# Service difficulty reports: N431AS

A list on [N431AS](https://openairdocs.org/aircraft/N431AS.md).

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

Page 1 of 8 · 360 reports

- [SDR ASAA2026061866890](https://openairdocs.org/sdr/ASAA2026061866890.md): Smoke Detector · false activation · Jun 18, 2026 · N431AS · Boeing 737990ER · Smoke Detection
  > LAVATORY D SMOKE DETECTOR TRIGGERED IN FLT. NO EVIDENCE OF SMOKE OR SMELLS. WENT ON/OFF TWICE. GROUNDED - YES. DET TESTS GOOD - NO DEFECTS FOUND.
- [SDR ASAA2026012063881](https://openairdocs.org/sdr/ASAA2026012063881.md): Wheel · failed · Jan 20, 2026 · N431AS · Boeing 737990ER · Wheel/Ski/Float
  > ON 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. THI
- [SDR ASAA2025060258411](https://openairdocs.org/sdr/ASAA2025060258411.md): Sign · detached · Jun 2, 2025 · N431AS · Boeing 737990ER · Emergency Lighting
  > CLEANERS 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.
- [SDR ASAA2025050957886](https://openairdocs.org/sdr/ASAA2025050957886.md): Lens · missing · May 9, 2025 · N431AS · Boeing 737990ER · Emergency Lighting
  > EXIT PLACARD MISSING AT SEAT 16D. GROUNDED - YES. REPLACED MISSING EXIT LENS LIGHT COVER AT ROW 16D. REF IAPC 33-51-01-06F.
- [SDR ASAA2025031757371](https://openairdocs.org/sdr/ASAA2025031757371.md): Floorbeam · corroded · Mar 17, 2025 · N431AS · Boeing 737990ER · Fuselage Main, Floor Beam
  > FLOOR 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#G21
- [SDR ASAA2025031757368](https://openairdocs.org/sdr/ASAA2025031757368.md): Floor Support · corroded · Mar 17, 2025 · N431AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > INTERCOSTAL 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 B737-9
- [SDR ASAA2025031757367](https://openairdocs.org/sdr/ASAA2025031757367.md): Floor Support · corroded · Mar 17, 2025 · N431AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > INTERCOSTAL 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,
- [SDR ASAA2025031757366](https://openairdocs.org/sdr/ASAA2025031757366.md): Floorbeam · corroded · Mar 17, 2025 · N431AS · Boeing 737990ER · Fuselage Main, Floor Beam
  > FLOOR 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 REINS
- [SDR ASAA2025031757004](https://openairdocs.org/sdr/ASAA2025031757004.md): Floor Panel · peeling · Mar 17, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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.
- [SDR ASAA2025031756920](https://openairdocs.org/sdr/ASAA2025031756920.md): Floor Panel · delaminated · Mar 17, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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.
- [SDR ASAA2025031457111](https://openairdocs.org/sdr/ASAA2025031457111.md): Floor Panel · delaminated · Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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.
- [SDR ASAA2025031457110](https://openairdocs.org/sdr/ASAA2025031457110.md): Floor Panel · delaminated · Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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-
- [SDR ASAA2025031457056](https://openairdocs.org/sdr/ASAA2025031457056.md): Floor Panel · broken · Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > CABIN 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.
- [SDR ASAA2025031457055](https://openairdocs.org/sdr/ASAA2025031457055.md): Floor Panel · delaminated · Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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.
- [SDR ASAA2025031457005](https://openairdocs.org/sdr/ASAA2025031457005.md): Skin · peeling · Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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.
- [SDR ASAA2025031457003](https://openairdocs.org/sdr/ASAA2025031457003.md): Floor Panel · delaminated · Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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.
- [SDR ASAA2025031457002](https://openairdocs.org/sdr/ASAA2025031457002.md): Floor Panel · damaged · Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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.
- [SDR ASAA2025031457001](https://openairdocs.org/sdr/ASAA2025031457001.md): Floor Panel · delaminated · Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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.
- [SDR ASAA2025031456924](https://openairdocs.org/sdr/ASAA2025031456924.md): Floor Panel · peeling · Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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.
- [SDR ASAA2025031456923](https://openairdocs.org/sdr/ASAA2025031456923.md): Floor Panel · peeling · Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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.
- [SDR ASAA2025031456922](https://openairdocs.org/sdr/ASAA2025031456922.md): Floor Panel · damaged · Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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.
- [SDR ASAA2025031456921](https://openairdocs.org/sdr/ASAA2025031456921.md): Floor Panel · delaminated · Mar 14, 2025 · N431AS · Boeing 737990ER · Fuselage Floor Panel
  > CABIN 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.
- [SDR ASAA2024090252248](https://openairdocs.org/sdr/ASAA2024090252248.md): Sign · detached · Sep 2, 2024 · N431AS · Boeing 737990ER · Emergency Lighting
  > MID-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.
- [SDR ASAA2024032048557](https://openairdocs.org/sdr/ASAA2024032048557.md): Door · none · Mar 20, 2024 · N431AS · Boeing 737990ER · Service Doors
  > F/A REPORTS R-2 DOOR HARD TO OPEN. GROUNDED - YES. LUBED R-2 DOOR. OPS CHECKS NORMAL. REF AMM 52-13-00.
- [SDR ASAA2024031148375](https://openairdocs.org/sdr/ASAA2024031148375.md): Battery Pack · failed · Mar 11, 2024 · N431AS · Boeing 737990ER · Emergency Lighting
  > DURING 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,.
- [SDR ASAA2023111046129](https://openairdocs.org/sdr/ASAA2023111046129.md): Unknown · unknown · Nov 10, 2023 · N431AS · Boeing 737990ER · Engine Indicating System
  > DURING 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 CRE
- [SDR ASAA2023110346032](https://openairdocs.org/sdr/ASAA2023110346032.md): Lens · detached · Nov 3, 2023 · N431AS · Boeing 737990ER · Emergency Lighting
  > FRONT GALLEY EXIT SIGN ABOVE R1 DOOR FELL OFF ( NOT ATTACHED). GROUNDED - YES. R/R EMERGENCY EXIT SIGN REF AMM 33-51-01 OPS GOOD.
- [SDR ASAA2023102645849](https://openairdocs.org/sdr/ASAA2023102645849.md): Unknown · unknown · Oct 26, 2023 · N431AS · Boeing 737990ER · Engine Temperature Indicating System
  > GE 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
- [SDR ASAA2023102245778](https://openairdocs.org/sdr/ASAA2023102245778.md): Unknown · unknown · Oct 22, 2023 · N431AS · Boeing 737990ER · Turbine Engine Accessory Drive
  > #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.
- [SDR ASAA2023101445613](https://openairdocs.org/sdr/ASAA2023101445613.md): Unknown · unknown · Oct 14, 2023 · N431AS · Boeing 737990ER · Engine Indicating System
  > REF TASK CARD 78273000MAINTENANCE MESSAGE 77-10841,TOP RIGHT EGT OUT OF RANGE.ECONOMIC FAULT ON ENGINE 1. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023100945524](https://openairdocs.org/sdr/ASAA2023100945524.md): Unknown · unknown · Oct 9, 2023 · N431AS · Boeing 737990ER · Cabin Cooling System
  > RIGHT 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 K
- [SDR ASAA2023100545511](https://openairdocs.org/sdr/ASAA2023100545511.md): Unknown · unknown · Oct 5, 2023 · N431AS · Boeing 737990ER · Flight Management Computing Hardware System
  > CPDLC DATA FAIL MESSAGE SHOWING. GROUNDED - YES. ACCOMPLISHED CPDLC FUNCTIONAL TEST REF. AMM 34-61-00.OPS. CK. GOOD. DATA FAIL MSG. IS NOW GONE.
- [SDR ASAA2023090945012](https://openairdocs.org/sdr/ASAA2023090945012.md): Control Panel · faulty · Sep 9, 2023 · N431AS · Boeing 737990ER · Cabin Pressure Control System
  > APPROX 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.
- [SDR ASAA2023090544960](https://openairdocs.org/sdr/ASAA2023090544960.md): Modulating Valve · faulty · Sep 5, 2023 · N431AS · Boeing 737990ER · Cabin Cooling System
  > ON 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.
- [SDR ASAA2023082444803](https://openairdocs.org/sdr/ASAA2023082444803.md): Packing · worn · Aug 24, 2023 · N431AS · Boeing 737990ER · Turbine Engine Oil System
  > #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.
- [SDR ASAA2023081544609](https://openairdocs.org/sdr/ASAA2023081544609.md): Unknown · unknown · Aug 15, 2023 · N431AS · Boeing 737990ER · Airfoil Anti/De-ice System
  > ON 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, STE
- [SDR ASAA2023081144566](https://openairdocs.org/sdr/ASAA2023081144566.md): Unknown · unknown · Aug 11, 2023 · N431AS · Boeing 737990ER · Flight Management Computing Hardware System
  > PRIOR 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.
- [SDR ASAA2023080344414](https://openairdocs.org/sdr/ASAA2023080344414.md): Unknown · unknown · Aug 3, 2023 · N431AS · Boeing 737990ER · Cabin Cooling System
  > RIGHT PACK ILLUMINATES ON RECALL, GOES OUT WITH M/C RESET. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023072944288](https://openairdocs.org/sdr/ASAA2023072944288.md): Unknown · unknown · Jul 29, 2023 · N431AS · Boeing 737990ER · Cabin Cooling System
  > AFTER 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 HIST
- [SDR ASAA2023072744269](https://openairdocs.org/sdr/ASAA2023072744269.md): Magnetic Plug · malfunctioned · Jul 27, 2023 · N431AS · Boeing 737990ER · Engine Starter
  > #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.
- [SDR ASAA2023071043970](https://openairdocs.org/sdr/ASAA2023071043970.md): Battery Pack · inoperative · Jul 10, 2023 · N431AS · Boeing 737990ER · Emergency Lighting
  > STA 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.
- [SDR ASAA2023070443896](https://openairdocs.org/sdr/ASAA2023070443896.md): Regulator · faulty · Jul 4, 2023 · N431AS · Boeing 737990ER · Compressor Bleed Valve
  > AT 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 REF
- [SDR ASAA2023062743806](https://openairdocs.org/sdr/ASAA2023062743806.md): Unknown · unknown · Jun 27, 2023 · N431AS · Boeing 737990ER · APU Start/Ignition System
  > UPON 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.
- [SDR ASAA2023062543707](https://openairdocs.org/sdr/ASAA2023062543707.md): Battery Pack · inoperative · Jun 25, 2023 · N431AS · Boeing 737990ER · Emergency Lighting
  > LH 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.
- [SDR ASAA2023052443338](https://openairdocs.org/sdr/ASAA2023052443338.md): Control Panel · faulted · May 24, 2023 · N431AS · Boeing 737990ER · Autopilot System
  > IAS/ MACH LED DISPLAY BURNT OUT PIXES ON MCP PANEL. GROUNDED - YES. REMOVED & REPLACED MODE CONTROL PANEL REF B737-900 AMM 22-11-34.
- [SDR ASAA2023051643244](https://openairdocs.org/sdr/ASAA2023051643244.md): Unknown · unknown · May 16, 2023 · N431AS · Boeing 737990ER · Hydraulic System, Main
  > AIR 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 AI
- [SDR ASAA2023042042928](https://openairdocs.org/sdr/ASAA2023042042928.md): Solenoid · faulty · Apr 20, 2023 · N431AS · Boeing 737990ER · Airfoil Anti/De-ice System
  > FOLLOW-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.
- [SDR ASAA2023041342884](https://openairdocs.org/sdr/ASAA2023041342884.md): Unknown · unknown · Apr 13, 2023 · N431AS · Boeing 737990ER · Air Intake Anti/De-Ice System
  > ENGINE 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
- [SDR ASAA2023040342757](https://openairdocs.org/sdr/ASAA2023040342757.md): Unknown · unknown · Apr 3, 2023 · N431AS · Boeing 737990ER · Cabin Temperature Control System
  > DURING 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
- [SDR ASAA2023040342747](https://openairdocs.org/sdr/ASAA2023040342747.md): Unknown · unknown · Apr 3, 2023 · N431AS · Boeing 737990ER · Cabin Temperature Control System
  > CONT CAB ZONE TEMP ILLUMINATED ON RECALL AND EXTINGUISHED ON MASTER CAUTION RESET. GROUNDED - YES. ON DEFERRAL.

Next page: https://openairdocs.org/aircraft/N431AS/reports.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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
```

This list as a web page: https://openairdocs.org/aircraft/N431AS/reports

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