N477AS

Service difficulty reports · 175

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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 = 'N477AS'
  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 ASAA2026071967477Light · detachedFA REPORTS LIGHT FROM CEILING FELL OUT AND IS DANGLING (EMERGENCY LIGHT). GROUNDED - YES. REMOVED, REPLACED, AND TESTED EMERGENCY LIGHT AISLE LIGHT ABOVE ROW 25 RIGHT PER AMM 33-51-03-960-805 - OPS NORMAL.Jul 19, 2026 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2025061558784Lens · missingEMERGENCY LIGHT ON CEILING NEAR ROW 21 MISSING COVER. GROUNDED - YES. EMERGENCY EXIT AISLE LIGHT AT ROW 21 LENS REPLACED REF AMM 33-51-03-960-803. ALL OPS CHECKS GOOD.Jun 15, 2025 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2025020655849Door · unknownFA'S REPORT L1 DOOR DIFFICULT TO OPEN AND CLOSE. GROUNDED - YES. CLOSED FWD ENTRY DOOR, NO FAULTS NOTED. OPENED FWD ENTRY DOOR, NO FAULTS NOTED REF AMM 52-11-00/201 REF FIM 52-10 TASK 807 CONDUCTED FWD ENTRY DOOR CHECK GVI WITHOUT REMOVAL OF DOOR LINING, NO FAFeb 6, 2025 · N477AS · Boeing 737990ER · Passenger/Crew DoorsSDR ASAA2024120354283Power Supply · no testEMERGENCY LIGHTS ASSOCIATED WITH BATTERY PACK M2626 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M2626 AND OPS CHECK GOOD IAW B737 AMM 33-51-06. (S/N 103438)Dec 3, 2024 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2024120354262Power Supply · no testEMERGENCY LIGHTS ASSOCIATED WITH BATTERY PACK M1695 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK SUPPLY M1695 S/N 123358 AND OPERATIONAL TEST PERFORMED SUCCESSFULLY IAW B737-900 AMM 33-51-06-960-806.Dec 3, 2024 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2024120354261Power Supply · no testEMERGENCY LIGHTS ASSOCIATED WITH BATTERY PACK M1676 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M1676 S/N 24289 AND OPS CHECK GOOD IAW B737 AMM 33-51-06.Dec 3, 2024 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2024120354260Power Supply · no testEMERGENCY LIGHTS ASSOCIATED WITH BATTERY PACK M2335 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK M2335 S/N 122986 AND OPERATIONAL TEST PERFORMED SUCCESSFULLY IAW B737-900 AMM 33-51-06-960-806.Dec 3, 2024 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2024111554258Web · corrodedAFT CARGO PIT THRESHOLD WEB HAS MULTIPLE SPOTS OF CORROSION. GROUNDED - YES. REMOVED CORROSION FROM AFT CARGO PIT THRESHOLD WEB. ORIG .050",REMOVED.007" REMAINING .043. FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-60-15-1A-1. REMOVED WEB IAW B737-900 SRM 51-4Nov 15, 2024 · N477AS · Boeing 737990ER · Fuselage Miscellaneous StructureSDR ASAA2024111554257Web · corrodedFWD CARGO PIT THRESHOLD WEB HAS MULTIPLE SPOTS OF CORROSION. GROUNDED - YES. REMOVED CORROSION ORIGINAL MATERIAL THICK .045" REMOVED .009" REMAINING .036" FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-30-15-1A-1. LOCATED AND DRILLED NEW FWD CARGO DOOR THRESHNov 15, 2024 · N477AS · Boeing 737990ER · Fuselage Main, StructureSDR ASAA2024111254284Doubler · gougedWATER SERVICE DOOR AFT LATCH CONTACT AREA ON INTERNAL SURFACE OF CUTOUT IS GOUGED. GROUNDED - YES. REMOVED AND REPLACED WATER SERVICE DOOR DOUBLER AND COMPLIED WITH EA900ER-53EA-27894 REPAIR.Nov 12, 2024 · N477AS · Boeing 737990ER · Fluid Service DoorsSDR ASAA2024111054282Power Supply · no testEMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M2816 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M2816 AND OPERATIONAL TEST PERFORMED SUCCESSFULLY IAW B737-900 AMM 33-51-06-960-806. (S/N 125216)Nov 10, 2024 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2024111054281Power Supply · no testEMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M2627 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M2627 AND OPS CHECK GOOD IAW B737 AMM 33-51-06. (S/N 124217)Nov 10, 2024 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2024111054259Power Supply · no testEMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M1675 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M1675 AND OPERATIONAL TEST PERFORMED SUCCESSFULLY IAW B737-900 AMM 33-51-06-960-806. (S/N 123887)Nov 10, 2024 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2024081751916Battery Pack · dischargedDURING T/C 78233008, FOUND R2 DOOR OVERDOOR EXIT SIGN & EXIT INDICATOR SIGN INOP. GROUNDED - YES. REMOVED & REPLACED EMERGENCY LIGHTING BATTERY PACK PER AMM 33-51-06. OPS CHECK NORMAL PER AMM 33-51-00.Aug 17, 2024 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2024011047256Power Supply · no testWHILE PERFORMING T/C 78233001, AFT GALLEY LH EMERGENCY LIGHTS FAILED CAPACITY CHECK. GROUNDED - YES. REPLACED AFT GALLEY L/H EMERGENCY LIGHT BATTERY PACK PER AMM 33-51-06, OPS NORMAL. GROUND VERIFICATION SUCCESSFUL.Jan 10, 2024 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2023091345130Unknown · unknownAFTER ENG START FWD + R SIDE WINDOW OVERHEAT LIGHTS ILLUMINATED GROUNDED - YES. RESET PER QRHSep 13, 2023 · N477AS · Boeing 737990ER · Windshield/Door Rain/Ice RemovalSDR ASAA2023073144326Power Supply · malfunctionedPER TASK CARD 78233008 " EMERGENCY LIGHTS" CHECK FOUND 2 L/H OVER WING EMERGENCY SLIDE LIGHTS INOP. GROUNDED - YES. RELAMPED INOP BULBS PER AMM 33-51-04. NO HELP. REMOVED AND REPLACED BATTERY PACK M1670 PER AMM 33-51-06. OPS CHECK NORMAL. ITEM OKAY FOR SERVICEJul 31, 2023 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2023062943851Unknown · unknownWHILE COMPLETING TASK CARD 78273000 FOUND #2 ENG FAULT CODE 73-11272 THE ALTERNATOR VOLTAGE INPUT TO THE EEC OUT OF RANGE SHORT TIME FAULT. GROUNDED - YES. ON DEFERRAL.Jun 29, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023061943699Unknown · unknown#2 ENG HAS FAULT 75-10832 T3 SIGNAL IS OUT OF RANGE. GROUNDED - YES. ON DEFERRAL.Jun 19, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023061533572Unknown · unknownIN CRUISE FL340, A AUTOPILOT KICKED OFF IN SMOOTH AIR. A AUTOPILOT REENGAGED NORMAL. GROUNDED - YES. ACCOMPLISHED LAND VERIFY TEST. TEST NORMAL. REF B737-900 AMM 22-11-00-700-801. ETOPS GROUND VERIFICATION GOOD.Jun 13, 2023 · N477AS · Boeing 737990ER · Auto Flight SystemSDR ASAA2023060843495Unknown · unknownSATCOM LOCKOUT GROUNDED - YES. SATCOM LOCKOUT QRH PROCEDURE SUCCESSFULLY PERFORMED.Jun 8, 2023 · N477AS · Boeing 737990ER · HF Communications SystemSDR ASAA2023060743494Unknown · unknownSATCOM LOCK-UP. GROUNDED - YES. PERFORMED SATCOM LOCK-UP CB RESET PROCEDURE PER QRH. CPDLC WAS RESTORED AFTER 25 MINUTES.Jun 7, 2023 · N477AS · Boeing 737990ER · HF Communications SystemSDR ASAA2023053143451Heat Exchanger · leaking#2 ENGINE HAS FUEL DRIPPING FROM IT. GROUNDED - YES. ACCOMPLISHED IDLE LEAK CHECK AND FOUND FUEL DRIPPING FROM MAIN FUEL/OIL HEAT EXCHANGER AT 9 DPM. REMOVED AND REPLACED #2 ENGINE FUEL/OIL HEAT EXCHANGER IAW B737-900 AMM 79-21-02. LEAK CK GOOD.May 31, 2023 · N477AS · Boeing 737990ER · Engine Fuel and ControlSDR ASAA2023052843415Sensor · failedWHILE ACCOMPLISHING ASA T/C 78273000 ENG2 BITE TEST RECENT FAULTS LONG TIME MSG NBR : 75-10832 THE T3 SIGNAL IS OUT OF RANGE FLT LEG 0,1 & 3 WAS SEEN. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 75-33 TSK 802, T3 SIGNAL OUT OF RANGE FAULT ISOLATION. PER FIM REMOMay 28, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050843564Sensor · failedWHILE PERFORMING ASA T.C. 78273000, #2 ENGINE HAS LONG TIME FAULT 75-10832. THE T3 SIGNAL IS OUT OF RANGE ON MULTIPLE LEGS IN HISTORY. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 75-33 TSK 802, T3 SIGNAL OUT OF RANGE FAULT ISOLATION. PER FIM REMOVED AND REPLACEDMay 8, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050343116Eec · faultyWHILE PERFORMING TASK CARD 78273000, #2 ENG HAS LONG TIME FAULT 77-20862, THE BOTTOM LEFT EGT SINGAL (T495S3) IS OUT OF RANGE ON 2 LEGS. GROUNDED - YES. REMOVED #2 ENG EEC REF B737-900 AMM 73-21-60. COMPLETED REMOVAL OF J10 HARNESS REF AMM 73-21-06. INSTALLED May 3, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050343115Eec · faultyWHILE PERFORMING ASA TASK CARD 78273000, #2 ENG HAS LONG TIME FAULT 77-20872, THE TOP LEFT EGT SINGAL (T495S4) IS OUT OF RANGE ON 2 LEGS. GROUNDED - YES. REMOVED #2 ENG EEC REF B737-900 AMM 73-21-60. COMPLETED REMOVAL OF J10 HARNESS REF AMM 73-21-06. INSTALLEDMay 3, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050343114Eec · faultyWHILE PERFORMING TASK CARD 78273000 #2 ENG HAS ECONOMIC FAULT 75-20362 THIS HPTACC POSITION SIGNAL IS OUT OF RANGE ON 2 LEGS. GROUNDED - YES. REMOVED #2 ENG EEC REF B737-900 AMM 73-21-60. COMPLETED REMOVAL OF J10 HARNESS REF AMM 73-21-06. INSTALLED J10 HARNESSMay 3, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050343113Eec · faultyWHILE PERFORMING T.C. #78273000, #2 ENG HAS LONG TIME FAULT 75-20832, THE T3 SIGNAL IS OUT OF RANGE, ON 2 LEGS. GROUNDED - YES. REMOVED #2 ENG EEC REF B737-900 AMM 73-21-60. COMPLETED REMOVAL OF J10 HARNESS REF AMM 73-21-06. INSTALLED J10 HARNESS REF AMM 73-21May 3, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050343112Eec · faultyWHILE PERFORMING T.C. #78273000, #2 ENG HAS LONG TIME FAULT 75-20822, THE T25 SIGNAL IS OUT OF RANGE, ON 2 LEGS. GROUNDED - YES. REMOVED #2 ENG EEC REF B737-900 AMM 73-21-60. COMPLETED REMOVAL OF J10 HARNESS REF AMM 73-21-06. INSTALLED J10 HARNESS REF AMM 73-2May 3, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050343111Eec · faultyWHILE PERFORMING T.C. 78273000, #2 ENG HAS LONG TIME FAULT 75-20592 THE TBV POSITION SIGNAL IS OUT OF RANGE, ON 2 LEGS. GROUNDED - YES. REMOVED #2 ENG EEC REF B737-900 AMM 73-21-60. COMPLETED REMOVAL OF J10 HARNESS REF AMM 73-21-06. INSTALLED J10 HARNESS REF AMay 3, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050343110Eec · faultyWHILE PERFORMING T.C. # 78273000, #2 ENG HAS LONG TIME FAULT 75-20442, THE VBV POSITION SIGNAL IS OUT OF RANGE, ON 2 LEGS. GROUNDED - YES. REMOVED #2 ENG EEC REF B737-900 AMM 73-21-60. COMPLETED REMOVAL OF J10 HARNESS REF AMM 73-21-06. INSTALLED J10 HARNESS REMay 3, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050343109Eec · faultyWHILE PERFORMING T.C. # 78273000, #2 ENG HAS LONG TIME FAULT 75-10832, THE T3 SIGNAL IS OUT OF RANGE, ON MULTIPLE LEGS IN HISTORY. GROUNDED - YES. REMOVED #2 ENG EEC REF B737-900 AMM 73-21-60. COMPLETED REMOVAL OF J10 HARNESS REF AMM 73-21-06. INSTALLED J10 HAMay 3, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050343108Eec · faultyWHILE PERFORMING T.C. #782730000, #2 ENG HAS ECONOMIC FAULT 75-20542, THE LPTACC POSITION SIGNAL IS OUT RANGE, ON 2 LEGS. GROUNDED - YES. REMOVED #2 ENG EEC REF B737-900 AMM 73-21-60. COMPLETED REMOVAL OF J10 HARNESS REF AMM 73-21-06. INSTALLED J10 HARNESS REFMay 3, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050343107Eec · faultyWHILE PERFORMING ASA T.C. #78273000, #2 ENG HAS FAULT 75-20392, THE VSV POSITION SIGNAL IS OUT OF RANGE, ON 2 LEGS IN HISTORY. LONG TIME. GROUNDED - YES. REMOVED #2 ENG EEC REF B737-900 AMM 73-21-60. COMPLETED REMOVAL OF J10 HARNESS REF AMM 73-21-06. INSTALLEDMay 3, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050243106Unknown · unknownON TAXI IN #2 EEC ENGINE CONTROL LIGHT ILLUMINATED. GROUNDED - YES. EEC BITE LOGGED FAULT 75-30832 T3 SIGNAL OUT OF RANGE GVI ENG 2 EEC FOUND T3 CONNECTOR AND J10 LOOSE. REMOVED 8 GV1 CONNECTOR- NO DEFECTS NOTED RECONNECTED & TEST OD EEC OKAY REF B737-900 FIM May 2, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023050143089Fuel Heater · leakingDURING ACTUATORS TEST ON ENGINE 2 FOUND SERVO FUEL HEATER LEAKING. GROUNDED - YES. R/R SERVO FUEL HEATER PER B737-900 AMM 73-11-07-400-801-F00.May 1, 2023 · N477AS · Boeing 737990ER · Engine Fuel DistributionSDR ASAA2023050143066Sensor · out of range"ENGINE CONTROL" LIGHT ON OVERHEAD ILLUMINATED ON ENGINE #2 AFTER LANDING. GROUNDED - YES. REMOVED T3 SENSOR REF B737-900 AMM 73-21-07. INSTALLED ENGINE 2 T3 SENSOR PER AMM 73-21-07-400-801-F00.May 1, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2023042042960Unknown · unknownAUTO PILOT "A" DISCONNECTED IN CRUISE FLT, RE-ENGAGED, AFTER 5 MINUTES AUTOPILOT DISCONNECTED, SWITCHED TO AUTO "B" WORKS FINE. GROUNDED - YES. REF B737-900 FIM 22-11 TASK 854 PERFORMED LLM AUTOLAND TEST, ALL TEST PASSED NO FAULTS DETECTED AT THIS TIME. CAT IIApr 20, 2023 · N477AS · Boeing 737990ER · Autopilot SystemSDR ASAA2023041342877Motor · faultedAUTOPILOT A DISCONNECTED IN CRUISE FLIGHT. GROUNDED - YES. INSPECTED AND FOUND FAULT MESSAGE 22-11186 SEVERAL TIMES IN AUTO PILOT DISCONNECT AND DFCS LOGGED FAULTS. PER FIM 22-11 TASK 854. REPLACED STABILIZER TRIM MOTOR M1659. RMVD AND INSTALLED NEW M1669. REApr 13, 2023 · N477AS · Boeing 737990ER · Autopilot SystemSDR ASAA2023041242836Unknown · unknownAT FL360 ENGAGGED "A" AUTOPILOT. AFTER 5 MINUTES, AUTOPILOT DISENGAGED. RE-ENGAGED "A" AUTOPILOT, AND AFTER 5 MINUTES, AUTOPILOT DISENGAGED AGAIN. ENGAGED "B" AUTOPILOT, "B" WORKS FINE. GROUNDED - YES. ACCOMPLISHED DFCS BITE B737-900 FIM 22-11 TASK 801. FOUND Apr 12, 2023 · N477AS · Boeing 737990ER · Autopilot SystemSDR ASAA2023022442077Lens · missingEMERGENCY AISLE LIGHT LENS MISSING (INOP) ABOVE ROW 30ABC. GROUNDED - YES. REPLACED AISLE EMERGENCY LIGHT LENS, REF B737-900 AMM 33-51-03.Feb 24, 2023 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2023021342420Sensor · out of rangeWHILE ACCOMPLISHING ASA T/C 78273000 FOUND LONG TIME FAULT ON #2 ENGINE. "T3 SIGNAL IS OUT OF RANGE" MESSAGE # 75-10832. GROUNDED - YES. REPLACED THE T3 SENSOR REF B737-900 FIM 75-33 TSK 802 AND B737-900 AMM 73-21-07.Feb 13, 2023 · N477AS · Boeing 737990ER · Fuel Controlling SystemSDR ASAA2022122741256Satcom · lockedSATCOM LOCKED UP. GROUNDED - YES. CIRCUIT BREAKER CYCLED TO CLEAR LOCKUP.Dec 27, 2022 · N477AS · Boeing 737990ER · Communications SystemSDR ASAA2022122641263Fmc · malfunctionedAT CRUISE RECEIVED 'VTK" AND NO FMC DATA ON CA SIDE. AFTER A FEW SECONDS "VTK" EXTINGUISHED AND FMC DATA CAME BACK AND WE RESUMED NORMAL OPERATIONS. GROUNDED - YES. PERFORMED FMC SYSTEM BITE PROCEDURE IAW B737-900 FIM 34-61 TASK 801, NO DEFECTS NOTED CAPTAIN ADec 26, 2022 · N477AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2022122641225Warning Light · false indicationON RECALL MASTER CAUTION AND "AIR CON " LIGHT ILL ZONE TEMP LIGHT ABOVE CONTROLLER CABIN ILLUMINATED LIGHTS EXTINGUISHED OM MASTER CAUTION RESET. GROUNDED - YES. PERFORMED PZTC BITE IAW AMM 21-61-00, ONE HIT FOR FLT DECK TRIM VALVE AT CONTROLLER NR 2 M1443. PDec 26, 2022 · N477AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2022121341118Lamp · inoperativeRH EMERGENCY LIGHT AFT OF WING INOPERATIVE. GROUNDED - YES. REPLACED THE RT EMERGENCY LIGHT LAMP IAW AMM 33-51-04. OPS CHECKED GOOD.Dec 13, 2022 · N477AS · Boeing 737990ER · Emergency LightingSDR ASAA2022111540779Warning Message · false activationSAT PROMPT NOT DISPLAYED ON MCDU PERFORMED QRH SAT LOCK UP PROCEDURE AND SAT RESTORED. GROUNDED - YES. CONFIRMED RESET SATCOM OP OK REF B737-900 AMM 23-15-00.Nov 15, 2022 · N477AS · Boeing 737990ER · Central WarningSDR ASAA2022102940562Pump · failedRT CTR FUEL PUMP LOW PRESSURE LT ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED OF RT CTR FUEL PUMP MOTOR IMPELLER.Oct 29, 2022 · N477AS · Boeing 737990ER · Fuel Boost PumpSDR ASAA2022102940545Pressure Switch · faultedIN LEVEL FLIGHT W/1.6 CTR TANK R CTR FUEL PUMP LOW PRESSURE LIGHT REMAINS ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED RH CENTER FUEL PUMP PRESSURE SWITCH REF B737-900 AMM 28-42-11.Oct 29, 2022 · N477AS · Boeing 737990ER · Aircraft Fuel Distribution System
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