILLUMINATED ON APPROACH AFTER SELECTING FLAPS 30.<[01] R&R #1 & #2 LRRA R/T PER AMM 34-33-21<BR><BR>AIRCRAFT RECTIFIED TO CAT III STATUS PER 834-PDR-01-01 VERIFICATION# 47585May 6, 2025 · N8943Q · Boeing 7378SDR AALA202504087941Altimeter · false indicationAIRCRAFT WAS GROUNDED: LANDING GEAR WARNING HORN AND GEAR UNSAFE LIGHTS ILLUMINATED MULTIPLE TIMES DURING DESCENT. REPLACED NUMBER 2 RADIO ALTIMETER.Apr 7, 2025 · N300UB · Boeing 7378SDR AALA202504081451Antenna · undertorquedAIRCRAFT WAS GROUNDED: GEAR WARNING HORN AND RED LIGHTS ON INTERMITTENTLY ON DESCENT FROM FL230 TO ABOUT 15000. PERFORMED BITE TEST ON BOTH LRRA TRANSCEIVERS, PER AMM 34-33-00 BITE TEST PASS. FOUND ALL SCREWS ON ALL 4 LRRA ANTENNAS LESS THAN 30 INCH LBS. HALF Apr 6, 2025 · N300UB · Boeing 7378SDR AALA202410044170Transmitter · inoperativeAIRCRAFT WAS GROUNDED: SELECTED APPROACH MODE FOR THE ILS 25L AT LAX. LOC STARTED TO CAPTURE WHEN WE LOST BOTH FLIGHT DIRECTORS AND AUTO THROTTLES. AS WELL AT AUTO PILOT. COMMAND A SELECTED. TRIED THE APPROACH AGAIN WITH THE SAME RESULT. DIVERTED TO ONT FOR A Oct 2, 2024 · N806NN · Boeing 737823SDR AALA202402226510Antenna · faultyAIRCRAFT WAS NOT GROUNDED: AN EMERGENCY WAS DECLARED AND LANDED SAFELY AT LAX DUE TO: DURING CAPTURE OF ILS, LEFT SIDE FLIGHT DIRECTOR FAILED AND LOST GUIDANCE CUES, ON SUBSEQUENT APPROACH IT FAILED AGAIN. REMOVED AND REPLACED (LRRA) LOW RANGE RADIO ALTIMETER Feb 20, 2024 · N897NN · Boeing 737823SDR ASAA2021080435621Autoland Sys · faultedATTEMPTED AUTOLAND & HGS AIII, DEVELOPED A HIGH SINK RATE AND DID NOT FLARE. THEN APP/WARN IN THE HUD. DISCONNECTED A/P A/T AND LANDED MANUALLY. GROUNDED - YES. CHECKED FOUND HGS APCH WARN FOR LEG 6 AIRSPEED EXCEEDANCE. HGS SYSTEM TEST PASSED REF HGS 4000 SSM Aug 4, 2021 · N587AS · Boeing 737890SDR UIEA2021042801014Transceiver · intermittentFO RA INTERMITTENT (NO LAND 3) REMOVED AND REPLACED RT RA XCEIVER, OPS CK OK. THIS CLEARS MDDR 146046.</P><P><SPAN></SPAN></P>)Apr 28, 2021 · N649GT · Boeing 767300SDR AALA201909059004Transceiver · unreliableAIRCRAFT WAS GROUNDED: PILOT REPORTS DESCENDING THROUGH 8000 (LVL CHG, POWER IDLE). ALL RED LIGHTS ON GEAR INDICATORS AND WARNING HORN ON. FLAPS 5 AIRSPEED 210 KIAS. MAINTENANCE REPLACED #1 & #2 R/A R/TS IAW AMM 34-33-21. REPLACED ALL R/A ANTENNA IAW AMM 34-33Sep 2, 2019 · N816NN · Boeing 737823SDR AALA201909059016Transceiver · unreliableAIRCRAFT WAS GROUNDED: PILOT REPORTS DESCENDING THROUGH 8000 (LVL CHG, POWER IDLE). ALL RED LIGHTS ON GEAR INDICATORS AND WARNING HORN ON. FLAPS 5 AIRSPEED 210 KIAS. MAINTENANCE REPLACED #1 & #2 R/A R/TS IAW AMM 34-33-21. REPLACED ALL R/A ANTENNA IAW AMM 34-33Sep 2, 2019 · N816NN · Boeing 737823SDR AALA201909059017Antenna · unreliableAIRCRAFT WAS GROUNDED: PILOT REPORTS DESCENDING THROUGH 8000 (LVL CHG, POWER IDLE). ALL RED LIGHTS ON GEAR INDICATORS AND WARNING HORN ON. FLAPS 5 AIRSPEED 210 KIAS. MAINTENANCE REPLACED #1 & #2 R/A R/TS IAW AMM 34-33-21. REPLACED ALL R/A ANTENNAS IAW AMM 34-3Sep 2, 2019 · N816NN · Boeing 737823SDR AALA201908319010Antenna · faultyAIRCRAFT WAS GROUNDED: PILOT REPORTS ON FINAL APPROACH WITH COUPLED ILS IN COMMAND B , CAPTAINS FO BARS DISAPPEARED AND BOTH FD MASTER LIGHTS CAME ON. MAINTENANCE TROUBLESHOT IAW FIM TASK 22-11-00-810-801; FOUND MULTIPLE INSTANCES OF FAULT CODE 22-11051, NO RAAug 29, 2019 · N877NN · Boeing 737823SDR AALA2019060429002Radio Altimeter · malfunctionedAIRCRAFT NOT GROUNDED: PILOT REPORTS ON APPROACH 1800 RADIO ALTITUDE FLAPS 20 THROTTLES IDLE , GOT CONFIG WARNING, MASTER CAUTION GEAR NOT DOWN MSG EXTENDED GEAR, FLAPS 25 ALL WARNINGS STOPPED WITH THROTTLES NOT AT IDLE 1800 RA FLAPS 20. MAINTENANCE ACCOMPLJun 1, 2019 · N194AA · Boeing 757223SDR FDEA201902150416Autoland Sys · malfunctionedPDIS 968 22-20 4737 14FEB19 TLV FACT U LOGPAGES:3011346 3011350 REPEAT EVENT: IN VNAV PATH @ 350, DECENDING TO 210, ACT WENT FROM VNAV PATH TO VNAV SPEED AND PITCHED DOWN AGRESSIVLEY TO 10 DEG NOSE LOW AND OVER 7000FPM DESCENT. DURING DESCENFeb 15, 2019 · N968FD · Boeing 75728ASDR ASAA2018042624418Autoland Sys · malfunctionedAUTOLAND NOT SUCCESSFUL, AIRCRAFT LANDED 50FT LEFT OF CENTERLINE. ACFT GROUNDED. ACCOMPLISHED FIM 22-11 TASK 825. PERFORMED LAND VERIFY TEST IAW AMM 22-11-00. ALL TESTS PASSED. NO FAULTS FOUND. ACCOMPLISHED AUTOPILOT CURRENT STATUS IAW AMM 22-11-00-740-801Apr 26, 2018 · N486AS · Boeing 737990ERSDR ASAA2018041724281Autoland Sys · malfunctionedWHILE ACCOMPLISHING AUTOLAND, LAND VERIFY TEST, FOUND A FAILURE OF THE ELEVATOR PRESSURE SWITCH 1. ACFT GROUNDED. PERFORMED LLM TESTS OF AUTOLAND, 30 DAY IN USE IAW AMM 22-00-01-730-809 AND LLM TESTS FOR HGS 30 DAY IN USE IAW AMM 22-00-010730-810. NO FAULTApr 17, 2018 · N577AS · Boeing 737890SDR AALA201712089032Antenna · faultyAIRCRAFT WAS GROUNDED: AFTER TAKEOFF AT 1000 FEET UNABLE TO ENGAGE NAVIGATION AUTO THROTTLE STAYED IN TOGA AT 5000 FT WHEN THROTTLES RETARD, LANDING GEAR WARNING HORN ON STEADY. HORN STAYED ON UNTIL GEAR WAS EXTENDED. LANDING WAS BELOW MAX LANDING. WEIGHT CONTDec 4, 2017 · N901NN · Boeing 737823SDR AALA20171204014Antenna · faultyAIRCRAFT WAS GROUNDED: AFTER TAKEOFF AT 1000 FEET UNABLE TO ENGAGE NAVIGATION AUTO THROTTLE STAYED IN TOGA AT 5000 FT WHEN THROTTLES RETARD, LANDING GEAR WARNING HORN ON STEADY. HORN STAYED ON UNTIL GEAR WAS EXTENDED. LANDING WAS BELOW MAX LANDING. WEIGHT CONTDec 4, 2017 · N901NN · Boeing 737823SDR UALA2010100403661Transceiver · faultyA-T DISCONNECTED. NO LAND, 3 IND EICAS MSG AND STATUS MSGS. PERFORMED LT & RT F AUTO THROTTLE SERVO LOOP GROUND TEST , CONDITION NORMAL. PRESENT LEG FAULTS SHOWED RADIO ALT MSG 22-11920, 22-11940. CONCURED WITH S FOLM THAT ISSUE IS WITH LT & RT RADIO ALT AND NOct 3, 2010 · N206UA · Boeing 777222SDR P5CA0300961Autoland Sys · malfunctionedLOUD SIDE TONE IN F/O INTERPHONE. RERACKED NR 2 LRRA - TRANSCEIVER IAW MM 34-42-00, OPS CHECK OK. NOISE DISAPPEARED.Oct 7, 2003 · N924FT · Boeing 747236BSDR CA961118014Couplers · failed(CAN) BOTH CAPTAINS AND FIRST OFFICERS INSTRUMENT LANDING SYSTEM INOPERATIVE. ANTENNA COUPLERS REPLACED.Nov 11, 1996 · Cndair CL6002B19
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