N464AS

Service difficulty reports · 266

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 = 'N464AS' 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 ASAA2019100423902Relay · malfunctionedON SHUTDOWN AT GATE #2 ENGINE EGT SHOWED "ENG FAIL" MOMENTARILY. GROUNDED - YES. PRECAUTIONARY REMOVED AND REPLACED ENGINE START LEVER RELAY R 568, OPS CHECK GOOD. NOSE GEAR PRESSURE PANEL LEAK CHECK GOOD.Oct 2, 2019 · N464AS · Boeing 737990ER · Engine Starting System WiringSDR ASAA2019091130669Unknown · malfunctionedJUST PRIOR TO PUSH-BACK, NOTICED MAP ON FO NAV DISPLAY. FMC POSITION PAGE SHOWED BLANK FOR RIGHT IRS. GROUNDED - YES. REALIGNED RIGHT IRS AND MAP ON FO NAV DISPLAY WENT AWAY, RIGHT IRS SHOWS POSITION, NO FURTHER DEFECTS NOTED AMM REF 34-61-00 GROUND VERIFICATISep 11, 2019 · N464AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2019072930250Key Pad · intermittent#2 FMC EXEC KEY IS INTERMITTENT. GROUNDED - YES. REMOVED AN REPLACED MCDU #2 KEYPAD PER AMM 34-61-01-400-801/34-61-01-000-801. OP'S CK'S GOOD.Jul 29, 2019 · N464AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2019070829974Controller · faultedAFTER ENG START UPON MASTER CAUTION RECALL TEST, GOT A AMBER MASTER CAUTION LIGHT FOR FWD CAB ZONE TEMP WHICH CLEARED ON MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED PACK TEMP CONTROL BITE PROCEDURE PER FIM 21-62 TASK 801. FOUND ZONE TRIM VALVE CONTROLLEJul 8, 2019 · N464AS · Boeing 737990ER · Cabin Temperature ControllerSDR ASAA2019062829859Modulating Valve · intermittentFWD CAB "ZONE TEMP" LIGHT ILLUMINATES ON RECALL. GROUNDED - YES. THE SYSTEM TESTED GOOD BUT DUE TO HISTORY REMOVED AND REPLACED THE FWD CABIN ZONE TEMPERATURE TRIM MODULATION VALVE IAW AMM 21-61-21-000-801 AND 21-61-21-400-801. GROUND FUNCTIONAL CHECK FOR TIHSJun 28, 2019 · N464AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2019062869828Fmc · malfunctionedVTK FO DISPLAY RIGHT FMC IN-OP. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 34-61 TASK 801. FMCS BITE. NO FAULTS LOGGED. PERFORMED FMCS OPS TEST REF B737-900 AMM 34-61-00. OPS NORMAL. CLEARS MEL 34-36J.Jun 26, 2019 · N464AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2019061969729Warning Light · false activationCABIN ZONE TEMP ILLUMINATED ON RECALL. GROUNDED - YES. FWD CABIN ZONE TEMP LIGHT DID NOT ILLUMINATE ON RECALL. PERFORMED PACK/ZONE TEMP CONTROLLER BITE ON BOTH RIGHT AND LEFT CONTROLLER BITE ON BOTH RIGHT AND LEFT CONTROLLERS PER B737-900 FIM 21-62 TASK 801. BJun 16, 2019 · N464AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2019061752973Valve · stuckFWD CABIN ZONE TEMP LT OUT ON M/C RAN QRH. GROUNDED - YES. PREFORMED FWD CABIN AUTO TEMP CONTROL DOES NOT OPERATE FIM, REF B737-900 FIM 21-61 TASK 864, FOUND TEMPERATURE IN THE FWD CABIN DID NOT INCREASE, PROCEEDED TO PACK/ZONE TEMP BITE TEST, REF FIM 21-62 TAJun 15, 2019 · N464AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2019060429569Satcom · lockedSATCOM LOCK UP. GROUNDED - YES. B737 QRH PROCEDURE PERFORMED SATCOM OPS NORMAL.Jun 2, 2019 · N464AS · Boeing 737990ER · Communications SystemSDR ASAA2019060529574Transceiver · failedSATCOM LOCKED UP. QRH PERFORMED. NO SUCCESS. GROUNDED - YES. REMOVED & REPLACED SATCOM IRIDIUM TRANSCEIVER REF B737-900 AMM 23-15-00 1 C/B OPEN & CLOSED, SYSTEM TEST PASSED.Jun 1, 2019 · N464AS · Boeing 737990ER · Communications SystemSDR ASAA2019051929373Warning System · false activationAFTER ENGINE START AND PRESSING MASTER CAUTION RECALL THE FWD CAB ZONE TEMP LIGHT ILLUMINATED BUT EXTINGUISHED WITH MASTER CAUTION RESET. GROUNDED - YES. PACK/ZONE TEMP CONTROLLER BITE DONE REF AMM 21-61-00-700-806-002 WITH NO FAULTS FOUND.May 19, 2019 · N464AS · Boeing 737990ER · Cabin Temperature IndicatorSDR ASAA2019051529360Unknown · malfunctionedINFO ONLY "SAT" OPTION NOT DISPLAYED ON CAPT'S MCDU, IS DISPLAYED ON F/O MCDO. GROUNDED - YES. COMPLETED SAT LOCK-UP B737 QRH WITH NO RESULT TESTED SATCOM USING F/O MCDO AND FUNCTIONED PROPERLY BUT STILL NO "SAT" ON CAPT'S MENU UNTIL APPROX 1.5 HRS THEN "SAT" May 15, 2019 · N464AS · Boeing 737990ER · HF Communications SystemSDR ASAA2019050329235Satcom · lockedSATCOM LOCKUP.RAN QRH PROCEDURESATCOM RE-ESTABLISHEDWORKS OKINFO ONLY. GROUNDED - YES. RAN QRH PROCEDURE SATCOM RE-ESTABLISHED WORKS OK.May 3, 2019 · N464AS · Boeing 737990ER · HF Communications SystemSDR ASAA2019040538894Display · malfunctionedDURING DESCENT RIGHT ND DISPLAYED VTK, FMC P/RST WARNING ON HEADING & PITCH GUIDANCE RETRACTED FROM VIEW. AFTER 15 SECONDS LIGHT WENT OUT & GUIDANCE RETURNED. GROUNDED - YES. ACCOMPLISHED FMCS BITE REF B737-900 FIM 34-61 TASK 801. NO SENSOR FAULTS LOGGED. INFLApr 3, 2019 · N464AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2019040128870Oil System · lowAFTER FLIGHT APU START FAILED DUE TO LOW OIL PRESSURE LIGHT. GROUNDED - YES. ETOPS OIL SYSTEM SERVICED. PERFORMED APU BITE. NO FAULTS IN CURRENT STATUS, FAULT AND MAINTENANCE HISTORIES IAW FIM 49-60 TASK 801. CHECKED APU OIL LEVEL AT APU, CHECKED FULL REF B737Apr 1, 2019 · N464AS · Boeing 737990ER · APU Oil SystemSDR ASAA2018121827468Warning System · false activationUPON RECALL CONT. CAB ZONE TEMP LIGHT ILLUMINATES. EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. FLT DECK PRIMARY TEMP CONTROL INOP FLT DECK TRIM VALVE FAULT, RESET & TESTS NML PER FIM 21-62 TASK 832.Dec 18, 2018 · N464AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2018121207485Wire Harness · unknownFLT ATTENDANT REPORTS LOUD BANGING IN AFT GALLEY DOOR DURING S.E. TAXI WITH APU RUNNING. GROUNDED - YES. VERIFIED LOUD BANGING SOUND COMING FROM APU WHEN HIGHER BLEED AIR IS REQUIRED (HIGHER THAN 20 PSI). NO DEFECTS IN TAIL PIPE. REPLACED APU ENGINE WIRE HARNEDec 10, 2018 · N464AS · Boeing 737990ER · APU System WiringSDR ASAA2018120627267Ecu · noiseFA'S REPORT ABNORMAL NOISE COMING FROM AFT (GALLEY) AREA OF AIRCRAFT . GROUNDED - YES. REVIEWED HISTORY. ACCOMPLISHED FIM 49-55-808 NO CURRENT FAULTS. MAX APU EGT DURING MES WAS 475 DEGREES. NO OTHER DEFECTS NOTED. ACCOMPLISHED FIM 36-10-806. NO FAULTS WITH INDec 6, 2018 · N464AS · Boeing 737990ER · APU ControlsSDR ASAA2018112227086Knob · looseRIGHT THRUST LEVER KNOB IS LOOSE. GROUNDED - YES. TIGHTENED SCREW AND SECURED KNOB.Nov 22, 2018 · N464AS · Boeing 737990ER · Power LeverSDR ASAA2018112107025Warning Light · false activationAFTER APU SHUTDOWN AND EXTERNAL POWER APPLICATION AVIONICS COOLING HORN SOUNDED. GROUNDED - YES. CONFIRMED DEFECT AND ALSO OBSERVED RIGHT "TRANSFER BUS OFF" LIGHT ILLUMINATED. FOUND BUS POWER CONTROL UNIT WITH A "EPDIST/BUS FAULT" LIGHT. PER B737-900 FIM 24-41Nov 20, 2018 · N464AS · Boeing 737990ER · AC Generation SystemSDR ASAA2018110526710Warning Light · illuminatedAT THE COMPLETION OF THE BEFORE TAKEOFF CHECKLIST, DURING MASTER RECALL, BOTH PACK LIGHTS ILLUMINATED. LIGHTS EXTINGUISH WITH MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE REF B737-900 AMM 21-61-00, #1 CONTROLLER LOGGED EXITNov 3, 2018 · N464AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2018110526718Display · malfunctionedDURING CRUISE FLIGHT LNAV & VNAV KICKED OFF & VTK DISPLAYED ON FO'S ND DISPLAY FOR ABOUT 10 SECONDS THEN WENT AWAY & OPS RETURNED TO NML. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 801. BITE SHOWS "FMC-R PRES POS LAT RATE" ON FMC-L LAST FLIGHT. FIM 34-6Nov 2, 2018 · N464AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2018100826390Selector · bindingAIR TEMP KNOB HARD TO ROTATE. GROUNDED - YES. RMVD & RPLCD CABIN TEMP SELECTOR P5-17 REF AMM 21-61-07. OPS NML PER SAME. ETOPS GND VERIFICATION SUCCESSFUL.Oct 4, 2018 · N464AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2018100826359Control Valve · noisyON TAXI OUT FA REPORTS HEARING LOUD METALLIC BANGING NOISE FROM RIGHT AFT LOWER AIRCRAFT. GROUNDED - YES. REMOVED AND REPLACED SURGE CONTROL VALVE REF AMM 49-52-41. IN ADDITION REMOVED AND REPLACED THE STARTER-GENERATOR AND LUBE FILTERS. REF AMM 49-91-12. TWO Oct 3, 2018 · N464AS · Boeing 737990ER · APU Bleed Air SystemSDR ASAA2018092126199Filter · dirtyFAN FOR FLIGHT DECK TEMP SENSOR IN CEILING IS NOISY. GROUNDED - YES. CLEANED FLIGHT DECK TEMP SENSOR FILTER AND FAN PER AMM 21-61-06-100-801. FLIGHT DECK TEMP SENSOR FAN IN CEILING OPERATES NORMAL.Sep 19, 2018 · N464AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2018072325478Sensor · failedAC FAILS 30 DAY IN-USE CHECK DUE TO AILERON POS SENSOR FAILING TEST. MSG 22-11146 AND MSG 22-11145. GROUNDED - YES. REMOVED AND REPLACED AILERON POS SENSOR REF AMM 22-11-29. OPS NORMAL.Jul 21, 2018 · N464AS · Boeing 737990ER · Aileron Control SystemSDR ASAA201806255174Panel · looseFOUND FAN DUCT PANELS AT THE 6 AND 3 O`CLOCK POSITIONS TO BE LOOSE. ACFT GROUNDED. TIGHTENED FASTENERS ON FAN DUCT PANELS IAW AMM 72-23-07. PANELS ARE SECURE.Jun 23, 2018 · N464AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2018060864959Warning Light · false activationCONTROL CABIN ZONE TEMP ILLUMINATED. ON RECALL, DID NOT RESET. ACFT GROUNDED. ACCOMPLISHED A PACK/ZONE TEMPERATURE CONTROLLER BITE TEST, OPS NORMAL IAW AMM 21-61-00-700-806-002.Jun 6, 2018 · N464AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2018052224748Spacer · debondedWHILE ACCOMPLISHING TC 78472002, FOUND NR 2 ENG FAN BLADE SPACERS NR 3 AND NR 11 DISBONDED. GROUNDED - YES. REMOVED AND REPLACED NR 3 AND NR 11 FAN BLADE SPACERS ON NR 2 ENGINE IAW MTX TASK CARD 78472002 (CFM56-7 FAN BLADE LUBRICATION).May 22, 2018 · N464AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2018043024551Hmu · faultyWHILE ACCOMPLISHING T/C 78273000 FAULT CODE APPEARED ON NR 2 ENGINE, FAULT CODE 73-31162, THE MECHANICAL OVERSPEED PROTECTION SIGNAL IS OUT OF RANGE, LONG TIME. MUST BE CORRECTED IN 450 HRS. GROUNDED - YES. REMOVED AND REPLACED HMU ON NR 2 ENGINE IAW T/C'S N84Apr 30, 2018 · N464AS · Boeing 737990ER · Fuel Control/Turbine EnginesSDR ASAA2018042224341Eec · faultedWHILE ACCOMPLISHING TC 78273000 FOUND FAULT 73-31162 FOR THE NR 2 ENGINE. THE MECHANICAL OVERSPEED PROTECTION SIGNAL IS OUT OF RANGE. ACFT GROUNDED. TROUBLESHOT IAW FIM 73-25 TASK 805. ALL RESISTANCE CHECKS PASSED. FAULT HISTORY ONLY SHOWS THE FAULT OCCURRApr 22, 2018 · N464AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2018032324022Warning Light · false activationCONTROL CABIN ZONE TEMP LIGHT ON DURING RECALL, LIGHT OUT AFTER RESET. ACFT GROUNDED. PERFORMED BITE TEST OF ZONE TEMP CONTROLLER IAW AMM 21-60-00, FLT DECK TRIM VALVE SOFT FAULT, RESET THE NR 2 PACK ZONE TEMP CONTROLLER, NO FAULTS NOTED. NO HISTORY LAST 60 Mar 23, 2018 · N464AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2018031423885Seal · leakingNR 1 IDG DRIVE PAD LEAKING IAW TSR701492. ACFT GROUNDED. LEAKAGE EXCEEDSS LIMITS. PERFORMED A NR 1 IDG OIL SYSTEM STATIC LEAK CHECK, NO LEAKS NOTED IAW AMM 24-11-00-700-801. REMOVED THE NR 1 IDG IAW AMM 24-11-11-000-801. REMOVED AND REPLACED THE SEAL IAWMar 14, 2018 · N464AS · Boeing 737990ER · AC Generator-AlternatorSDR ASAA2018030823787Transceiver · failedSATCOM LOCKED UP ON POWER TRANSFER. WOULD NOT COME BACK WITH QRH PROCEDURE. GROUNDED - YES. FOUND RED POWER LIGHT ILLUMINATED ON FRONT OF SATCOM IRIDIUM TRANSCEIVER. C/B RESET NO HELP. REMOVED AND REPLACED SATCOM IRIDIUM TRANSCEIVER IAW AMM 23-15-00. PERFORMEMar 8, 2018 · N464AS · Boeing 737990ER · Communications SystemSDR ASAA2017121522935Sensor · failedDUCT PRESSURE SPLIT, L 19 PSI, R 42 PSI READINGS CONSISTENT IN CLIMB AND CRUISE.ACFT GROUNDED. WHILE ACCOMPLISHING T/C #NG-36WC-00001 STEPS 1 TO 5 (G) (2) SUSPECTED 450 DEGREE F THERMOSTAT FAILED AND PRECOOLER CONTROL VALVE SENSOR FAILED. R AND R THE 450 DEGRDec 15, 2017 · N464AS · Boeing 737990ER · Pneumatic Distribution SystemSDR ASAA2017121222869Charger · inoperativeAFTER CLEAN UP ON CLIMB OUT 'BATT DISCHARGE` LIGHT ILLUMINATED, RAN QRH CK LIST, AMP DISCHARGE REGISTERED -4. GROUNDED - YES. AIR TURNBACK - REF B737-900 FIM 24-31 TASK 833 REMOVED AND REPLACED MAIN BATTERY CHARGER AND OPS TEST NORMAL PER B737-900 AMM 24-31-21Dec 12, 2017 · N464AS · Boeing 737990ER · Battery/Charger SystemSDR ASAA2017112222712Shutoff Valve · failedDUCT SPLIT AT CRUISE. FL 350, N1 90, L-20, R-38. FL 370, N1 90, L-18, R-40. ACFT GROUNDED. WHILE ACCOMPLISHING TC NG-36WC-00001, FOUND PRSOV UNSERVICEABLE. REMOVED AND REPLACED PRSOV, REF B737-900 AMM 36-11-04/401. COMPLETED T/C NG-36WC-00001. OPS CHECK GOOD.Nov 22, 2017 · N464AS · Boeing 737990ER · Pneumatic Distribution SystemSDR ASAA2017111922634Bracket · damagedNR 2 ENG LOOSE FWD BRACKET BELOW START VALVE FOR LOWER PNEUMATIC STARTER DUCT. GROUNDED - YES. REMOVED FWD BRACKET BELOW START VALVE, FOUND BOTH BOTTOM FASTENER HOLES ON BRACKET AND BOTTOM FASTENER HOLE ON FAN FRAME FOR THE STARTER DUCT BRACKET BELOW START VALNov 19, 2017 · N464AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2017102222291Autopilot Sys · malfunctionedON SHORT FINAL, APPROXIMATELY 50-100 FEET ABOVE TOUCHDOWN, AIRCRAFT WAS LINED UP WITH LEFT EDGE LINE OF RUNWAY. DISCONNECTED AUTOPILOT AND MANUALLY LANDED AIRCRAFT. ACFT GROUNDED. PERFORMED DFCS FAULT REVIEW WITH NO NOTED DISCREPANCIES IAW AMM TASK 22-00-01-7Oct 22, 2017 · N464AS · Boeing 737990ER · Autopilot SystemSDR ASAA2017081821658Warning Light · false activationDURING CRUISE, AT 35000 FEET, LEFT PACK LIGHT ILLUMINATED. PERFORMED THE QRH THAT LED US TO TURN LEFT PACK SWITCH TO OFF. ACFT GROUNDED. OBSERVED THE LT PACK LIGHT ILLUMINATED WITH RECALL EXTINGUISHED WITH MASTER CAUTION RESET. CLEARED NR 1 PACK ZONE TEMP CAug 18, 2017 · N464AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2017070721319Keyboard · damagedFIRST OFFICERS FMC R-6 BUTTON BROKEN. GROUNDED - YES. REMOVED AND REPLACED #2 MCDU KEYBOARD IN REFERENCE TO B737-900 AMM 34-61-01. OPS CHECKS GOOD. AIRCRAFT RELEASED FROM MEL 34-36L.Jul 7, 2017 · N464AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2017070221235Control Valve · failedLEFT PACK LIGHT ILLUMINATED ON RECALL AND EXTINGUISHED WITH MASTER CAUTION RESET. ACFT GROUNDED. REMOVED & REPLACED THE LEFT PACK TCV IAW AMM 21-61-21. GROUND VERIFICATION SUCCESSFUL, OPS CHECK NORMAL.Jul 2, 2017 · N464AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2017062321180Eec · failedDURING ACCOMPLISHMENT OF T/C 78273000, SHORT TIME FAULT 73-11271 DISPLAYED. EEC INTERNAL FAULT. ACFT GROUNDED. REMOVED AND REPLACED THR NR 1 EEC IAW AMM 73-21-60-401. OPS TESTED NORMAL.Jun 23, 2017 · N464AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2017062121198Eec · failedNR 1 EEC CONTROL LIGHT ON. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 ENGINE EEC IAW AMM 73-21-60-401. OPS TESTED NORMAL.Jun 21, 2017 · N464AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2017062021148Warning Light · false activationON LANDING THE NR 1 ENGINE EEC LIGHT ILLUMINATED. COCKPIT ENGINE INDICATIONS NORMAL. ACFT GROUNDED. PERFORMED EEC BITE CHECK IAW FIM 73-00, TASK 801. NOTED TWO FAULTS ON PRESENT FAULTS SECTION. PERFORMED ENGINE RUN FOR 5 MINUTES. ALL FAULTS CLEARED. EEC LJun 20, 2017 · N464AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2017061721096Warning Light · false activationON MASTER RECALL, THE LT PACK LIGHT ILLUMINATED. LIGHT EXTINGUISHED WITH MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED A PACK ZONE TEMP CONTROLLER BITE CHECK AND FOUND THE NR 1 TCV FAULT LIGHT FOR THIS PACK, ZONE TEMP CONTROL NR 1. RESET, REPERFORMED BIJun 17, 2017 · N464AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2017042520534Switchpack · failedADVANCING NR 1 ENGINE THROTTLE DOES NOT CAUSE TAKEOFF WARNING HORN AND TAKEOFF CONFIGURATION LIGHT TO ILLUMINATE. PROBLEM IS INTERMITTENT. ACFT GROUNDED. PSEU BITE IAW FIM 32-09 TASK 801 SHOWED NO EXISTING FAULTS BUT FAULT HISTORY SHOWED FAULT 31-52002 TRA Apr 25, 2017 · N464AS · Boeing 737990ER · Central WarningSDR ASAA2017041820481Fmc · malfunctionedDURING CRUISE, FMC P/RST ILLUMINATED, ALONG WITH VTK ON F/O'S DISPLAY. LNAV AND VNAV DISCONNECTED. SWITCHED TO A AUTOPILOT AND INDICATIONS DISAPPEARED AND SYSTEM RETURNED TO NORMAL AFTER ABOUT 30 SECONDS. OPERATED NORMALLY FOR THE REST OF THE FLIGHT. ACFT GRApr 18, 2017 · N464AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2017032620269Warning Light · false activationLEFT PACK LIGHT ILLUMINATED ON RECALL, AND LIGHT EXTINGUISHED ON RESET. ACFT GROUNDED. PERFORMED PACK ZONE TEMP CONTROLLER BITE TEST IAW FIM 21-61-00. SATISFACTORY, OPERATED BOTH PACKS FOR 20 MINUTES. NO FAULTS. PERFORMED PACK ZONE TEMP CONTROLLER BITE TEST Mar 26, 2017 · N464AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2017031320158Warning Message · intermittentR1 FWD WINDOW OVERHEAT TURNED OFF FOR 7 MINUTES THEN BACK ON AND STILL ILLUMINATES. ACFT GROUNDED. PERFORMED FIM TASK 30-41 TASK 801, COULD NOT FIND FAULT FOR WINDOW HEAT CONTROL WHCU. REMOVED AND REPLACED R1 WINDOW IAW AMM 56-11-11. OPS AND LEAK CHECKED GOODMar 13, 2017 · N464AS · Boeing 737990ER · Windshield/Door Rain/Ice Removal
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