N457AS

Service difficulty reports · 308

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 = 'N457AS' 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 ASAA2022041037933Unknown · unknownGOT "SINGLE FMC OPERATION" MESSAGE JUST AFTER LANDING FOR ABOUT 30 SECONDS THEN IT DISAPPEARED. GROUNDED - YES. REF B737-900 FIM 34-61 TASK 807 FOUND PGM FAULT ON R FMC. FAULT WAS INTERMITTENT.Apr 10, 2022 · N457AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2022040637917Aoa · fault messageAFTER PUSHBACK AND ENGINE STARTS R ALPHA VANE CAUTION LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED RESET AND OPS CHECK OF R AOA SENSOR HEATER IAW B737-900 AMM 30-31-00. OPS CHECK GOOD AT THIS TIME.Apr 6, 2022 · N457AS · Boeing 737990ER · Pitot/Static Anti-Ice SystemSDR ASAA2022032237754Computer · inoperativeFMC P/RST LIGHT WILL NOT AUTOMATICALLY EXTINGUISH AFTER A TEST. GROUNDED - YES. REMOVED AND REPLACED #1 FMC. ACCOMPLISHED ALL LLM TESTS AND LRU REPLACEMENT TEST REF B737-900 AMM 34-61-02-000/400-801. FMC P/RST LIGHTS EXTINGUISH AFTER POST. GROUND VERIFICATION Mar 22, 2022 · N457AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2022022037515Heater · leakingPOSSIBLE FUEL LEAK IN #1 ENG AT HMU DRAIN REF L/P 60096874. GROUNDED - YES. PERFORMED ENG VENTS & DRAINS INSPECTION. DRAINS & VENTS NO LEAKS NOTED PER B737-900 AMM 71-71-00-200-801-F00. INSPECTED #1 ENG HMU FOR LEAKS WITH ENGINE RUN. NO LEAK NOTED FROM HMU. FOFeb 20, 2022 · N457AS · Boeing 737990ER · Engine Fuel DistributionSDR ASAA2022011937195Transfer Sys · stuck1 & 2 HF/SAT XFER BUTTON STUCK. GROUNDED - YES. REMOVED & REPLACED HF/SAT PANEL REF B737-900 AMM 23-15-00, OPS NORMAL.Jan 19, 2022 · N457AS · Boeing 737990ER · HF Communications SystemSDR ASAA2022010637100Unknown · unknownON SHUTDOWN APU FAULT LIGHT. GROUNDED - YES. CONFIRMED FAULT CODE 49-61223 STARTED B737-900 FIM 49-60 TASK 812 A - F (4)(F). ACCOMPLISHED CHECK OF WIRE HARNESS (ENGINE), NO FAULTS NOTED, REF FIM 49-60 TASK 812 F. (4)(F)3) AND (5) (A)-(F)1). APU BITE NOT ACCOMPJan 6, 2022 · N457AS · Boeing 737990ER · APU ControlsSDR ASAA2021112236676Blower · inoperativeWEATHER RADAR BLOWER FAN INOP. GROUNDED - YES. REMOVED AND REPLACED WX RADAR MOUNT BLOWER ASSY REF B737-900 AMM 34-43-5. OPS CKS GOOD. WX RADAR OPS CKS GOOD.Nov 22, 2021 · N457AS · Boeing 737990ER · Independent Position Determining SystemSDR ASAA2021111736679Exchanger · inoperativeDURING PREP FOR TOW FOUND #2 ENG MAIN OIL/FUEL HEAT EXCHANGER PAD DRAIN DRIPPING FUEL. GROUNDED - YES. REMOVED AND REPLACED OIL/FUEL HEAT EXCHANGER AND SERVO FUEL HEATER. REF B737-900 AMM 79-21-02 AND 73-11-07. OPS & LK CHECK GOOD.Nov 17, 2021 · N457AS · Boeing 737990ER · Engine Oil Distribution (Airframe Furnished)SDR ASAA2021092836112Unknown · unknownWINDSHEAR GUIDANCE ACTIVATED ON TAKEOFF. POWER/THRUST LEVERS WERE PLACED TO MECHANICAL STOPS FOR LESS THAN 60 SECONDS. GROUNDED - YES. REF B737-900 AMM 34-43-00-710-802-001. NO FAULTS. COULD NOT DUPLICATE. OPS TEST NORMAL.Sep 28, 2021 · N457AS · Boeing 737990ER · Independent Position Determining SystemSDR ASAA2021091735986Unknown · unknownON APPROACH CAPTAINS MCDU BLANKED FOR ABOUT 20 SEC THEN IT RESTARTED TO THE MENU, BUT WITHOUT THE ACARS OPTION. ALSO INTL REQ AT BOTTOM SCREEN AND ACARS NO COM MESSAGE. GROUNDED - YES. ACCOMPLISHED FMC BITE REF B737-900 FIM 34-61 TASK 801 NO INFLIGHT FAULTS NOSep 17, 2021 · N457AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2021082435771Static Inverter · inoperativeELEC LIGHT ILLUMINATED. GROUNDED - YES. REMOVED & REPLACED STATIC INVERTER IAW B737-900 AMM 24-34-21-000-801, 24-34-21-4100-801, 24-34-21-400-801 OPS CHECKS GOOD.Aug 24, 2021 · N457AS · Boeing 737990ER · DC Generating SystemSDR ASAA2021082135769Battery Pack · inoperative3 EMERGENCY EXIT LIGHT IN AFT CABIN INOP. GROUNDED - YES. CHARGED EMERGENCY BATTERIES ANDS OPS CHECKS GOOD IAW B737-900 AMM 33-51-03-960-805.Aug 21, 2021 · N457AS · Boeing 737990ER · Emergency LightingSDR ASAA2021081435737Battery · inoperativeR2 SERVICE DOOR EMERGENCY LIGHTS INOP. GROUNDED - YES. REMOVED, REPLACED AND OP CK GOOD EMERGENCY BATTERY PACK FOR R2 SERVICE DOOR IAW B737-900 AMM 33-51-06-960-805.Aug 14, 2021 · N457AS · Boeing 737990ER · Emergency LightingSDR ASAA2021071935440Wire Harness · faulted#2 ENGINE FIRE DETECTION LOOP B HAS A FAULT LOOP A DOES NOT SHOW A FAULT. GROUNDED - YES. REMOVED AND REPLACED NR 2 ENGINE MW0326 CORE FIRE DETECTOR HARNESS REF B737-900 AMM 26-11-02. ACCOMPLISHED ENGINE FIRE DETECTION OPS CHECK REF AMM 26-11-00-710-801 ALL TJul 19, 2021 · N457AS · Boeing 737990ER · Fire Protection System WiringSDR ASAA2021071535420Oil Cooler · inoperativeREF L/P 60182965 #2 ENG IDG OIL COOLER AND ADG AIR/OIL COOLER REQUIRES REMOVAL AND REPLACEMENT CONTINUE WITH #2 ENG IDG INSTALLATION TEST REF B737-900 AMM 24-11-11 STEP 3(I). GROUNDED - YES. REMOVED AND REPLACED #2 ENG IDG OIL COOLER AND IDG AIR/OIL COOLER IAWJul 15, 2021 · N457AS · Boeing 737990ER · AC Generator-AlternatorSDR ASAA2021071435419Idg · contaminated3 HRS 45 MIN. INTO FLIGHT AT FL 380 THE #2 ENG DRIVEN GENERATOR LIGHT ILLUMINATED THE DRIVE DISCONNECT SWITCH WAS USED TO DISCONNECT THE GENERATURE AND THE APU WAS STARTED AND PUT ON THE BUS. GROUNDED - YES. PERFORMED B737-900 TASK 24-11-11-080-801 FOUND CONTAJul 14, 2021 · N457AS · Boeing 737990ER · AC Generator-AlternatorSDR ASAA2021061435099Blade · damagedPER T/C 78472010 #2 ENG. FAN BLADE, BLADE #12 CU-NI-IN COATING MISSING BEYOND LIMITS. GROUNDED - YES. REMOVED AND REPLACED #2 ENG FAN BLADE #12 AND ITS PAIR #24 PER T/C 78472010.Jun 14, 2021 · N457AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2021061435098Blade · damagedPER T/C 78472010 FAN BLADE LUBE, BLADE #8 CU-NI-IN COATING MISSING BEYOND LIMITS ON #2 ENG. GROUNDED - YES. REMOVED AND REPLACED #2 ENG FAN BLADE #8 AND ITS PAIR #20 PER T/C 78472010, P/N & S/N ENTERED INTO TRAX.Jun 14, 2021 · N457AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2021061435097Blade · damagedPER T/C 78472010 #2 ENG. FAN BLADE LUBE, BLADE #2 CU-NI-IN COATING MISSING BEYOND LIMITS. GROUNDED - YES. REMOVED AND REPLACED #2 ENG FAN BLADE #2 AND ITS PAIR #14 PER T/C 78472010. P/N & S/N ENERED IN TRAX.Jun 14, 2021 · N457AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2021052534910Igniter · inoperativeCHANGE ENG 1 IGNITERS BOTH LEFT AND RIGHT IGNITERS. GROUNDED - YES. R/R ENG 1 IGNITERS BOTH LEFT AND RIGHT IGNITERS REF B737-900 AMM 74-21-02 OPS CK GOOD.May 25, 2021 · N457AS · Boeing 737990ER · Spark Plug/IgniterSDR ASAA2021032834426Compensator · failed#2 FQIS COMPENSATOR PROBE FOUND BAD DURING TSR710603. COMP PROBE OUT OF TOLERANCE AT 60.23 PICO FARADS REF FQIS SYSTEM TEST B737-900 AMM 28-41-00-730-801 AND PROBE TEST AMM 28-41-21/501. GROUNDED - YES. REPLACED #2 COMPENSATOR PROBE IAW B737-900 AMM 28-41-21-Mar 28, 2021 · N457AS · Boeing 737990ER · Fuel Indicating SystemSDR ASAA2021032534420Display · defectiveIAS / MACH WINDOW ON MCP HAS DEFECT. GROUNDED - YES. REMOVED AND REPLACED DFCS MODE CONTROL PANEL IAW B737-900 AMM 22-11-34/401. ACCOMPLISHED DFCS LRU REPLACEMENT TEST FOR MCP REF AMM 22-11-34/501. ALL TESTS PASSED. ACCOMPLISHED LAND VERIFY TEST REF AMM 22-11-Mar 25, 2021 · N457AS · Boeing 737990ER · Autopilot SystemSDR ASAA2021030534247Warning Message · false activationDURING INITIAL CLIMB AND LEFT TURN-OUT, THE LEFT MAIN FUEL QUANTITY ILLUMINATED IMBAL AND SHOWED AN 800# DECREASE IN QUANTITY. WE NOTED BOTH ENGINE FUEL FLOWS WAS MATCHED UP. ALL INDICATED NORMAL. AT LANDING OUR INDICATED OVERBURN WAS EQUAL TO THE INDICATED ERMar 5, 2021 · N457AS · Boeing 737990ER · Fuel Indicating SystemSDR ASAA2020122233741Blade · wornNR 2 ENGINE S/N 658601 BLADE NR 24 S/N DM077597-5 CU-NI-IN COATING WORN BEYOND LIMITS. GROUNDED-YES. REMOVED AND REPLACED BLADE NR 24 AND ITS PAIR NR 12 ON NR 2 ENGINE, REF T/C 78472010.Dec 22, 2020 · N457AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2020122233740Blade · wornNR 2 ENGINE S/N 658601 BLADE NR 19 S/N DM077698-3 CU-NI-IN COATING WORN BEYOND LIMITS. GROUNDED-YES. REMOVED AND REPLACED BLADE NR 19 AND ITS PAIR NR 7 ON NR 2 ENGINE, REF T/C 78472010.Dec 22, 2020 · N457AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2020122233739Blade · wornNR 2 ENGINE S/N 658601 BLADE NR 9 S/N DM048339-T CU-NI-IN COATING WORN BEYOND LIMITS. GROUNDED-YES. REMOVED AND REPLACED BLADE NR 9 AND ITS PAIR NR 21 ON NR 2 ENGINE, REF T/C 78472010.Dec 22, 2020 · N457AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2020122233738Blade · wornNR 2 ENGINE BLADE NR 6 S/N DM047594-B CUN-NI-IN WORN BEYOND LIMITS ENGINE S/N 568601. GROUNDED-YES. REMOVED AND REPLACED BLADE NR 6 AND ITS PAIR NR 18 ON NR 2 ENGINE, REF T/C 78472010.Dec 22, 2020 · N457AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2020122233737Spacer · debondedNR 2 ENGINE S/N 658601 3 FAN BLADE SPACERS DISBONDED ELASTOMERS ON 1 SIDE. GROUNDED-YES. REMOVED AND REPLACED 3 FAN BLADE SPACERS ON NR 2 ENGINE, REF T/C 78472010.Dec 22, 2020 · N457AS · Boeing 737990ER · Turbine Engine Air Inlet SectionSDR ASAA2020102633416Fmc · failedDURING CRUISE THRU FL 290 LT FMC FAILED QH COMPLETED AND PROCEEDED SINGLE FMC (RIGHT FMC OPERATIONS NORMAL). GROUNDED-YES. PERFORMED B737-900 FIM 34-61 TASK 801, NO FAULTS NOTED AT THIS TIME.Oct 26, 2020 · N457AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2020101233345Outflow Valve · faultyON CLIMB OUT PASSING APRROX 8000' OUT OF DFW WE GOT AN AUTO FAIL CABIN PRESSURE LIGHT WITH THE CABIN PRESSURE SWITCH IN ACT, PER MEL 21-14C. MAINTAINING CABIN PRESSURIZATION IN MANUAL MODE WORKED FINE. GROUNDED-YES. ACCOMPLISHED NR 2 DCPC BITE, REF B37-900Oct 12, 2020 · N457AS · Boeing 737990ER · Pressure Regulator/Outflow ValveSDR ASAA2020101133338Outflow Valve · failedGOT AUTOFAIL LIGHT ON CLIMB OUT AROUND 10,000. GROUNDED-YES. REMOVED AND REPLACED AFT OUT FLOW VALVE ASSEMBLY, IN REF TO B737-900 AMM 21-31-03. OPERATIONS CHECK NORMAL THIS CLEARS MEL 21-14C. PUSH IN BREAKER ON P6-4 AUTO 1 BREAKER C/N 10039457 SEAM C SCOTTOct 11, 2020 · N457AS · Boeing 737990ER · Pressure Regulator/Outflow ValveSDR ASAA2020100933326Autopilot Sys · malfunctionedFOLLOWED PROCEDURE FOR HYBRID/HGS APPROACH, NO ANOMALIES OBSERVED UNTIL APPROX 80' AGL. AIRCRAFT DRIFTED TO RIGHT OF CENTERLINE, THEN CORRECTED LEFT OF CENTERLINE. A/C WAS STILL DRIFTING WHEN AP DISCONNECTED MANUALLY. PERFORMED MANUAL LANDING WINDS 130/5. Oct 9, 2020 · N457AS · Boeing 737990ER · Autopilot SystemSDR ASAA2020100833321Outflow Valve · faultedCABIN RATE OF CLIMB INDICATOR MOVING CONSTANTLY BETWEEN + AND - PRESSURE, K UP TO +500, -700 FPM. CABIN DIFF PRESS CONSTANT AND NORMAL. NO PHYSIOLOGICAL EFFECTS. CABIN CLIMB WAS NORMAL AT 10K AND 18K. GROUNDED-YES. REMOVED & REPLACED OUTFLOW VALVE. GROUOct 8, 2020 · N457AS · Boeing 737990ER · Pressure Regulator/Outflow ValveSDR ASAA2020091433175Battery Pack · dischargedAFT EMERGENCY EXIT LIGHTS OUT, GALLEY & CABIN SECTION. GROUNDED - YES. R & R EMERG BATT PACK LOCATION, REF B737-900 AMM 33-51-06. OPS CHECK GOOD.Sep 13, 2020 · N457AS · Boeing 737990ER · Emergency LightingSDR ASAA2020081233024Pump · failedENG 2 PUMP LOW PRESSURE LIGHT ILLUMINATED. QRH CHECKLIST COMPLETE BY TURNING OFF ENG 2 HYD PUMP. GROUNDED - YES. REMOVED & CLEANED PRESSURE SWITCH. NOTED NR 2 ENGINE LOW PRESSURE LIGHT STAYS ILLUMINATED & ENGINE ONLY PRODUCES 90 PSI DURING MOTORING. B737-Aug 12, 2020 · N457AS · Boeing 737990ER · Hydraulic Pump (Electric/Engine), MainSDR ASAA2020072732940Door · unknownFA REPORTED THE L1 DOOR WAS ABNORMALLY DIFFICULT TO OPEN. GROUNDED - YES. ACCOMPLISHED OPERATION OF L1 DOOR IAW AMM 52-11-00. NO DEFECTS NOTED.Jul 23, 2020 · N457AS · Boeing 737990ER · Passenger/Crew DoorsSDR ASAA2020071382887Battery Pack · failedEMERGENCY LIGHTS INOPERATIVE ABOVE 4DF, ROWS 9-13DF. ALSO INOPERATIVE AT DOOR R1 (ALL LIGHTS). RT FWD OVERWING EXIT LIGHT OUTSIDE INOPERATIVE. GROUNDED - YES. SWAPPED COMPLETE POWER SUPPLY IN LIGHTS AT R1 DOOR OPERABLE. SWAPPED UNITS BACK. SUSPECT BATTERY PACJul 8, 2020 · N457AS · Boeing 737990ER · Emergency LightingSDR ASAA2020041332634Pump · damagedDURING #2 ENG SHUTDOWN AFTER 30 MINS RUN FOUND OIL LEAKING FROM ENG APPROX 1 QT. GROUNDED - YES. ACCOMPLISHED ENG VENT & DRAIN INSP OF #2 ENG. DETERMINED LEAK TO BE COMING FROM HYDRAULIC PAD DRAIN AND BEYOND SERVICEABLE LIMITS AFTER AND DURING ENG RUN. REPLACEApr 6, 2020 · N457AS · Boeing 737990ER · Hydraulic Pump (Electric/Engine), MainSDR ASAA2020032032508Unknown · malfunctioned#2 ENGINE CONTROL LIGHT ILLUMINATED ON OVERHEAD PANEL. GROUNDED - YES. PERFORMED EEC BITE TEST, B737-900 FIM 73-00 TASK 801. ONE FAULT FOUND 73-31352 AIRPLANE VOLTAGE INPUT TO EEC. PERFORMED ENGINE RUN. INITIAL EVALUATION FAULT CLEAR. EEC SHOWS NO FAULT. AC OKMar 20, 2020 · N457AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2020022422243Fmc · malfunctionedINTERMITTENT "VTK" ON CAPT SIDE ND. GROUNDED - YES. RAN B737-900 FIM 34-61 TASK #836, CYCLED PWR TO BOTH FMC OPS. RESTORED & BOTH FM'C CHECK OK.Feb 22, 2020 · N457AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2020011621836Transceiver · inoperativeDURING CRUISE, FL 350, WEATHER RADAR FAILED ANNUNCIATED AND ON APPROACH PWS FAILED ANNUNCIATED. GROUNDED - YES. REMOVED AND REPLACED WEATHER RADAR TRANSCEIVER IAW AMM 34-43-41-000-801, AND MM 34-43-41-400-801. PERFORMED WEATHER RADAR SYSTEM OPERATIONAL TEST Jan 12, 2020 · N457AS · Boeing 737990ER · Weather Radar SystemSDR ASAA2019123081714Warning Light · illuminatedRIGHT PACK LIGHT ILLUMINATES WITH RECALL, EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. PERFORMED FIM 21-53 TASK 821 NO FAULTS FOUND. DUE TO 2X HISTORY AFTER RECENT REPLACEMENT OF LT PACK ZONE TEMP CONTROLLER SUSPECTED FAULTY LRU. PLACED THIS ITEM ONDec 28, 2019 · N457AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2019122231673Warning Light · false activationRIGHT PACK LIGHT CAME ON DURING MASTER CAUTION RECALL AND LIGHT WENT OUT ON MASTER CAUTION RE-SET. GROUNDED - YES. PERFORMED FIM 21-53 TASK 821. ON NR 1 AND 2 PACK TEMP CONTROLLERS. ON PACK TEMP CONTROLLERS, NO FAULTS FOUND. ON ''VERIFY" GO" LIGHT ILLUMINATEDDec 22, 2019 · N457AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2019122031671Warning Light · false activationRIGHT "PACK" LIGHT ILLUMINATES DURING MASTER CAUTION RECALL. LIGHT EXTINGUISHES WHEN MASTER CAUTION SYSTEM IS RESET. GROUNDED - YES. PERFORMED FIM 21-53 TASK 821, PACK LIGHT IS ON DURING MASTER CAUTION RECALL. PACK LIGHT ON AIR COND. MODULE P5-10, DOES NOT CODec 20, 2019 · N457AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2019121973638Controller · inoperativeL PACK LIGHT CAME DURING T/O ROLL. ABORTED T/O AT 75-80KTS. GROUNDED - YES. INSPECTED AND FOUND LEFT PACK/ZONE FAULT LIGHT STAYING "ON". WOULD NOT RESET. ATTEMPTED TO PERFORMED BITE PER 21-60-00-700-806-002. NO HELP. ACCOMPLISHED TASK 21-62 TASK 802. CONFIRMEDDec 17, 2019 · N457AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2019112533436Sensor · failedAPU HAS HISTORY OF AUTO SHUT DOWN. GROUNDED - YES. MULTIPLE MAINT MESSAGES SPEED SENSOR 1 SHOWS CIRCUIT FAILURE / SPEED SENSOR 1 SHOWS OPEN CIRCUIT. REF FIM 49-30 TASK 802. NO FOD NOTICED IN INLET OR PLENUM. PERFORMED WIRE HARNESS INSP NO DEFECTS NOTED. PERFORNov 23, 2019 · N457AS · Boeing 737990ER · APU ControlsSDR ASAA2019112521430Heater · inoperativeAUX PITOT LIGHT IN FLIGHT. GROUNDED - YES. CONFIRMED AUX PITOT HEAT INOP - COOL TO TOUCH. REF B737-900 WDM 30-31-12 OPEN FROM PIN 38 TO GND. REMOVED AND REPLACED AUX PITOT PROBE PER B737-900 AMM 34-11-01 OPS NML. LK CK GOOD PER AMM 34-11-00-790-812.Nov 22, 2019 · N457AS · Boeing 737990ER · Pitot/Static Anti-Ice SystemSDR ASAA2019111271283Annunciator · looseF/O A/P/A/T/FMC ANNUNCIATOR 1-2 TEST SWITCH LOOSE. GROUNDED - YES. 16 CIRCUIT BREAKERS PULLED AND COLLARED CLOSED 16 CIRCUIT BREAKERS CLOSED R&R AUTOPILOT ANNUNCIATOR PER B737-900 AMM 22-11-32 PB 401 OPS CHECK GOOD, OK FOR SERVICE.Nov 7, 2019 · N457AS · Boeing 737990ER · Autopilot SystemSDR ASAA2019103131224Ecu · failedAPU FAULT LIGHT ILLUMINATED ON GROUND DOES NOT START. GROUNDED - YES. REMOVED & REPLACED ECU, VERIFIED CORRECT ECU SOFTWARE INSTALLED, PERFORMED OPS TEST NORMAL REF B737-900 AMM 49-61-12, PERFORMED SUCCESSFUL GROUND VERIFICATION CHECK, CLEARS MEL 49-1B.Oct 31, 2019 · N457AS · Boeing 737990ER · APU ControlsSDR ASAA2019102931161Apu · failedAPU CT5ATP TEMPERATURE REMAINS ABOVE 605 DEGREES AFTER ALL TROUBLE-SHOOTING COMPLETED.(#PRI2)ETOPS SIGNIFICANT SYSTEM INSTALLATION TASK AFFECTS APU ON DEMAND IN-FLIGHT START CAPABILITY. UPON COMPLETION CONTACT MAINTENANCE CONTROL AND REPORT THAT THIS TASK HAS Oct 29, 2019 · N457AS · Boeing 737990ER · APU Core Engine
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