N468AS

Service difficulty reports · 262

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. 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 n_number = 'N468AS' AND registry_match = 'registration'
  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 ASAA2018122417517Warning Light · false activationFAIL ANNUNCIATION IS DISPLAYED ON HF #1 IN TUNING WINDOW. GROUNDED - YES. PERFORMED BITE TEST OF THE HF#1 SYSTEM. NO FAULTS. PERFORMED OPERATION TEST OF THE HF SYSTEM IAW B737-900 AMM 23-11-00. GROUND VERIFICATION TEST IS GOOD.Dec 21, 2018 · N468AS · Boeing 737990ER · HF Communications SystemSDR ASAA2018121127439Warning System · false activationWHILE ACCOMPLISHING T/C 78273000 FOUND ENGINE NR 1 LONG TIME FAULT MSG 76-31361 THE START LEVER SIGNALS DISAGREE. GROUNDED - YES. ON DEFERRAL. ACCOMPLISHED FIM 76-11 TASK 801 START LEVERS DISAGREE. THE MAINTENANCE MESSAGE DID NOT SHOW ON FMC CDU. PERFORMED TESDec 11, 2018 · N468AS · Boeing 737990ER · Power LeverSDR ASAA2018120927274Fseu · failedDURING CLIMB THROUGH FL320 NR 1 LE TRANSIT LIGHT ILLUMINATED. GROUNDED - YES. FOUND FSEU INTERNAL FAIL. PERFORMED ALTERNATE DEACTIVATION IAW CHAP 5 TABLE 3 ITEM 1. REMOVED FSEU IAW AMM 27-51-01-000-801. REPLACED FSEU IAW AMM 27-51-01-400-801. OPS CHECKS GOOD. Dec 9, 2018 · N468AS · Boeing 737990ER · Trailing Flap Position Indicating SystemSDR ASAA2018112827124Anti-Ice Valve · failedDUE TO RECENT HISTORY OF NR 2 ENG COWL ANTI-ICE VALVE OPEN LIGHT REMAINING ON, ENGINEERING REQUESTS REPLACEMENT OF NR 2 ENG COWL THERMAL ANTI-ICE VALVE TO PREVENT DELAYS. GROUNDED - YES. REMOVED AND REPLACED NR 2 ENG COWL TAI VALVE IAW AMM 30-21-11. OPS CK ANDNov 28, 2018 · N468AS · Boeing 737990ER · Air Intake Anti/De-Ice SystemSDR ASAA2018112227071Fmc · malfunctionedAFTER LANDING DURING TAXI OFF RUNWAY, DUAL FMC FAILURE, VTK DISPLAYED ON BOTH CAPTAIN AND FO'S MAP DISPLAY. GROUNDED - YES. ACCOMPLISHED FIM 34-61 TASK 837. BOTH FMC'S LOGGED PGM FAULT ON GROUND. NO HARDWARE FAULTS.Nov 22, 2018 · N468AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2018101526468Sensor · faultyAT GATE ENG SHUTDOWN APU OPERATING ELECT & AIR, APU OVERSPEED LITE ILUM, APU SHUTDOWN. GROUNDED - YES. CK'D SPEED SENSOR YAAT007. CONNECTOR P12 IN GOOD CONDITION. SENSOR RES AT PIN 1+2 WAS 16 OHMS AND 3+4 WAS 26 OHMS. REMOVED AND REPLACED SPEED SENSOR YAAT007 Oct 13, 2018 · N468AS · Boeing 737990ER · APU ControlsSDR ASAA2018101526463Anti-Ice Valve · inoperativeTURNED ON ENG ANTI-ICE OFF. NR 2 COWL VALVE OPEN LIGHT REMAINED BRIGHT. TAI AMBER LIGHT ILLUMINATED ABOVE NR 2 N1 GAGE. GROUNDED - YES. REMOVED AND REPLACED THE NR 2 ENGINE THERMAL ANTI-IVE VALVE IAW AMM 30-21-11. OPS CHECKS GOOD.Oct 13, 2018 · N468AS · Boeing 737990ER · Air Intake Anti/De-Ice SystemSDR ASAA2018101226433Fcu · faultyAPU OVERSPEED LT AND AUTO SHUTDOWN ON TAXI IN. GROUNDED - YES. PERFORMED APU BITE TEST FOUND FAULT APU OVERSPEED MSG 49-31014. APU REMAINS ON MEL 49-1B. PERFORMED FIM 49-30 TASK 802. PER FIM TASK, REMOVED AND REPLACED THE FUEL CONTROL UNIT REF AMM 49-31-11. PEOct 8, 2018 · N468AS · Boeing 737990ER · APU Engine Fuel and ControlSDR ASAA2018101026435Unknown · malfunctionedAPU OVERSPEED LT ILLUMINATED DURING APU START APU FAILED TO START LT WENT OUT AFTER 5 MINUTES. GROUNDED - YES. STARTED APU, NO DEFECTS NOTED. NO HISTORY WITHIN 30 DAYS. BITE APU. FAULT CODE 49-31014. A/C OK FOR SERVICE.Oct 8, 2018 · N468AS · Boeing 737990ER · APU ControlsSDR ASAA2018092866295Fault Message · false activationFAIL DISPLAYED ON BOTH FREQUENCY INDICATORS FOR HF 1. GROUNDED - YES. BITE TESTED #1 AND #2 HF REF B737-900 FIM 23-11-00-810-801. TESTS OK. TESTED HF SYS REF 28-11-00-810-806. TESTS OK. FREQUENCY SELECTION NORMAL.Sep 26, 2018 · N468AS · Boeing 737990ER · HF Communications SystemSDR ASAA2018092426262Satcom · malfunctionedSAT SELECTION MISSING FROM MCD MENU PAGE. GROUNDED - YES. PULLED AND RESET SATCOM C/B IAW QRH. SATCOM RESTORED.Sep 24, 2018 · N468AS · Boeing 737990ER · HF Communications SystemSDR ASAA2018092426217Cdu · malfunctionedFO FMS CDU INOP. GROUNDED - YES. REBOOTED FO'S FMC CDU REF FIM 34-61 TASK 804 OPENED & CLOSED 2 C/B'S P6-1, NORM OPS RESTORED, BITE CK OK.Sep 20, 2018 · N468AS · Boeing 737990ER · Central DisplaySDR ASAA2018090425975Controller · failedAFTER ENGINE START AUTO FAIL AND ALTN LIGHTS ILLUMINATED ON PRESSURIZATION PANEL. GROUNDED - YES. REMOVED & REPLACED NR 1 CPC. OPS CK GOOD. REF AMM 21-31-01.Sep 1, 2018 · N468AS · Boeing 737990ER · Cabin Pressure ControllerSDR ASAA2018081325750Hmu · failedNR 2 ENGINE, ENG VALVE CLOSED LIGHT REMAINED ILLUMINATED DURING ENGINE START, RESULTING IN NO START. ACFT GROUNDED. THE NR 2 EEC LOGGED 73-31552 FAULT. ATTEMPTED THREE ENGINE STARTS AND FAILED ALL 3. IGNITORS IN BOTH POSITION DISCREETS ON THE INPUT MONITOAug 9, 2018 · N468AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2018081095724Autoland Sys · malfunctionedAUTOLAND UNSUCCESSFUL. BOTH AUTOPILOTS ENGAGED W/ FLARE ARMED. NO NOSE UP TRIMMING OCCURRED. APP WARN AND NO AIII AT 100 FT RA. GROUNDED - YES. ACCOMPLISHED MAINTENANCE PRACTICE FOR LLM SPECIAL CONDITION AUTOLAND REF AMM 22-00-01-730-807 & HGS LANDING REF AMM Aug 9, 2018 · N468AS · Boeing 737990ER · Autopilot SystemSDR ASAA2018081075714Fseu · faultedAT 4000 FT AN LE FLAP TRANSIT LIGHT INTERMITTENT AND OVERHEAD NR 2 SLAT TRANSIT LIGHT ILLUMINATED ON OVERHEAD PANEL. FIRST OFFICER'S PFD SPEED TAPE DISPLAYED AMBER, BAR SPEED LIMITS DUE TO THE LE FLAP TRANSIT LIGHT AND OVERHEAD NR 2 SLAT AMBER TRANSIT LIGHT.Aug 7, 2018 · N468AS · Boeing 737990ER · Leading Edge Slat Control SystemSDR ASAA2018080635655Warning Light · false activationDURING CRUISE, FL 360, IN CONT TURB, AUTO FAIL LIGHT ILLUMINATED ON PRESSURE CONTROL PANEL. QRH APPLIED, ALTERNATE OPS NORMAL. ACFT GROUNDED. PERFORMED FIM 21-31, TASK 827/824, DCPC NR 1 BITE, NO FAULTS. DCPC NR 2 SHOWS FAULT CODE 057, CONTROL LRU FAIL Aug 3, 2018 · N468AS · Boeing 737990ER · Cabin Pressure Control SystemSDR ASAA2018072125526Warning System · false activationWHILE ACCOMPLISHING TASK CARD 78273000, NR 1 ENGINE FAULT CODE 76-31361 DISCOVERED. "THE START LEVEL SIGNALS DISAGREE". LONG TIME FAULT. GROUNDED - YES. ACCOMPLISHED T/C 78273000 "INTERROGATE FMC CDU FOR ENGINE NR 1 FAULTS". RECENT FAULT SHOWS NO FAULTS. FAULTJul 21, 2018 · N468AS · Boeing 737990ER · Engine ControlsSDR ASAA2018072325486Blade · vibrationNR 1 ENG IN CLIMB N1 AT 101.2 VIB AT 2.2. NR 1 ENG IN CRUSE N1 AT 90.5 VIB AT 1.4. GROUNDED - YES. DUE TO SUSPECT MOMENT WEIGHT DISPARITY, REMOVED & REPLACED 5 EA NR 1 ENGINE FAN BLADE PAIRS IN CONJUNCTION WITH TASK CARD 78472002. FAN BLADES INSTALLED IN SEQUEJul 19, 2018 · N468AS · Boeing 737990ER · Turbine Engine Compressor SectionSDR ASAA2018071625413Warning System · false activationREF TC 78273000, ENGINE 1 SHOWS LONG TERM FAULT 76-31361. THE START SIGNAL LEVERS DISAGREE. GROUNDED - YES. PERFORMED T/C 78273000, NO RECENT FAULTS OR FAULT HISTORY. PERFORMED SUCCESSFUL REPAIR CONFIRMATION OF FIM 76-11 TASK 801.Jul 12, 2018 · N468AS · Boeing 737990ER · Power LeverSDR ASAA2018071125370Not Reported · malfunctionedAFTER LANDING OBSERVED BOTH CDU'S ON MENU PAGE WITH THE FOLLOWING MESSAGE PROMPTS AVAILABLE: ACARS, ACMS, SAT. FMC WAS NOT AVAILABLE ON EITHER CDU. AS WE APPROACHED THE GATE, THE "FMC" PROMPT REAPPEARED AND NORMAL OPERATION RESUMED. GROUNDED - YES. LEFT FMC PRJul 11, 2018 · N468AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2018061194997Heating Element · malfunctionedAT THE GATE, THE LEFT FWD WINDOW OVERHEAT LIGHT ILLUMINATED. FOLLOW QRH CHECKLIST AND LIGHT REILLUMINATED AFTER WAITING 3 MINUTES. ACFT GROUNDED. FRONT LEFT WINDOW HEAT CONTROLLER SHOWS SENSOR FAULT. SELECTED SENSOR SWITCH TO SPARE ALSO SHOWS SENSOR FAULT.Jun 9, 2018 · N468AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2018052524776Coffeemaker · odorFA IN FWD GALLEY REPORTED AN ELECTRICAL BURNING ODOR. CIRCUIT BREAKER TO COFFEE MAKERS WERE PULLED TO ISOLATE POSSIBLE CAUSE. ODOR DIMINISHED. ACFT GROUNDED. REMOVED AND REPLACED THE FWD GALLEY COFFEEMAKERS AND PERFORMED GVIS AND FIM 25-31 TASK 803.May 23, 2018 · N468AS · Boeing 737990ER · Buffet/GalleysSDR ASAA2018052024747Sensor · failedON APPROACH AT 4000 FT AND 10C TAT LEFT SIDE WINDOW HEAT OVERHEAT. GROUNDED - YES. LEFT SIDE WINDOW HEAT CONTROL UNIT BITE DONE REF FIM 30-41 TASK 801. BITE HISTORY FAULTS WINDOW HEAT SENSOR. RESISTANCE OF SENSOR IN THE UPPER LIMIT REF FIM 30-41 TASK 811 STEP May 20, 2018 · N468AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2018052174699Control Unit · malfunctionedL2 WINDOW OVERHEAT LIGHT ILLUMINATED IN FLIGHT QRH PROCEDURE FOLLOWED AND LIGHT REMAINED EXTINGUISHED. ACFT GROUNDED. REMOVED AND REPLACED THE LT SIDE WINDOW HEAT CONTROL UNIT IAW AMM 30-41-11, OPS CHECKED GOOD IAW AMM 30-41-11-400-801, PARAGRAPH G.May 17, 2018 · N468AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA201805184679Sensor · failedL2 WINDOW OVERHEAT LIGHT ILLUMINATED DURING TAXI. FOLLOWED QRH PROCEDURE. RESET THE SWITCH AND THE L2 WINDOW OVERHEAT LIGHT ILLUMINATED AGAIN. ACFT GROUNDED. ACCOMPLISHED LEFT SIDE WHC BITE IAW FIM 30-41 TASK 801. FOUND SEVERAL WINDOW SENSOR FAULTS. PERMay 16, 2018 · N468AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA201805184678Warning Message · false activationLEFT WINDOW OVERHEAT LIGHT ILLUMINATED. ACFT GROUNDED. PERFORMED QRH. RESET THE WINDOW HEAT SWITCH AND LIGHT REMAINED OFF.May 16, 2018 · N468AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2018050424559Warning System · false activationWHILE ACCOMPLISHING T/C 78273000, FOUND NR 1 ENGINE 76-31361, START LEVER SIGNALS DISAGREE LONG TERM FAULT. GROUNDED - YES. PERFORMED EEC BITE PER FIM 73-00 TASK 801 AND FOUND NO FAULTS IN RECENT FAULTS OR FAULT HISTORY. INTERMITTENT FAULT REF INITIAL EVAL FIMMay 4, 2018 · N468AS · Boeing 737990ER · Engine ControlsSDR ASAA2018040824156Valve · faultedZONE TEMP LIGHT TURNS ON AFTER DOING A MASTER CAUTION RECALL THE ZONE TEMP LIGHT WILL RESET. GROUNDED - YES. CONFIRMED FAULT. CABIN ZONE TEMP LIGHTS ILLUMINATE DURING MASTER CAUTION RECALL. PERFORMED NR 1 AND NR 2 CABIN TEMP CONTROLLER BITE REF FIM 21-61. NR 1Apr 8, 2018 · N468AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2018021523592Wire Harness · faultedDURING A FIRE DETECTOR TEST, THE NR 2 ENGINE FIRE LIGHT DID NOT ILLUMINATE AND FAULT LIGHT IS DISPLAYED. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE CORE FIRE DETECTION HARNESS CA244-02. OPS TESTED NORMAL,Feb 15, 2018 · N468AS · Boeing 737990ER · Fire DetectionSDR ASAA2017090821860Control Panel · failedFO'S COURSE SELECTOR INTERMITTENTLY FROZE UP. GROUNDED - YES. REMOVED AND REPLACED DFCS MCP, REF AMM 22-11-34 P/B 400. CHECKS OK, REF AMM 22-11-34-740-801.Sep 8, 2017 · N468AS · Boeing 737990ER · Autopilot SystemSDR ASAA2017090821859Control Panel · malfunctionedFIRST OFFICER`S COURSE SELECTOR ON MCP IS FROZEN, CAN'T CHANGE COURSE. ACFT GROUNDED. VERIFIED DEFECT, CYCLED MCP DC 1 & 2 CIRCUIT BREAKERS, FIRST OFFICER`S COURSE WINDOW OPS NORMAL IAW AMM 22-11-34. ACCOMPLISHED FLIGHT DIRECTOR MCP COURSE/HEADING SELECT TESep 8, 2017 · N468AS · Boeing 737990ER · Autopilot SystemSDR ASAA2017083021773Pump · leakingDURING START OF THE NR 2 ENGINE. FUEL FOUND LEAKING. GROUND CREW REPORTED FUEL LEAK DURING AND AFTER START. ACFT GROUNDED. PERFORMED ENGINE VENTS AND DRAIN INSPECTION ON THE NR 2 ENGINE. RAN THE NR 2 ENGINE TWO TIMES AT IDLE POWER. FUEL LEAKING DURING STARTAug 30, 2017 · N468AS · Boeing 737990ER · Engine Fuel PumpSDR ASAA2017081621647Warning Light · false activationAFTER ENGINE START RIGHT PACK OVERHEATED. CREW ACCOMPLISHED CHECKLIST BUT OVERHEAT REMAINED. ACFT GROUNDED. RESET PACK TRIP INDICATION BACK TO NORMAL. RAN BOTH ENGINES AT IDLE. RT PACK TEMPERATURE REMAINS AT NORMAL. NO FAULTS NOTED.Aug 16, 2017 · N468AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2017080721602Start Valve · faultedNR 1 ENGINE HAS HISTORY OF BLINKING START ADVISORY. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 ENGINE START VALVE IAW AMM 80-11-03-400-801-F00. OPS AND LEAK CHECKED GOOD.Aug 7, 2017 · N468AS · Boeing 737990ER · Engine Start Valves/ControlsSDR ASAA2017072521470Warning Light · false activationAFTER NR 2 ENGINE START, AMBER STATER LIGHT AND AMBER LOW OIL PRESSURE LIGHT STARTED FLASHING DURING NR 1 ENGINE START. AMBER STARTER LIGHT REMAINED SOLID. RAN QRH FOR ABORTED START NR 2 ENGINE. ACFT GROUNDED. PERFORMED NR 2 ENGINE START PROCEDURE IAW AMM Jul 25, 2017 · N468AS · Boeing 737990ER · Engine Oil Indicating SystemSDR ASAA2017070321267Probe · out of toleranceAFTER TAKEOFF, HAD AN EGT OVERTEMP ON THE NR 1 ENGINE. 954 DEGREES FOR LESS THAN 5 SECONDS. 27K BUMP POWER. DIAGNOSTICS REPORTED THE NR 1 ENGINE EXPERIENCED AN EGT EXCEEDANCE DURING TAKEOFF THAT MAY HAVE EXCEEDED THE TRANSIENT AREA LIMITS. PEAK EGT RECORDED Jul 3, 2017 · N468AS · Boeing 737990ER · Engine Temperature Indicating SystemSDR ASAA2017063021248Engine · faultedFOUNDTHE NR 1 ENGINE WITH AN ECONOMIC FAULT MESSAGE 77-10851. THE BOTTOM RIGHT EGT SIGNAL IS OUT OF RANGE. ACFT GROUNDED.Jun 30, 2017 · N468AS · Boeing 737990ER · Engine (Turbine/Turboprop)SDR ASAA2017062621204Wire Harness · damagedFOUND CORE FIRE DETECTION HARNESS MW326 DAMAGED. ACFT GROUNDED. REPLACED THE FIRE DETECTION HARNESS IAW AMM 26-11-02-000-802, AND -400-802. OPS CHECKED NORMAL.Jun 26, 2017 · N468AS · Boeing 737990ER · Fire Protection System WiringSDR ASAA2017062421172Wire Harness · damagedWHILE PERFORMING T/C N842001, RT ENGINE HARNESS GVI, FOUND M326 HARNESS DAMAGED. ACFT GROUNDED. THE WIRE HARNESS WAS REMOVED AND REPLACED IAW AMM 26-11-02. OPERATIONAL CHECKED GOOD.Jun 24, 2017 · N468AS · Boeing 737990ER · Fire Protection System WiringSDR ASAA2017052820905Pressure Switch · inoperativeNR 2 ENGINE FILTER BYPASS LIGHT ILLUMINATED ON TAXI IN. ACFT GROUNDED. NR 2 ENGINE FUEL FILTER DIFFERENTIAL PRESSURE WARNING SYSTEM IS INOPERATIVE. REPLACED THE NR 2 ENGINE FUEL FILTER DIFFERENTIAL PRESSURE SWITCH IAW FIM 73-05 TASK 801. OPS & LEAK CHECKED May 28, 2017 · N468AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2017052620904Pressure Switch · failedDURING TAXI, SHUTDOWN THE NR 1 ENGINE FOR FLOW TIME. RESTARTED USING CROSSBLEED PROCEEDURES. LINED UP ON RUNWAY AND THE NR 2 ENGINE FILTER BYPASS LIGHT ILLUMINATED FOR APPROXIMATELY 1 MINUTE THEN EXTINGUISHED. ACFT GROUNDED. REPLACED THE NR ENGINE FUEL FILTMay 26, 2017 · N468AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2017050120593Actuator · failedRIGHT PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL. RIGHT PACK LIGHT TURNS OFF WITH MASTER CAUTION RESET. GROUNDED - YES. WHILE ON MEL, CLIMBING THROUGH FL280 RIGHT PACK LIGHT ILLUMINATED. RESET SEVERAL TIMES - LIGHT RE-ILLUMINATED. CONTINUED SINGLE PACK. QMay 1, 2017 · N468AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2017043020581Warning Light · false activationRIGHT PACK ILLUMINATED ON RECALL. EXTINGUISHES WHEN MASTER CAUTION RESET. ACFT GROUNDED. TROUBLESHOT IAW AMM 21-61-00, FOUND THE NR 2 PACK ZONE TEMP CONTROLLER WITH SRADA INLET FAULT - PREVIOUS FLIGHT. CONTINUED WITH BITE TEST OF BOTH ZONE TEMP CONTROLLERS AApr 30, 2017 · N468AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2017041820482Transmitter · failedAFTER LANDING, TAXIING CLEAR OF RUNWAY, OIL FILTER BYPASS LIGHT ILLUMINATED ON NR 1 ENGINE. ACFT GROUNDED. ACCOMPLISHED FMC/CDU TEST ON NR 1 ENGINE, SHOWED FAULT 79-31121-OIL FILTER SIGNAL DISAGREE ON LAST 6 FLIGHT LEGS. PERFORMED EEC TEST ON NR 1 ENGINE, VEApr 18, 2017 · N468AS · Boeing 737990ER · Engine Oil Distribution (Airframe Furnished)SDR ASAA2017041620470Fmc · failedFIRST OFFICER`S MAP FLAG ILLUMINATED. ACFT GROUNDED. REMOVED AND REPLACED THE RIGHT FMC IAW AMM 34-61-02-000-801, AND 34-61-02-400-801. OPS CHECKED GOOD.Apr 16, 2017 · N468AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2017041320463Fmc · malfunctionedDURING DESCENT, VTK AND MAP FAILURE FLAG DISPLAYED ON CAPTAIN'S AND THEN ALTERNATED TO F/O'S WHILE RESTORED TO CAPTAIN'S SIDE. THE DISPLAYS ALTERNATED VTK AND MAP FAILURE ON LANDING. ACFT GROUNDED. FMCS BITE, NO SENSOR FAULTS. 13 INFLIGHT FAULTS LOGGED ON Apr 13, 2017 · N468AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2017041320462Fmc · malfunctionedNR 2 FMC ON MEL, FMC SELECTOR ON "BOTH ON LEFT" POSITION, INTERMITTENT VTK DISPLAYED ON BOTH ND DISPLAYS & MAP FLAGS. ACFT GROUNDED. FMCS BITE NO SENSOR FAULTS. 13 INFLIGHT FAULTS LOGGED ON LEGS 2 AND 9. FAULTS ON BOTH LEGS IDENTICAL. VERIFIED BOTH FMC SOFTWAApr 13, 2017 · N468AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2017041220443Fmc · unknownAT 34000 FT VTK AND MAP FLAG DISPLAYED ON F/O NAV DISPLAY. FMC FAIL QRH PROCEDURE FOLLOWED, DUAL FMC OPERATION RESTORED. ACFT GROUNDED. NO OTHER FAULTS NOTED AT THIS TIME.Apr 12, 2017 · N468AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2017041020423Fmc · unknownDURING TAXI OUT OBSERVED VTK ON CAPTAIN'S ND AND MAP ON F/O'S ND. AFTER STOPPING CAPTAIN'S ND WENT BACK TO NORMAL BUT F/O ND REMAINED WITH MAP ANNUNCIATED. PERFORMED QRH FOR FMC FAIL, ALL DISPLAYS AND BOTH FMC WERE RESTORED TO NORMAL. ACFT GROUNDED. COMPLIEDApr 10, 2017 · N468AS · Boeing 737990ER · Flight Management Computing Hardware System
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