N559AS

Service difficulty reports · 540

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 = 'N559AS' 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 ASAA2023020141817Panel · intermittent# 2 HF/SAT XFER LIGHT WILL NOT ILLUMINATE WHEN SWITCH POSITION IS IN THE HF POSITION LIGHT ILLUMINATE DURING LIGHT TEST. GROUNDED - YES. REPLACED HF/SAT TRANSFER PANEL, OPS NML REF B737-800 AMM 23-11-00-710-801 AND REF AMM 23-15-00-730-801.Feb 1, 2023 · N559AS · Boeing 737890 · HF Communications SystemSDR ASAA2023012941736None · faultyLEFT PACK LIGHT ILLUMINATES ON RECALL, LIGHT EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED LH PACK RAM AIR INLET ACTUATOR IAW B737-800 AMM 21-51-21-000/400-801.Jan 29, 2023 · N559AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2023011541779Control Panel · inoperativeMCP IAS/MACH WINDOW WILL NOT CHANGE IN FLIGHT REQUIRING CREW TO FLY RNAV APPROACH. GROUNDED - YES. RMVD AND INSTALLED NEW MCP. REF B737-800 22-11-34.Jan 15, 2023 · N559AS · Boeing 737890 · Autopilot SystemSDR ASAA2022121441135Modulating Valve · faultedAFT CABIN ZONE TEMP ON RECALL - CLEARS WHEN MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED RH AFT TRIM MODULATING VALVE REF B737-800 AMM 21-61-21.Dec 14, 2022 · N559AS · Boeing 737890 · Cabin Temperature Control SystemSDR ASAA2022121141110Sensor · faultedPACK LIGHT ILLUMINATED DURING MC RECALL - RESETS. GROUNDED - YES. VERIFIED L/H PACK LT ON RELAY. PERFORMED PACK TEMP CTRL BITE REF B737-800 FIM 21-62 TASK 801. L/H TEMP CONTROLLER SHOWS RAM AIR ACT FAULT FOR BIT AND PREV FLT. VERIFY TEST PASSED. REMOVED AND REDec 11, 2022 · N559AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2022120941082Actuator · fault messageLH PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL. GROUNDED - YES. PERFORMED PACK TEMPERATURE CONTROL BITE REF B737-800 FIM 21-62 TASK 801. RIGHT PZTC BITE PASSED. LEFT PZTC BITE SHOWED PREV FLT LEFT RAM AIR ACTUATOR FAULT. FAULT CLEARED AND MULTIPLE VERIFY TDec 9, 2022 · N559AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2022101640452Battery Pack · inoperativeFWD RH OVERWING EMERGENCY LIGHT INOP. GROUNDED - YES. REMOVED AND REPLACED M1676 BATTERY PACK S/N 74596 IAW B737-800 AMM 33-51-06-960-805. OPERATIONAL TEST CHECKS GOOD IAW B737-800 AMM 33-51-06-960-805 STEP E.6.Oct 16, 2022 · N559AS · Boeing 737890 · Emergency LightingSDR ASAA2022101640451Battery Pack · inoperativeL4 DOOR AREA EMERGENCY LIGHTS INOP. GROUNDED - YES. REMOVED AND REPLACED M1673 BATTERY PACK S/N 415703 IAW B737-800 AMM 33-51-06-960-805, STEP E.5. OPERATIONAL TEST CHECKS GOOD IAW B737-800 AMM 33-51-06-960-805: STEP E.6.Oct 16, 2022 · N559AS · Boeing 737890 · Emergency LightingSDR ASAA2022081139468Fcu · warning lightSPEED TRIM LIGHT ILLUMINATES ON MASTER CAUTION RECALL. GROUNDED - YES. REMOVED AND REPLACED FCC-B IAW B737-800 AMM 22-11-33.Aug 11, 2022 · N559AS · Boeing 737890 · Autopilot ComputerSDR ASAA2022081039451Fcu · failedFO FD FLAG SHOWS ON PFD. GROUNDED - YES. FCC-B REMOVED AND REPLACED IAW B737-800 AMM 22-11-33.Aug 10, 2022 · N559AS · Boeing 737890 · Autopilot SystemSDR ASAA2022072739251Knob · inaccurateIAS/MACH KNOB INCREASES & DECREASES MACH VALUE MORE THAN COMMANDED FOR EACH CLICK OF THE KNOB. GROUNDED - YES. ACCOMPLISHED MCP OP CHK REFERENCE B737-800 AMM 22-11-34-740-801. NO DEFECTS NOTED OP CHK GOOD.Jul 27, 2022 · N559AS · Boeing 737890 · Autopilot SystemSDR ASAA2022071839151Generator · faultyON PUSHBACK AND AFTER ENGINE START RIGHT SOURCE OFF LIGHT ILLUMINATED WHEN APPLYING IDG. GROUNDED - YES. GROUND RAN #2 ENGINE. ABLE TO DUPLICATE FAULT MANY TIMES. GCU LOGGED FEEDER FAULT. NOT ABLE TO RESET. REF B737-800 FIM 24-21 TASK 801. ACCOMPLISHED FIM 24-Jul 18, 2022 · N559AS · Boeing 737890 · Alternator-Generator DriveSDR ASAA2022071639076A/C Pack · warning lightLEFT PACK LIGHT ILLUMINATED ON MASTER CAUTION RECALL CANCELED ON RESET. GROUNDED - YES. PERFORMED PACK TEMP CTRL BITE IAW B737-800 FIM 21-62 TASK 801. L/H TCV LIGHT LIT FOR PREVIOUS FLIGHT. MULTIPLE VERIFY TESTS OK, FAULTS CLEARED.Jul 16, 2022 · N559AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2022061938713Satcom · inoperativeSATCOM INOP. GROUNDED - YES. RESET SYSTEM, OPS CHECK GOOD IAW B737-800 AMM 23-15-00-730-801.Jun 19, 2022 · N559AS · Boeing 737890 · HF Communications SystemSDR ASAA2022061238638Fmc · misinstalledAFTER TAKEOFF SPEEDBUG WOULD NOT FOLLOW LOADED SPEED IN FMC WITH VNAV ENGAGED AND INDICATING. DURING CRUISE RECEIVED:VNAV PERF - INVALID". NOTICED LOST INDEX ON PERF PAGE WAS ERASED. ENTERED PLANNED LOST INDEX AND RESUMED NORMAL OPERATION. GROUNDED - YES. PERJun 12, 2022 · N559AS · Boeing 737890 · Flight Management Computing Hardware SystemSDR ASAA2022052538516Power Supply · inoperativeEMERGENCY LIGHT SYSTEM BATTERY PACK M1674 AND M1675 FAILED CAPACITY CHECK. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLY AND INSTALLATION TEST GOOD FOR M1674 AND M1675 IAW B737-800 AMM 33-51-06-960-806.May 25, 2022 · N559AS · Boeing 737890 · Emergency LightingSDR ASAA2022050338348Transition Panel · corrodedAFT PIT L/H TRANSITION PANEL STA 727I+15 - STA 727J +10 HAS CORROSION DOT:N267. GROUNDED - YES. EVALUATED AFT PIT L/H TRANSITION PANEL STA 727I+15 - STA 727J+10ORIGINAL THICKNESS .040" REMOVED .019" MATERIAL REMAINING .021"AND FOUND TO BE OUT OF LIMITS PER B7May 3, 2022 · N559AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022050338279Transition Panel · corrodedAFT PIT R/H TRANSITION PANEL STA 747+10 - STA 767 HAS CORROSION. DOT:N268. GROUNDED - YES. EVALUATED AFT PIT RH TRANSITION PANEL STA 747+10 - STA 767.ORIGINAL THICKNESS .040" PER BAC DWG 1496-377.MAT' REMOVED .018" MAT' REMAINING .022"OUT OF LIMITS PER B737-80May 3, 2022 · N559AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022050338278Shield · corrodedAFT PIT SHIELD SUPPORT STA 767-787+5 HAS CORROSION DOT:N272. GROUNDED - YES. REMOVED SHIELD IAW ASA B737-800 SRM 51-40-02.RECIEVED NEW SHIELD P/N 146A8127U12 PO# 1031235.2LOCATED, DRILLED AND COUNTERSUNK IAW BAC DWG 146A8127 AND ASA B737-800 SRM 51-40-08-0G-0May 3, 2022 · N559AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022050338277Transition Panel · corrodedAFT PIT R/H TRANSITION PANEL STA 727B+10 - STA 727F+10 HAS CORROSION DOT N269. GROUNDED - YES. EVALUATED AFT PIT R/H TRANSITION PANEL STA 727B+10 - STA 727F+10,ORIGINAL THICKNESS .040" PER BAC DWG 1496-377, MAT' REMOVED .019", MAT' REMAINING .021" OUT OF LIMIMay 3, 2022 · N559AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022050338276Transition Panel · corrodedAFT PIT L/H TRANSITION PANEL STA 747+5 -STA 847 HAS CORROSION DOT N271. GROUNDED - YES. EVALUATED AFT PIT L/H TRANSITION PANEL 747+5 - STA 847. ORIGINAL THICKNESS .040". REMOVED .019"MATERIAL REMAINING .021"AND FOUND TO BE OUT OF LIMITS PER B737-800 SRM 53-00May 3, 2022 · N559AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022050338275Transition Panel · corrodedAFT PIT L/H TRANSITION PANEL STA 727F+10 - STA727H+5 HAS CORROSION DOT:N266. GROUNDED - YES. EVALUATED AFT PIT L/H TRANSITION PANEL STA 727F+10 - STA 727H+5.ORIGINAL THICKNESS .040".REMOVED .021". MATERIAL REMAINING .019"AND FOUND TO BE OUT OF LIMITS PER B737May 3, 2022 · N559AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022050338274Transition Panel · corrodedAFT PIT L/H TRANSITION PANEL STA 727+4 - STA 727E+10 HAS CORROSIONDOT N270. GROUNDED - YES. EVALUATED AFT PIT L/H TRANSITION PANEL STA 727+4 - STA 727E-10.ORIGINAL THICKNESS .040",REMOVED .019", MATERIAL REMAINING .021"AND FOUND TO BE OUT OF LIMITS PER B737-80May 3, 2022 · N559AS · Boeing 737890 · Fuselage Main, StructureSDR ASAA2022050138517Floorbeam · corrodedAFT WET AREA: STA. 986 FLOORBEAM HAS CORROSION AT FASTENER HOLES. MARKED IN RED. GROUNDED - YES. REMOVED CORROSION AND EVALED. ORIG T .150", REMOVED .009", REMAIN T .141" FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1 FABRICATED NEW REPAIR PARTS (1 EMay 1, 2022 · N559AS · Boeing 737890 · Fuselage Main, Floor BeamSDR ASAA2022050138384Floorbeam · corrodedSTA 947.5 FLOORBEAM, BUTTLINE 45R HAS CORROSION. GROUNDED - YES. EVALUATED CORROSION.ORIGINAL T .180"T REMOVED .028"T REMAIN .152"FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1.REMOVED CORRODED SECTION AND SURROUNDING STRUCTURE IAW B737-800 SRM 51-40May 1, 2022 · N559AS · Boeing 737890 · Fuselage Main, Floor BeamSDR ASAA2022030637638Pressure Switch · faultyDURING PREFLIGHT CHECK, LEFT AFT FUEL PUMP LIGHT ILLUMINATED DIMLY. WHEN TURNED OFF, ILLUMINATED BRIGHT. GROUNDED - YES. REF B737-800 FIM 28-22 TASK 803 STEP H BOOST PUMP DOES NOT OPERATE, UPON REMOVING CONNECTOR D868 LOW PRESSURE LIGHT EXTINGUISHED. REMOVED &Mar 6, 2022 · N559AS · Boeing 737890 · Fuel Indicating SystemSDR ASAA2022022637568Unknown · unknownLEFT FWD WINDOW OVERHEAT LIGHT ILLUMINATED IN FLIGHT. WOULD NOT RESET. GROUNDED - YES. FOUND C/B FOR LT FWD WINDOW HEAT POWER ON P6-11 POPPED. RESET C/B IAW B737-800 AMM 20-60-01. NO DEFECTS NOTED. PERFORMED WHCU SYSTEM TEST IAW AMM 30-41-11. NO DEFECTS NOTED.Feb 26, 2022 · N559AS · Boeing 737890 · Windshield/Door Rain/Ice RemovalSDR ASAA2022021237438Window · damagedAFTER PUSHBACK, LH FWD WINDOW HEAT OVERHEAT ILLUMINATED, RAN QRH. UPON COMPLETION OF QRH, CA FWD WINDSCREEN SHATTERED. GROUNDED - YES. REMOVED & REPLACED #1 WINDOW PER B737-800 AMM 56-11-11. ACCOMPLISHED CABIN PRESSURE LEAK PER AMM 05-51-91-790-801. WINDOW HEAFeb 12, 2022 · N559AS · Boeing 737890 · Windshield/Door Rain/Ice RemovalSDR ASAA2022012937280Unknown · unknownLEFT (1) PACK LIGHT ILLUMINATES ON RECALL. GROUNDED - YES. ACCOMPLISHED PACK TEMP CONTROL BITE PROCEDURE AND RESET OF LEFT PACK TCV REF B737-800 FIM 21-62 TASK 801 OPS CHECK GOOD.Jan 29, 2022 · N559AS · Boeing 737890 · Cabin Cooling SystemSDR ASAA2022011937196Charger · inoperativeFOUND "ELEC" LIGHT ILLUMINATED ON OVERHEAD PANEL. GROUNDED - YES. P5-13 ELEC LIGHT BITE SHOWS "AUX BAT CHGR INOP" REMOVED AND REPLACED AUX BAT CHGR M3055 IAW B737-800 AMM 24-31-31/401. ELEC PANEL BITE TEST OK.Jan 19, 2022 · N559AS · Boeing 737890 · DC Generating SystemSDR ASAA2022011937190Idg · leakingFOLLOW-UP TO #1 IDG CONTINUED FREQUENT SERVICING. (IDG R&R) ******** ETOPS SIGNIFICANT SYSTEM ******** GROUNDED - YES. R/R #1 ENG IDG IAW B737-800 AMM 24-11-11/PB400. PERFORMED OPERATIONAL CHECK . TEST OK. IDG OK FOR SERVICE.Jan 19, 2022 · N559AS · Boeing 737890 · Alternator-Generator DriveSDR ASAA2022010337063Valve · stuckON DESCENT WITH THRUST LEVERS IN FLIGHT IDLE NO 2 ENGINE ANTI-ICE WAS SELECTED ON, BUT THE VALVE FAILED TO OPEN, THE BLUE "COWL VALVE OPEN" LIGHT TURNED BRIGHT BLUE, BUT NEVER DIMMED. THE NO 2 ENGINE ANTI-ICE SWITCH WAS CYCLED 3 TIMES. ON THIRD ATTEMPT, THE VAJan 3, 2022 · N559AS · Boeing 737890 · Air Intake Anti/De-Ice SystemSDR ASAA2021122036967Unknown · unknownFMC DISAGREE DISPLAYED ON BOTH MCDU'S ON TAXI IN. GROUNDED - YES. L/H FMC HISTORY SHOWS PGM FAULT CAUSED DISAGREE. REBOOTED L/H FMC COMPUTER. BITE TEST OK REF V737-800 FIM 34-61 TASK 807 & 34-61 TASK 835. NORM OPS RESTORED.Dec 20, 2021 · N559AS · Boeing 737890 · Flight Management Computing Hardware SystemSDR ASAA2021120236777Light · inoperativeEMERGENCY EXIT AFT RT ESCAPE SLIDE LT INOP. GROUNDED - YES. RELAMPED AFT RT ESCAPE SLIDE EMERGENCY EXIT LT, OPS CHECKS OK. REF B737-800 AMM 33-51-04.Dec 2, 2021 · N559AS · Boeing 737890 · Emergency LightingSDR ASAA2021112536742Shim · damaged#2 ENG FAN BLADE SHIMS MISSING COATING (MOLYDAG) ALL SHIMS. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE FAN BLADE SHIMS REF T/C 78472010.Nov 25, 2021 · N559AS · Boeing 737890 · Turbine Engine Air Inlet SectionSDR ASAA2021111236613Control Panel · inoperativeACFT VERT SPEED SELECTOR WHEEL INOP. GROUNDED - YES. REMOVED AND REPLACED DFCS MODE CONTROL PANEL PER B737-800 MM 22-11-34-000-801 / AMM 22-11-34-400-801. PERFORMED DFCS GROUP #32 (MCP LRU REPLACEMENT) TEST PER AMM 22-11-34-740-801 AND DFCS GROUP #49 (LAND VERNov 12, 2021 · N559AS · Boeing 737890 · Autopilot SystemSDR ASAA2021110436529Unknown · unknownHF1 PANEL DISPLAYS FAIL ON BOTH ACTIVE AND STANDBY PANELS. CAN SELECT FREQUENCY AND HAD A POSITIVE SELCAL CHECK. GROUNDED - YES. CYCLED CIRCUIT BREAKER FOR HFI RADIO PER B737-800 AMM 20-60-05-800-80. 1PERFORMED HF1 OPERATIONAL CHECK PER AMM 23-11-00-710-801OPSNov 4, 2021 · N559AS · Boeing 737890 · HF Communications SystemSDR ASAA2021100836229Tube · damagedON CLIMB OUT DUCT PRESSURE SPLIT RIGHT PRESSURE FLUCTUATED 40-45 PSI, LEFT PRESSURE PEGGED @ 80 PSI. ON CLIMB PHYSIOLOGICAL SENSING IN EARS WITH A PULSING SENSATION. GROUNDED - YES. DIVERSION TIME 38 MINUTES - ACCOMPLISHED NO. 1 ENG BLEED AIR SYSTEM HEALTH CHEOct 8, 2021 · N559AS · Boeing 737890 · Pneumatic Distribution SystemSDR ASAA2021090935925Bulb · inoperativeLIGHT BULB BURNT OUT IN VNAV ON MCP. GROUNDED - YES. REMOVED AND REPLACED MODE CONTROL PANEL IAW B737-800 AMM 22-11-34-000-801 AND 22-11-34-400-801, OPS CHECK GOOD. LRU REPLACEMENT TEST FOR MCP BITE TEST GROUP #32 GOOD IAW AMM 22-11-34/501 AND LAND VERIFY TESTSep 9, 2021 · N559AS · Boeing 737890 · Autopilot SystemSDR ASAA2021072335501Oil System · leaking#2 ENG OIL LEAK BOTTOM ENG COWL AND GROUND. GROUNDED - YES. OPENED #2 ENG COWL LEAK APPEARS TO BE COMING FROM STARTER QUAD RING. REMOVED AND REPLACED #2 ENG STARTER QUAD ADAPTER PACKING REF B737-800 AMM 80-11-02-400-801-F00. REINSTALLED STARTER REF AMM 80-11-0Jul 23, 2021 · N559AS · Boeing 737890 · Turbine Engine Oil SystemSDR ASAA2021072235472Filter · cloggedWHILE ACCOMPLISHING TASK CARD N8349002 (APU GENERAL VISUAL INSPECTIONS) FOUND RED BUTTON ON THE APU OIL FILTER INDICATOR EXTENDED. GROUNDED - YES. REMOVED AND REPLACED LUBE FILTER ELEMENT PER B737-800 AMM 49-91-12, LEAK CHK GOOD, OK FOR SERVICE.Jul 22, 2021 · N559AS · Boeing 737890 · APU Oil SystemSDR ASAA2021062435189Igniter · damaged2 FAILED ENGINE START ENGINE #2 - NO LIGHT OFF AFTER START LEVER TO IDLE, WITH FUEL FLOW. GROUNDED - YES. NO RECENT FAULTS #2 ENG L EEC CH A L EEC CH B. COMPLETED IGNITION SYSTEM AUDIBLE TEST REF B737-800 AMM 74-00-00-750-801-F00. FOUND L/H IGNITER TO HAVE FAIJun 24, 2021 · N559AS · Boeing 737890 · Spark Plug/IgniterSDR ASAA2021062335160Computer · faultedON APPROACH FO'S FLIGHT DIRECTOR DISAPPEARED AND THE AUTOPILOT DISENGAGED AT VOR/LOC CAPTURE WITH APP ARMED. CYCLED FDS BUT UNABLE TO REESTABLISH FO'S FD. GROUNDED - YES. ACCOMPLISHED DFCS LAND VERIFY TEST REF B737-800 AMM 22-11-00, HGS SYSTEM TEST REF HGS 400Jun 23, 2021 · N559AS · Boeing 737890 · Autopilot SystemSDR ASAA2021061935118Knob · intermittentF/O DCP ALTIMETER ADJUSTMENT KNOB INTERMITTENTLY ADJUST MORE THAN COMMANDED. GROUNDED - YES. PERFORMED DCP ALTIMETER ADJUSTMENT KNOB TEST PER B737-800 AMM 22-11-34. COULD NOT DUPLICATE FAULT. OPS CHECK OK.Jun 19, 2021 · N559AS · Boeing 737890 · Autopilot SystemSDR ASAA2021043034721Connector · arcedELECTRICAL CONNECTION FOR THE RIGHT FWD WINDSHIELD HEAT WAS SPARKING WHEN TURNED ON. GROUNDED - YES. REMOVED AND REPLACED FOR R1 WINDOW REF B737-800 AMM 56-11-11. OPS CHECK GOOD. A/C OK FOR SERVICE.Apr 30, 2021 · N559AS · Boeing 737890 · Ice/Rain Protection System WiringSDR ASAA2021042634682Radar · malfunctionedFALSE RADAR RETURNS APPEARING ON CAPTAIN'S RADAR. F/O'S RADAR DOESN'T SHOW SAME RETURNS. GROUNDED - YES. ONLY CAPTAIN'S SIDE REPORTED AT FAULT, NOT F/O'S SIDE. RADAR SYSTEM CHECKED GOOD ON GROUND IAW B737-800 AMM 34-43-00-710-802. PERFORMED DEU #1 BITE CHECK IApr 26, 2021 · N559AS · Boeing 737890 · Independent Position Determining SystemSDR ASAA2021040334494Radar · malfunctionedWX RADAR WILL NOT DISPLAY ON CAPT SIDE. GROUNDED - YES. ACCOMPLISHED WXR OPERATIONAL TEST B737-800 AMM 34-43-00-710-802-001 TWICE, BOTH TIMES TESTED NORMAL, NO FAULTS FOUND. ACCOMPLISHED WXR BITE B737-800 FIM 34-43 TASK 801, BOTH TIMES OPS TEST GOOD, NO FAULTSApr 3, 2021 · N559AS · Boeing 737890 · Weather Radar SystemSDR ASAA2021031534298Hook · wornWHILE ACCOMP TC CMPT 72EO -02015-3 #1 ENG ESN 894137 STAGE 3 VSV AFT SIDE J HOOK WORN COMPLETELY THROUGH @ 12 OCLOCK POSITION. GROUNDED - YES. ON DEFERRAL.Mar 15, 2021 · N559AS · Boeing 737890 · Turbine Engine Compressor SectionSDR ASAA2021021134080Control Panel · faultedMCP HEADING READ OUT UNREADABLE. GROUNDED - YES. CONFIRMED FAULT, MCP HDG DIGITS UNREADABLE. REMOVED & REPLACED MCP REF B737-800 AMM 22-11-34. PULLED & RESET 9 TOTAL C/BS. ACCOMPLISHED MCP TEST REF AMM 22-11-34-740-801, LRU REPLACEMENT TEST FOR MCP (GP 32) REFFeb 11, 2021 · N559AS · Boeing 737890 · Autopilot SystemSDR ASAA2021020233999Sensor · malfunctionedRIGHT FORWARD WINDOW OVERHEAT LIGHT ILLUMINATED IN FLIGHT. GROUNDED - YES. PERFORMED WINDOW HEAT CONTROL UNIT BITE PROCEDURE, FOUND WINDOW SENSOR FAULT. REF B737-800 FIM 30-41 TASK 801. ALSO PERFORMED WINDOW SENSOR FAULT LIGHT FOR WINDSHIELD IS ON. PLACED FAULFeb 2, 2021 · N559AS · Boeing 737890 · Windshield/Door Rain/Ice Removal
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