N481AS

Service difficulty reports · 217

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 = 'N481AS' 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 ASAA2020090331129Actuator · intermittentDURING CRUISE THE PACK LIGHT ILLUMINATED. RAN QRH AND LIGHT WOULD NOT STAY EXTINGUISHED. PACK TURNED OFF PER QRH FOR REMAINDER OF FLIGHT. GROUNDED - YES. REF B737-900 FIM 21-53 TASK 820, COMPLETED STEPS A THRU E AND F (1&2). DURING RAM AIR SYSTEM-OPERATIOSep 1, 2020 · N481AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2020082933127A/C Pack · malfunctionedLT PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL AND GOES OUT ON MC RESET. GROUNDED - YES. ACCOMPLISHED PACK TEMP CONTROL BITE PROCEDURE ON NR 1 AND NR 2 CONTROLLERS, BOTH TESTS PASSED NO FAULTS NOTED. VERIFIED GREEN LIGHT ON, NO LRU FAULTS-ON SRADA EXIT Aug 29, 2020 · N481AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2020082643079Fmc · faultedINTERMITTENT "VTK" ON FO FMCF, CONDITION SELF CORRECTED WITHIN 30 SECONDS. GROUNDED - YES. NR 2 FMC LOGGED L FMC 1 FAULT. SYS TESTS GOOD, REF B737-900 AMM 34-61-00 501.Aug 24, 2020 · N481AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2020082503074Warning Message · false activationON MC RECALL LT PACK LIGHT ILLUMINATED. FOLLOWED QRH, EXTINGUISHED AFTER MC RESET. GROUNDED - YES. NR 1 ZONE TEMP CONT LOGGED SRADA EXIT FAULT. PERFORMED PACK TEMP CONTROL BITE PROCEDURE ON THE NR 1 & 2 ZONE TEMP CONTROL UNIT, PER B737-900 FIM 21-62 TASK 8Aug 23, 2020 · N481AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2020082423059Sensor · faultedLT PACK LITE ILLUMINATES ON RECALL, EXTINGUISHES ON RESET -FL350. GROUNDED - YES. PERFORMED PACK ZONE TEMP CONTROL BITE, REF B737-900 FIM 21-62 TASK 801. FOUND RAM AIR SENSOR SRADA EXIT FAULT LOGGED. PERFORMED LT RAM AIR EXIT ACTUATOR FAULT ISOLATION, REF Aug 22, 2020 · N481AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2020082083042Sliding Window · inoperativeLT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED AT CRUISE. QRH PROCEDURE ACCOMPLISHED, OVERHEAT LIGHT RE-ILLUMINATED AFTER PLACING BACK TO ON POSITION FAULT CODE: 304 020 41. GROUNDED - YES. REMOVED & REPLACED R2 SLIDING WINDOW AND COMPLETED ADJUSTMENT, REF B737-Aug 18, 2020 · N481AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2020080752995Control Unit · inoperativeDURING DESCENT, AROUND 17000FT LEFT SIDE WINDOW OVERHEAT ILLUMINATED, RESET IAW QRH AND LIGHT STAYED OFF. GROUNDED - YES. REMOVED & REPLACED WINDOW HEAT CONTROL UNIT IAW AMM 30-41-11 & COIL CORD, OPS CHECKED NORMAL.Aug 5, 2020 · N481AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2020080642989Warning Light · false activationLEFT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED ON DESCENT INTO SEATTLE. GROUNDED - YES. WHCU BIT VERIFY TEST PASS, SENSOR FAULT FOR PREVIOUS LEG. OBSERVED SPARE SENSOR IN USE. RESISTANCE CKS WITHIN LIMITS & SAME VALUE FOR BOTH SENSOR, HEAT FILM CHECKED NORMAL. SHAug 4, 2020 · N481AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2020080322970Warning Message · false activationLEFT SIDE WINDOW OVERHEAT CAUTION LIGHT ILLUMINATED. FOLLOWED QRH PROCEDURE AND LIGHT ILLUMINATED AGAIN WHEN TURNED BACK ON. GROUNDED - YES. UPON ARRIVAL TO A/C OBSEERVED LEFT SIDE WINDOW ON AND GREEN. ACCOMPLISHED BITE OF WHCU FOR LEFT SIDE, BIT IS GREEN PASSAug 2, 2020 · N481AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2020080322969Control Panel · malfunctionedVERTICAL SPEED DIGITAL READOUT IS UNREADABLE. GROUNDED - YES. REMOVED AND REPLACED DFCS MODE CONTROL PANEL REF B737-900 AMM 22-11-34-400-801. OPS CHECK GOOD WITH NO FAULTS FOUND. ACCOMPLISHED DFCS MCP LRU REPLACEMENT TEST, GRP BITE 32, ALL TEST PASSED. ACCOMPLAug 2, 2020 · N481AS · Boeing 737990ER · Autopilot SystemSDR ASAA2020050532704Transceiver · inoperativeHF #1 INOP. GROUNDED - YES. REPLACED #1 HF TRANSCEIVER REF B737-900 AMM 23-11-21. OPS NORMAL REF SAME.May 4, 2020 · N481AS · Boeing 737990ER · HF Communications SystemSDR ASAA2020020532082Buss Bar · looseDURING TROUBLESHOOTING FOR HOT BATT BUS CB TRIPPING PER TSR704710, FOUND LOOSE BACB29B7S2 BUS ASSY AND EXHIBITED EVIDENCE OF ARCING. GROUNDED - YES. REMOVED LOOSE BUS ASSY AND REMOVED AND REPLACED CIRCUIT BREAKERS C1361 AND C1362 PRECAUTIONARY PER ASA 737 SWPMFeb 3, 2020 · N481AS · Boeing 737990ER · Electrical Power System WiringSDR ASAA2020010631778Unknown · malfunctionedUPON POWER TRANSFER FROM ENGINE GENERATORS TO APU, ALL DU'S WENT BLANK FOR 3 PLUS SECONDS & THEN CAME BACK ON. WE TRANSFERRED POWER BACK TO ENGINE GENS & DUS DID THE SAME THING. WE HAD A TR UNIT FAIL INDICATION 3 TIMES ON TAKEOFF. INDICATIONS WENT AWAY. WE TALJan 3, 2020 · N481AS · Boeing 737990ER · DC Generating SystemSDR ASAA2019121643612Fmc · malfunctionedINTERMITTENT INDICATIONS OF LEFT FMC FAILURE APPROXIMATELY 30 MINS. CONDITIONS RESOLVED ITSELF EVENTUALLY. NORMAL INDICATIONS FOR LAST 2 HOURS OF FLT. GROUNDED - YES. ACCOMP L/H FMC BITE TEST LAST FLT LEG SHOWS PGM FAULT INTERMITTENT. CYCLED PWR TO A/C. ACCOMPDec 14, 2019 · N481AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2019111231280Warning Light · false activationZONE TEMP LIGHT ILLUMINATED UPON RECALL- EXTINGUISHED WHEN RESET (CONT CABIN). GROUNDED - YES. FLT DECK PRIMARY TEMP CONTROLLER INOP. ACCOMPLISHED PACK TEMP CONTROL BITE PROCEDURE PER B737-900 FIM 21-62 TASK 801. FLIGHT DECK TRIM VALVE FAULT DISPLAYED. RESET FNov 10, 2019 · N481AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2019111281295Fmc · malfunctionedAPPROXIMATELY 3 HOURS INTO THE FLIGHT AT FL340 BOTH FMC'S DISAPPEARED, VTK TEMPORARILY DISPLAYED ON CAPTAINS MAP DISPLAY AND BOTH CA : FO'S MAP BLANKED. IT HAPPENED TWICE SEPARATED BY ABOUT FIVE MINUTES. AFTER FMC OPS CAME BACK, DIRECT TO A WAYPOINT IN RTE 1, Nov 8, 2019 · N481AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2019121683616Wire Harness · damagedWHILE ACCOMPLISHING T/C 78273000 FOUND #2 ENG FAULT, MSG # 75-20832, T3 SIGNAL OUT OF RANGE, LONG TIME FAULT DEFERRED PER T/C 78273000. GROUNDED - YES. DEFERRED 450 FLT HRS, REQ SECOND DEFERRAL C/N 28010481 INSTALLED DEFERRED PER T/C 78273000. PERFORMED B737-9Oct 28, 2019 · N481AS · Boeing 737990ER · Engine Fuel System WiringSDR ASAA2019102331085Wire Harness · faultyGE DIAGNOSTICS REPORTS #2 ENGINE ESN862376 TREND DATA SHOWS A DELTA EGT INCREASE AND EGTHDM DECREASE. EGT INDICATION ERRORS ARE SUSPECT. GROUNDED - YES. REMOVED AND REPLACED CJ10 CORE ENGINE HARNESS PER B737-900 AMM 73-21-06. OPS CHECK GOOD PER AMM 73-21-00. ROct 23, 2019 · N481AS · Boeing 737990ER · Engine Fuel System WiringSDR ASAA2019100753930Satcom · malfunctionedTRIED TO CONTACT MEDLINK ON SAT2 WAS ABLE TO TALK FOR 2 MINUTES AND THEN THE LINE WENT BLANK. UNABLE TO DISCONNECT CALL (MCDU MENU INDICATED "CALL ANSWERED" WITH NO DISCONNECT PROMPT. GROUNDED - YES. PERFORMED SATCOM COMMUNICATION SYSTEM TEST GOOD REF B737-900Oct 5, 2019 · N481AS · Boeing 737990ER · Communications SystemSDR ASAA2019100743929Satcom · malfunctionedTRIED TO CALL MEDLINK AND DISPATCH USING SATCOM. COULD HEAR THEM, BUT THEY COULD NOT HEAR OUR TRANSMISSIONS. GROUNDED - YES. RESET SATCOM SYSTEM PER B737-900 FIM 23-15-00 OPS CHECK GOOD.Oct 4, 2019 · N481AS · Boeing 737990ER · Communications SystemSDR ASAA2019092030769Fmc · malfunctionedAPPROXIMATELY 3 HOURS INTO FLIGHT BOTH FMC FAILED 5 MINUTES LATER FMC RETURNED TO NORMAL OPERATIONS. THEN APPROXIMATELY 10 MINUTES BOTH FMC FAILED AGAIN FOR ABOUT 10 MINUTES. ONCE AGAIN FMC'S RETURNED TO NORMAL. GROUNDED - YES. PERFORMED FMC BITE FOUND FAULT FSep 20, 2019 · N481AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2019090630626Switch · sticksHF/SAT TRANSFER SWITCHES STICKY - NOT WORKING RIGHT. GROUNDED - YES. REPLACED HF/SAT PANEL REF AMM 23-15-00. OPS CHECK NORMAL.Sep 6, 2019 · N481AS · Boeing 737990ER · HF Communications SystemSDR ASAA2019090530640Connector · dirtyWHILE ACCOMPLISHING T/C 728273000 FOUND FAULT CODE 75-20832 FOR #2 ENGINE, T3 SIGNAL OUT OF RANGE, LONG TIME FAULT DEFERRED PER T/C 78273000. GROUNDED - YES. PLT DEFERRED FOR 450 FLT HOURS. DEFERRED PER T/C 78273000. CLEANED AND RESEATED CONNECTOR DP1005 PER FSep 5, 2019 · N481AS · Boeing 737990ER · Engine Fuel System WiringSDR ASAA2019083130575Unknown · malfunctionedLEFT PACK PRIMARY OR STANDBY PACK CONTROL INOP. GROUNDED - YES. ACCOMPLISHED BITE OF BOTH PTC FIM 21-62 TASK 801 LEFT CONTROL FAULTED TCV ON BIT AND PREV FLT WITH A GREEN ON VERIFY RIGHT CONTROL NO FAULTS. ACCOMPLISHED FIM 21-62 TASK 830 TCV WITH NO FURTHER FAAug 31, 2019 · N481AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2019082973526Warning Light · false activationCONT CABIN ZONE TEMP LIGHT ILLUMINATED ON RECALL AND EXTINGUISHED WHEN WHEN MASTER CAUTION SYS IS RESET. GROUNDED - YES. #2 ZTC LOGGED FLT DECK TRIM VALVE - BITE TESTS GOOD. FAULT RESET.Aug 27, 2019 · N481AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2019082193432Fmc · malfunctionedCAPTAINS FMC CYCLED VTK 10 TIMES AFTER LANDING. GROUNDED - YES. ACCOMPLISHED FMCS BITE PROCEDURE INFLT SHOWED L FMC. SENSOR CK SHOWED ALL OK. RESET FMCS NO FAULTS NOTED REF B737-900 AMM 34-61-00.Aug 19, 2019 · N481AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2019081530422Start Valve · failed#1 ENGINE START VALVE OPEN LIGHT REMAINED ON AFTER START. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE START VALVE PER B737-900 AMM 80-11-03. FOUR MIG 51A'S INSTALLED AND REMOVED. OPS CHECK AND GROUND VERIFICATION GOOD.Aug 15, 2019 · N481AS · Boeing 737990ER · Engine Start Valves/ControlsSDR ASAA2019081203367Cdu · inoperativeCAPTAINS CDU WENT BLANK WHILE PREFLIGHTING. GROUNDED - YES. CDU SHOWS NO FAULT OR DISCREPANCY OF NORMAL OPERATION AFTER A/C POWER DOWN IAW B737-900 AMM 20-60-99/201. OPS NORMAL.Aug 10, 2019 · N481AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA20190730234Fault Message · false activationENG # 2 MSG # 75-20832. THE T3 SIGNAL IS OUT OF RANGE. LONG TIME FAULT. GROUNDED - YES. T/S PER B737-900 FIM 75-33 TASK 802. PERFORMED EEC BITE AND 75-20832 IS STILL PRESENT ON RECENT FAULTS. PERFORMED EEC TEST PER B737-900 AMM REF 73-21-00-700-804-F00. TEST PJul 26, 2019 · N481AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2019072630219Warning System · false activationSTART VALVE OPEN LIGHT REMAINED ILLUMINATED AFTER STARTING ENG #1. GROUNDED - YES. GVI OF VALVE NO DEFECTS NOTED. EXERCISED #1 ENG START VALVE AND RAN ENGINE AT GATE OPS CKS NORMAL OK FOR SVC.Jul 26, 2019 · N481AS · Boeing 737990ER · Engine Start Valves/ControlsSDR ASAA2019071230073Unknown · malfunctionedWHILE PERFORMING TC 78273000 FOUND #2 ENGINE LONG TIME FAULT MX MSG 75-20832 T3 SIGNAL IS OUT OF RANGE. GROUNDED - YES. T/S PER FIM 75-33 TASK 802. PERFORMED EEC BITE AND 75-20832 IS STILL PRESENT ON RECENT FAULTS. PERFORMED EEC TEST PER AMM 73-21-00-700-804-FJul 12, 2019 · N481AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2019062849808Sliding Window · overheatedRIGHT SIDE WINDOW OVERHEAT ILLUMINATED IN FLIGHT. OPS NORMAL AFTER PROCEDURE. GROUNDED - YES. INFO NOTED: PER SEAMC TSR703218 BEING CREATED FOR R2 SIDE WINDOW REPLACEMENT. REMOVED R2 WINDOW REF B737-900 AMM 56-12-11. REMOVED W0210-1001-20 FROM TERMINAL #2 AND Jun 24, 2019 · N481AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA201906249792Control Unit · failedR2 WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED R/H SIDE WHCU PRECAUTIONARY PER B737-900 AMM 30-41-11. PERFORMED GOOD OPS TEST OF R/H SIDE WHCU PER AMM 30-41-11-710-801. GROUND VERIFICATION IS SUCCESSFUL.Jun 22, 2019 · N481AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2019062419793Warning Message · false activationSIDE WINDOW ACFT RIGHT OVERHEAT LIGHT STAYED OUT AFTER QRH PROCEDURE. GROUNDED - YES. PERFORMED GOOD OPS TEST OF R/H #2 WINDOW PER B737-900 AMM 30-41-00-710-801. COULD NOT DUPLICATE PROBLEM. NO HISTORY PAST 30 DAYS.Jun 21, 2019 · N481AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2019061089648Fmc · malfunctionedLEFT FMC FAILED DURING FLIGHT - 1 MINUTE THEN RETURNED TO NORMAL OPS. GROUNDED - YES. LEFT FMC OPS NML REF B737-900 AMM 34-61-00-710-801.Jun 8, 2019 · N481AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2019060329560Sensor · failedON #2 ENGINE LONG TIME FAULT 75-20832, THE T3 SIGNAL IS OUT OF RANGE, WAS DISCOVERED DURING EEC BITE TEST. DEFERRED PER TASK CARD 78273000. GROUNDED - YES. ALTERNATE DEACTIVATION PROCEDURES USED PER CHAPTER 5, TABLE 3, ITEM 3,4,8,9. REMOVED AND REPLACED #2 ENGMay 30, 2019 · N481AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA201904296168Fmc · malfunctionedFMC L FAILED FOR A FEW MINUTES, DUAL FMC OPS RESTORED. GROUNDED - YES. PERFORMED B737-900 FIM 34-61-836 BOTH FMC'S CHECKS NORMAL OK FOR SERVICE.Apr 25, 2019 · N481AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA201904229080Fmc · malfunctionedDUAL FMC FAILURE AT 1830Z FLIGHT LEVEL 350. FULLY RECOVERED ON ITS OWN. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 836, BOTH FMC'S OP NORMAL.Apr 20, 2019 · N481AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2019041518983Sensor · out of toleranceWHILE PERFORMING T/C 78273000 FOUND #2 ENGINE LONG TIME FAULT # 75-20832 THE T3 SIGNAL IS OUT OF RANGE. GROUNDED - YES. INTERROGATED FMC. F/C ON THE LAST 4 LEGS. REMOVED AND REPLACED ENGINE #2 T3 SENSOR IAW AMM 73-21-07/400. GROUND VERIFICATION TEST IS GOOD.Apr 11, 2019 · N481AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2019040878921Spacer · debondedWHILE ACCOMPLISHING T/C #7847210 NO. 2 ENGINE FOUND 2 EA SPACERS DISBONDED #4 & #21. GROUNDED - YES. REPLACED 2 SPACERS PER T/C 78472000 ON NO.2 ENGINE.Apr 7, 2019 · N481AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2019032028714Module · faultedFWD CABIN ZONE TEMP LIGHT ILLUMINATED AND STAYS ON. CABIN TEMP REMAINED UNDER CONTROL. TRIP RESET DID NOT EXTINGUISHED THE LIGHT. GROUNDED - YES. VERIFIED DESCREP. PERFORMED FIM 21-62 TASK 840, ALL T/S STEPS WITH NO HELP. BOTH PACK/ZONE TEMP CNTLRS BITE WITH NMar 20, 2019 · N481AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2019030228486Probe · out of toleranceENGINE 2 BITE TEST SHOWED: THE T3 SIGNAL IS OUT OF RANGE. MSG NR: 75-20832. LONG TIME FAULT. DEFERRED PER T/C 78273000. GROUNDED - YES. REPLACED S3 PROBE ON NR 2 ENG REF AMM 77-21-01-400-801-F00, EEC TEST NO FAULTS, OPS NML REF AMM 73-21-00-700-804-F00. S3 TEMMar 2, 2019 · N481AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2019030228418Unknown · malfunctionedPRESSURIZATION PANEL BLANK. GROUNDED - YES. RE-CYCLED ACFT ELEC BUSSES. PRESSURIZATION SYSTEM GND TESTS AND OPS CHECK GOOD. REF AMM 21-31-02.Mar 2, 2019 · N481AS · Boeing 737990ER · Cabin Pressure Control SystemSDR ASAA2018120397169Warning Light · false activationDURING TAXI IN AUTOFAIL/ALTN LIGHT ILLUMINATED. GROUNDED - YES. ACCOMPLISHED DCPC BITE PROCEDURE REF B737-900 FIM 21-31 TASK 801. NO. 1 DCPC SHOWS 1 FAULT CODE 011 OFV LRU FAULT. PERFORMED FAULT ISOLATION REF B737-900 FIM 21-31 TASK 802, OPS CK NML.Nov 29, 2018 · N481AS · Boeing 737990ER · Cabin Pressure Control SystemSDR ASAA2018102226581Fmc · malfunctionedTEMPORARY FMC FAILURE ON CAPTAINS SIDE, REGAINED NORMAL OPERATIONS. GROUNDED - YES. PERFORMED FMC BITE PER FIM 34-61 TASK 801 FMC CHECKS OK AIRCRAFT GOOD FOR SERVICE.Oct 22, 2018 · N481AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2018101726507Warning System · false activationIN CRUISE FLIGHT AT FL 350, PRESSURIZATION "AUTO FAIL" AND "ALTN" LIGHTS ILLUMINATED. ACCOMPLISHED CHECKLIST. OPS OK WITH ALTN MODE. GROUNDED - YES. ACCOMPLISHED FIM 21-31 TASK 827. AUTO FAIL RECOVERED. REPAIR CONFIRMATION TEST GOOD REF FIM 21-31 TASK 801 DCPCOct 17, 2018 · N481AS · Boeing 737990ER · Cabin Pressure Control SystemSDR ASAA2018101526466Warning System · false activationFMC ANNUNCIATOR LIGHT ILLUMINATED - VTK ON CAPT NAV DISPLAY NO FMC ON BOTH CDUS ACCOMPLISHED QRH 11-4 FIXED W FMC SELECT IN "BOTH ON R". GROUNDED - YES. ACCOMPLISHED FMC BITE REFERENCE FIM 34-61 TASK 801. LAST FLIGHT LOGGED FMC L "PGM FAULT" NO CURRENT FAULTS Oct 13, 2018 · N481AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2018101026428Control Module · faultyIN FLIGHT, NOTICED THAT THE INDICATOR LIGHTS IN THE PRESSURIZATION CONTROL PANEL WERE ALL BLANK. PRESSURIZATION WORKED NORMAL- NO ISSUES. GROUNDED - YES. DIVERSION TIME 66 MINUTES. REPLACED CABIN PRESS CONT MODULE REF AMM 21-31-02-400-801. OPS CK OK OF PRESS SOct 8, 2018 · N481AS · Boeing 737990ER · Cabin Pressure Control SystemSDR ASAA2018100826398Charger · failed"BAT DISCHARGE" LIGHT ILLUMINATED. GROUNDED - YES. REPLACED MAIN BATTERY CHARGER REF AMM 24-31-21/401 OPERATIONAL TEST OK REF AMM 24-31-21-710-801.Oct 7, 2018 · N481AS · Boeing 737990ER · Battery/Charger SystemSDR ASAA2018100426421Pressure Switch · defectiveAPU FAULT LIGHT, APU SHUTS DOWN AFTER 10 SECONDS. FAULT 49-94299 "STARTER-GENERATOR OIL FILTER BYPASS SHOWS CLOGGED. GROUNDED - YES. ON DEFERRAL. REMOVED STARTER-GENERATOR FILTER HOUSING REF AMM 49-91-12-00-803. REMOVED AND REPLACED OIL FILTER INDICATOR SWITCOct 4, 2018 · N481AS · Boeing 737990ER · APU Oil System
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