N431AS

Service difficulty reports · 360

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 = 'N431AS' 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 ASAA2026061866890Smoke Detector · false activationLAVATORY D SMOKE DETECTOR TRIGGERED IN FLT . NO EVIDENCE OF SMOKE OR SMELLS. WENT ON/OFF TWICE. GROUNDED - YES. DET TESTS GOOD - NO DEFECTS FOUND.Jun 18, 2026 · N431AS · Boeing 737990ER · Smoke DetectionSDR ASAA2026012063881Wheel · failedON TAKEOFF, APPROACHING V1, LOUD BANG AND SHUDDERING EXPERIENCED. SUSPECTED TIRE FAILURE. GROUNDED - YES. (RESOLVED ON W/O: 2087248 TASKCARD: N/R-00003 ) REF L/P'S 61189241 THRU 61189248 FOR A/C DAMAGE, AND L/P # 61188499 FOR WORK ACCOMPLISHED AND REPAIRS. THIJan 20, 2026 · N431AS · Boeing 737990ER · Wheel/Ski/FloatSDR ASAA2025060258411Sign · detachedCLEANERS REPORT THAT WHILE CLEANING CEILING THE MID CABIN EMERGENCY EXIT SIGN FELL DOWN. GROUNDED - YES. FOUND 2 OF THE 4 ATTACHING SCREWS MISSING & THE EXISTING SCREWS VERY LOOSE. INSTALLED 2 SCREWS & REINSTALLED MID CABIN EMERGENCY EXIT SIGN. OPS CHECK OK.Jun 2, 2025 · N431AS · Boeing 737990ER · Emergency LightingSDR ASAA2025050957886Lens · missingEXIT PLACARD MISSING AT SEAT 16D. GROUNDED - YES. REPLACED MISSING EXIT LENS LIGHT COVER AT ROW 16D. REF IAPC 33-51-01-06F.May 9, 2025 · N431AS · Boeing 737990ER · Emergency LightingSDR ASAA2025031757371Floorbeam · corrodedFLOOR BEAM STA.947.5 RBL.48 AND RBL.52 HAVE AREAS OF CORROSION. (MARKED IN RED). GROUNDED - YES. EVALUATED CORROSION-CORROSION IS OUT OF LIMITS DUE TO PROXIMITY TO A HARD POINT IAW B737-900ER SRM 53-70-51-1A-1. FULL T-CAP REPAIR ACCOMPLISHED ON ALASKA CARD#G21Mar 17, 2025 · N431AS · Boeing 737990ER · Fuselage Main, Floor BeamSDR ASAA2025031757368Floor Support · corrodedINTERCOSTAL BETWEEN STA.294.5 AND STA.312 LBL.12 HAS AREA OF CORROSION. (MARKED IN RED). GROUNDED - YES. REMOVED AND REPLACED INTERCOSTAL P/N 141A5690U1 PO# 1117242.6 IAW B737-900ER SRM 51-40-02. LOOSENED CABLES MLGEA, EA (LEFT) AND EB (LEFT) TO FOM IAW B737-9Mar 17, 2025 · N431AS · Boeing 737990ER · Fuselage Miscellaneous StructureSDR ASAA2025031757367Floor Support · corrodedINTERCOSTAL AT STA 947.5 FLOOR BEAM LBL 51 HAS AREA OF CORROSION. GROUNDED - YES. REMOVED INTERCOSTAL IAW B737-900ER SRM 51-40-02. CHECKED LIMITS AND FOUND OUT OF LIMITS IAW B737-900ER SRM 53-70-51-1A-1, MATERIAL LOSS .049 ORIGINAL 0.215, MAX ALLOWED IS .021, Mar 17, 2025 · N431AS · Boeing 737990ER · Fuselage Miscellaneous StructureSDR ASAA2025031757366Floorbeam · corrodedFLOOR BEAM @ STA 947.5 LBL 54 HAS AREA OF CORROSION. GROUNDED - YES. EVALUATED CORROSION-CORROSION IS OUT OF LIMITS DUE TO PROXIMITY TO A HARD POINT IAW B737-900ER SRM 53-70-51-1A-1. ACCOMPLISHED T-CAP REPAIR IAW B737-900ER SRM 53-70-51-2R-5. REMOVED AND REINSMar 17, 2025 · N431AS · Boeing 737990ER · Fuselage Main, Floor BeamSDR ASAA2025031757004Floor Panel · peelingCABIN FLOOR PANEL 141A5810-142 HAS PEELING FIBER. GROUNDED - YES. ACCOMPLISHED PERMANENT REPAIR TO CABIN FLOOR PANEL 141A5810-142. IAW B737-900 ER SRM 53-00-50-2R-0 REPAIR GENERAL.Mar 17, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2025031756920Floor Panel · delaminatedCABIN FLOOR PANEL 143A5810-594 HAS BROKEN INSERT & PEELING FIBER ON BOTTOM. GROUNDED - YES. REPAIRED FLOOR PANEL 143A5810-594 IAW B737-900ER SRM 53-00-50-1A-1, SRM 53-00-50-2R-7, SRM 53-00-50-2R-0.Mar 17, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2025031457111Floor Panel · delaminatedCABIN AFT WET AREA FLOOR PANEL 147A5810-439 HAS PEELING FIBERS & CORRODED INSERTS. GROUNDED - YES. REPAIRED 147A5810-489 FLOORBOARD OF PEELING FIBERS & CORRODED INSERTS IAW B737-900ER SRM 53-00-50-1A-1, 53-00-50-2R-7, 53-00-50-2R-0.Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2025031457110Floor Panel · delaminatedCABIN FWD WET AREA FLOOR PANEL 141A5810-763 HAS TAB BROKEN, EDGE DAMAGE & CORRODED INSERTS. GROUNDED - YES. REPAIRED CABIN FWD WET AREA FLOOR PANEL 141A5810-763 BROKEN TAB, EDGE DAMAGE & CORRODED INSERTS IAW ASA B737-900ER SRM 53-00-50-OI-1, 53-00-50-2R-0, 53-Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2025031457056Floor Panel · brokenCABIN FLOOR PANEL143A5810-516 CORNER IS BROKEN. GROUNDED - YES. ACCOMPLISHED PERMANENT REPAIR TO CABIN FLOOR PANEL 143A5810-516 IAW ASA B737 SRM 53-00-50-2R-5 & 53-00-50-2R-0.Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Miscellaneous StructureSDR ASAA2025031457055Floor Panel · delaminatedCABIN FWD WET AREA FLOOR PANEL 141A5810-155 HAS PEELING FIBERS & CORRODED INSERTS. GROUNDED - YES. REPAIRED FLOOR PANEL 141A5810-155 PEELING FIBERS AND REPLACED CORRODED INSERTS IAW B737-900ER SRM 53-00-50-2R-7, SRM 53-00-50-2R-0.Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2025031457005Skin · peelingCABIN FWD WET AREA FLOOR PANEL 141A5810-767 HAS CORRODED INSERTS & PEELING FIBERS. GROUNDED - YES. REPAIRED CABIN FWD WET AREA FLOOR PANEL 141A5810-767 CORRODED INSERTS & PEELING FIBERS IAW ASA B737-900ER SRM 53-00-50-0I-1, 53-00-50-2R-0, 53-00-50-2R-1.Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2025031457003Floor Panel · delaminatedCABIN FWD WET AREA FLOOR PANEL 141A5810-454 HAS PEELING FIBERS. GROUNDED - YES. REPAIRED FLOOR PANEL 141A5810-454 PEELING FIBERS IAW B737-900ER SRM 53-00-50-2R-7, SRM 53-00-50-2R-0.Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2025031457002Floor Panel · damagedCABIN FWD WET AREA FLOOR PANEL 141A5810-769 HAS PEELING FIBERS & CORRODED INSERTS. GROUNDED - YES. ACCOMPLISHED PERMANENT REPAIR TO CABIN FWD WET AREA FLOOR PANEL 141A5810-769. IAW B737-900ER SRM 53--00-50-2R-0 REPAIR GENERAL.Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2025031457001Floor Panel · delaminatedCABIN AFT WET AREA FLOOR PANEL 147A5810-440 HAS PEELING FIBERS & CORRODED INSERTS. GROUNDED - YES. REPAIRED FLOOR PANEL 147A5810-440 IAW B737-900ER SRM 53-00-50-1A-1, SRM 53-00-50-2R-7, SRM 53-00-50-2R-0.Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2025031456924Floor Panel · peelingCABIN FWD WET AREA FLOOR PANEL 141A5810-157 HAS PEELING FIBERS. GROUNDED - YES. ACCOMPLISHED PERMANENT REPAIR TO CABIN FWD WET AREA FLOOR PANEL 141A5810-157 IAW ASA B737-900ER SRM 53-00-50-2R-7 & 53-00-50-2R-0.Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2025031456923Floor Panel · peelingCABIN FWD WET AREA FLOOR PANEL 141A5810-558 HAS PEELING FIBERS. GROUNDED - YES. ACCOMPLISHED PERMANENT REPAIR TO CABIN FWD WET AREA FLOOR PANEL 141A5810-558 IAW ASA B737-900ER SRM 53-00-50-2R-7 & 53-00-50-2R-0.Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2025031456922Floor Panel · damagedCABIN FWD WET AREA FLOOR PANEL 141A5810-766 HAS CORRODED INSERTS & EDGE DAMAGE. GROUNDED - YES. REPAIRED CABIN FWD WET AREA FLOOR PANEL 141A5810-766 IAW ASA B737-900ER SRM 53-00-50-2R-4 REP 4, 53-00-50-2R-0 + 53-00-50-2-0I.Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2025031456921Floor Panel · delaminatedCABIN FWD WET AREA FLOOR PANEL 141A5802-183 HAS BROKEN TAB. GROUNDED - YES. REPAIRED FWD WET AREA FLOOR PANEL 141A5802-183 IAW B737-900 SRM 53-00-50-1A-1, SRM 53-00-50-2R-0.Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor PanelSDR ASAA2024090252248Sign · detachedMID-CABIN EXIT SIGN IS DANGLING FROM CABIN CEILING. GROUNDED - YES. REATTACHED AND RE-SECURED MID-CABIN CEILING EMERGENCY EXIT SIGN. NO DEFECTS NOTED. OPS CKS NORMAL.Sep 2, 2024 · N431AS · Boeing 737990ER · Emergency LightingSDR ASAA2024032048557Door · noneF/A REPORTS R-2 DOOR HARD TO OPEN. GROUNDED - YES. LUBED R-2 DOOR. OPS CHECKS NORMAL. REF AMM 52-13-00.Mar 20, 2024 · N431AS · Boeing 737990ER · Service DoorsSDR ASAA2024031148375Battery Pack · failedDURING T/C 78233001 BATTERY PACK M1673 FAILED. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK M1673 REF WDM 33-51-14-3 AND AMM 33-51-06. OPS CHECK GOOD,.Mar 11, 2024 · N431AS · Boeing 737990ER · Emergency LightingSDR ASAA2023111046129Unknown · unknownDURING ENGINE START ON #2 EGT SPIKED TO APPROX 500 C, EGT BOX STARTED BLINKING ENGINE AUTO SHUTDOWN. RAN QRC FOLLOW BY QRH. GROUNDED - YES. PERFORMED EEC BITE CHECK ON #2 ENG PER F.I.M 73-00-TASK 801, NO RECENT FAULTS AND NO FAULT HISTORY FOUND. HAD FLIGHT CRENov 10, 2023 · N431AS · Boeing 737990ER · Engine Indicating SystemSDR ASAA2023110346032Lens · detachedFRONT GALLEY EXIT SIGN ABOVE R1 DOOR FELL OFF ( NOT ATTACHED). GROUNDED - YES. R/R EMERGENCY EXIT SIGN REF AMM 33-51-01 OPS GOOD.Nov 3, 2023 · N431AS · Boeing 737990ER · Emergency LightingSDR ASAA2023102645849Unknown · unknownGE DIAGNOSTICS REPORTS #1 ENGINE TREND DATA SHOWS A DELTA EGT INCREASE AND EGT HOT DAY MARGIN DECREASE. EGT INDICATION ERRORS ARE SUSPECTED. GROUNDED - YES. PERFORMED B737-900 FIM 77-05 TASK 801. HAVE ECONOMIC FAULT 77-10841 TOP RH EGT T49581. PERFORMED PROBE Oct 26, 2023 · N431AS · Boeing 737990ER · Engine Temperature Indicating SystemSDR ASAA2023102245778Unknown · unknown#1 ENG START SW WILL NOT STAY ENGAGED IN GRD POSITION. WHEN HOLDING START SW MANUALLY -NO-US. GROUNDED - YES. PERFORMED OPS CHECK ON NORMAL ENGINE PROCEDURES FOR ENGINE 1 IAW B737-900 AMM 71-00-00-800-808-100. COULD NOT DUPLICATE DISCREPANCY. OPS CHECK GOOD.Oct 22, 2023 · N431AS · Boeing 737990ER · Turbine Engine Accessory DriveSDR ASAA2023101445613Unknown · unknownREF TASK CARD 78273000MAINTENANCE MESSAGE 77-10841,TOP RIGHT EGT OUT OF RANGE.ECONOMIC FAULT ON ENGINE 1. GROUNDED - YES. ON DEFERRAL.Oct 14, 2023 · N431AS · Boeing 737990ER · Engine Indicating SystemSDR ASAA2023100945524Unknown · unknownRIGHT RAM DOOR FULL OPEN BLUE LIGHT ILLUMINATED ENTIRE FLIGHT. GROUNDED - YES. (RESOLVED ON W/O: 1972773 TASKCARD: N/R-00001 ) REVERSED MEL PROCEDURE FOR FRONT ACTUATOR AND REVERSED OPTION 1 FOR SRADA ACTUATOR. RE STOWED STOWAGE LINK AND HARDWARE IN FLY AWAY KOct 9, 2023 · N431AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2023100545511Unknown · unknownCPDLC DATA FAIL MESSAGE SHOWING. GROUNDED - YES. ACCOMPLISHED CPDLC FUNCTIONAL TEST REF. AMM 34-61-00.OPS. CK. GOOD. DATA FAIL MSG. IS NOW GONE.Oct 5, 2023 · N431AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2023090945012Control Panel · faultyAPPROX 10 MINUTES AFTER LEVELING AT FL380, THE AUTOFAIL LIGHT ILLUMINATED. WE COMPLIED W. QRH. QHR DIRECTED US TO UTILIZE MANUAL MODE AFTER ALTN MODE DID NOT REMEDY THE ISSUE. MANUAL MODE US TO MAINTAIN NORMAL PRESSURIZATION RANGE AND WE CONTINUED TO SEATTLE. Sep 9, 2023 · N431AS · Boeing 737990ER · Cabin Pressure Control SystemSDR ASAA2023090544960Modulating Valve · faultyON MASTER RECALL R PACK LIGHT ILLUMINATES. OFF WHEN RESET WITH MASTER CAUTION. GROUNDED - YES. REMOVED AND REPLACED RH TEMPERATURE CONTROL VALVE IAW AMM 21-51-10-000-801 AND AMM 21-51-10-400-801, ETOPS GROUND FUNCTIONAL CHECK GOOD IAW AMM 21-61-00-700-806-002.Sep 5, 2023 · N431AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2023082444803Packing · worn#1 ENG OIL FILLER CAP O-RING WORN. GROUNDED - YES. REMOVED AND REPLACED #1 ENG OIL FILLER CAP O-RING REF AMM 79-11-01.Aug 24, 2023 · N431AS · Boeing 737990ER · Turbine Engine Oil SystemSDR ASAA2023081544609Unknown · unknownON PREFLIGHT, FOUND BREAKER OPEN: ENGINE 1 & WING ANTI ICE CONTROL LOCATION P18 - 3 GRID A6 FOUND POPPED. GROUNDED - YES. GVI CB AND ACCESS WIRING, NO DEFECTS NOTED.RESET CB REF AMM 20-60-01 WING AND ENGINE 1 ANTI-ICE OPS CHECKS OK REF. AMM 30-11-00 PAR G, STEAug 15, 2023 · N431AS · Boeing 737990ER · Airfoil Anti/De-ice SystemSDR ASAA2023081144566Unknown · unknownPRIOR TO TAKEOFF, FMC DISAGREE MSG ON BOTH FMCS + MAP DISPLAYS. GROUNDED - YES. AS PER CHECKLIST, RESET FMCS CMPTR 1 AND FMCS CMPTR 2 CBS. MSG NO LONGER DISPLAYED.Aug 11, 2023 · N431AS · Boeing 737990ER · Flight Management Computing Hardware SystemSDR ASAA2023080344414Unknown · unknownRIGHT PACK ILLUMINATES ON RECALL, GOES OUT WITH M/C RESET. GROUNDED - YES. ON DEFERRAL.Aug 3, 2023 · N431AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2023072944288Unknown · unknownAFTER ENGINE START, RIGHT PACK LIGHT ILLUMINATED DURING RECALL WOULD NOT RESET WITH MASTER CAUTION RESET. GROUNDED - YES. (RESOLVED ON W/O: 1953891 TASKCARD: N/R-00002 ) REVERSED MAINTENANCE PROCEDURES TO MEL 21-1GOPERATION OF R/H PACK NORMAL. NO AIRCRAFT HISTJul 29, 2023 · N431AS · Boeing 737990ER · Cabin Cooling SystemSDR ASAA2023072744269Magnetic Plug · malfunctioned#2 ENG STARTED MAG PLUG WILL NOT REMOVE REF TC N2480001. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE AIR STARTER MAG PLUG AND HOUSING REF AMM 80-11-01 TC N2480001 COMPLETE.Jul 27, 2023 · N431AS · Boeing 737990ER · Engine StarterSDR ASAA2023071043970Battery Pack · inoperativeSTA 727C+13 WL 212 LBL 68 EMERGENCY LIGHT BATTERY PACK INOP. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK REF AMM TASK 33-51-06-960-805, OPS CHECK GOOD. OK FOR SERVICE.Jul 10, 2023 · N431AS · Boeing 737990ER · Emergency LightingSDR ASAA2023070443896Regulator · faultyAT IDLE WITH BOTH ENGINES RUNNING, ON ENGINE BLEED AIR. LEFT DUCT PRESSURE READS ONLY 9 PSI. GROUNDED - YES. CONFIRMED PRESSURE READING, WITH PHOTO OF GAUGE AT IDLE, OUT OF LIMITS REF MM 36-00-00-860-014. REMOVED AND REPLACED PRECOOLER CONTROL VALVE #1 ENG REFJul 4, 2023 · N431AS · Boeing 737990ER · Compressor Bleed ValveSDR ASAA2023062743806Unknown · unknownUPON ARRIVAL IN SEA, APU WOULD NOT START AND WE GOT A FAULT LIGHT. GROUNDED - YES. CK'D AND REL PER MEL 49-99A. MAINT MSG #49-41012. STARTED APU REF MM 49-11-00-860-801. STARTS NORMALLY.Jun 27, 2023 · N431AS · Boeing 737990ER · APU Start/Ignition SystemSDR ASAA2023062543707Battery Pack · inoperativeLH SIDE EMER LIGHTS CABIN AND OVERWING EXTERIOR EMER LIGHTS NOT WORKING. GROUNDED - YES. REPLACED EMER LIGHTS BATTERY PACKS AS REQUIRED REF B737-900 AMM 33-57-06 OPS CK PASS.Jun 25, 2023 · N431AS · Boeing 737990ER · Emergency LightingSDR ASAA2023052443338Control Panel · faultedIAS/ MACH LED DISPLAY BURNT OUT PIXES ON MCP PANEL. GROUNDED - YES. REMOVED & REPLACED MODE CONTROL PANEL REF B737-900 AMM 22-11-34.May 24, 2023 · N431AS · Boeing 737990ER · Autopilot SystemSDR ASAA2023051643244Unknown · unknownAIR TURN BACK FOR LOW PRESSURE HYD LIGHT ILLUMINATED AFTER ROTATION. PRESSURE DROPPED TO 1600 PSI. LIGHT EXTINGUISHED AND PRESSURE RETURN 2900 PSI. AFTER GEAR UP AND LOCK. GROUNDED - YES. AIR TURNBACK - INSPECTED HYDRAULIC SYSTEM FOUND NO DEFECTS. SUSPECTED AIMay 16, 2023 · N431AS · Boeing 737990ER · Hydraulic System, MainSDR ASAA2023042042928Solenoid · faultyFOLLOW-UP TO HISTORY OF P18-3 A6 ANTI-ICE & RAIN ENG 1, WING CONT CB TRIPPING. GROUNDED - YES. REPLACED GRD WING TAI SOLENOID VALVE, REF. B737-900 AMM 30-11-12.Apr 20, 2023 · N431AS · Boeing 737990ER · Airfoil Anti/De-ice SystemSDR ASAA2023041342884Unknown · unknownENGINE CONTROL #2 CIRCUIT BREAKER POPPED BEHIND CAPTAIN SEAT ON P18 (A-6) LOCATION (ENGINE ANTI-ICE CONTROL). GROUNDED - YES. RESET ANTI ICE AND RAIN CONTROL ENGINE 2 CIRCUIT BREAKER. REF B737-900 AMM 20-60-01. NOT DEFECTS NOTED. PERFORMED OPS CHECK OF ENGINE Apr 13, 2023 · N431AS · Boeing 737990ER · Air Intake Anti/De-Ice SystemSDR ASAA2023040342757Unknown · unknownDURING MASTER CAUTION RECALL, AIR COND INDICATION AND ZONE TEMP CAUTION LIGHT ON OVERHEAD. GROUNDED - YES. PERFORMED BITE TEST PER MM 21-61-00, SHOWED FLT DECK TRIM, ALL PASS "GO". RESET LIGHT AND RE PERFORMED BITE, ALL PASS GO WITH NO ANOMALIES. AC GOOD FOR Apr 3, 2023 · N431AS · Boeing 737990ER · Cabin Temperature Control SystemSDR ASAA2023040342747Unknown · unknownCONT CAB ZONE TEMP ILLUMINATED ON RECALL AND EXTINGUISHED ON MASTER CAUTION RESET. GROUNDED - YES. ON DEFERRAL.Apr 3, 2023 · N431AS · Boeing 737990ER · Cabin Temperature Control System
Back to N431AS