# Service difficulty reports: N492AS

A list on [N492AS](https://openairdocs.org/aircraft/N492AS.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 4 · 165 reports

- [SDR ASAA2026031864996](https://openairdocs.org/sdr/ASAA2026031864996.md): Skin · damaged · Mar 18, 2026 · N492AS · Boeing 737990ER · Fuselage Main, Plate/Skin
  > LIGNTNING STRIKE TO FUSELAGE SKIN AND PRODUCTION FASTENER AT STA 500I 1" ABOVE STR 27L. GROUNDED - YES. REMOVED AND REPAIRED LIGHTNING STRIKE DAMAGE AT STA 500I 1" ABOVE STR 27L IAW ASA EA 900ER-53EA-30039 REV 00 THIS REPAIR IS CATEGORY B WITH STAGE 1 (STATIC
- [SDR ASAA2026030565017](https://openairdocs.org/sdr/ASAA2026030565017.md): Skin · damaged · Mar 5, 2026 · N492AS · Boeing 737990ER · Fuselage Main, Plate/Skin
  > FUSELAGE SKIN UNDER PANEL 191D @ STA 500K HAS LIGHTENING STRIKE. GROUNDED - YES. EVALUATED DAMAGE TO FUSELAGE SKIN AT STA 500K (UNDER PANEL191D) @ STR 28L. FOUND TO BE OUT OF LIMITS DUE TO HOLE DIAMETER & PROXIMITY TO DRAIN PLUG HOLE. GENERATED RFTS. REPAIRED
- [SDR ASAA2026030564995](https://openairdocs.org/sdr/ASAA2026030564995.md): Skin · damaged · Mar 5, 2026 · N492AS · Boeing 737990ER · Fuselage Main, Plate/Skin
  > LIGHTNING STRIKE TO FUSELAGE SKIN AT STA 500E+8" AT STR 28L. GROUNDED - YES. REMOVED AND REPAIRED LIGHTNING STRIKE DAMAGE AT STA 500E + 8" AT STR 28L IAW ASA EA 900ER-53EA-30036 REV 00 THIS REPAIR IS CATEGORY B WITH STAGE 1 APPROVAL STAGE 2 APPROVAL IS REQUIRE
- [SDR ASAA2025122863396](https://openairdocs.org/sdr/ASAA2025122863396.md): Indicator · illuminated · Dec 28, 2025 · N492AS · Boeing 737990ER · Emergency Lighting
  > FA REPORTS DURING PREFLIGHT RED LIGHT ILLUMINATED ON AFT FA PANEL. GUARDED EMERGENCY EXIT SWITCH. GROUNDED - YES. CYCLED AFT FA PANEL EMERGENCY LIGHT SWITCH. PERFORMED OPS CHECK IAW AMM 33-51-00 SMC NOTIFIED.
- [SDR ASAA2025062759121](https://openairdocs.org/sdr/ASAA2025062759121.md): Power Supply · intermittent · Jun 27, 2025 · N492AS · Boeing 737990ER · Emergency Lighting
  > R1 DOOR EMERGENCY LIGHTS INTERMITTENTLY COME ON WITH SYSTEM IN OFF. GROUNDED - YES. REMOVED AND INSTALLED SERVICEABLE R-1 DOOR EMERG LIGHTS POWER SUPPLY S/N 341788, OPS CHECKS GOOD IAW B737-900 AMM 33-51-06-960-806.
- [SDR ASAA2025052259036](https://openairdocs.org/sdr/ASAA2025052259036.md): Battery Pack · no test · May 22, 2025 · N492AS · Boeing 737990ER · Emergency Lighting
  > 4 EMERGENCY LIGHT BATTERIES FAILED 15 MINUTE TIMER CHECK. GROUNDED - YES. REMOVED AND INSTALLED SERVICEABLE EMERG LIGHT BATTERIES S/N 420477, 408193, 407875 AND 420479. OP CHECKS GOOD IAW B737-900 AMMM 33-51-06-960-805.
- [SDR ASAA2024032648667](https://openairdocs.org/sdr/ASAA2024032648667.md): Power Supply · inoperative · Mar 26, 2024 · N492AS · Boeing 737990ER · Emergency Lighting
  > WHILE PERFORMING TASK CARD 78233008 FOUND MULTIPLE EMERGENCY LIGHT BATTERY PACKS REQUIRE REPLACEMENT. GROUNDED - YES. REMOVED AND REPLACED MULTIPLE INOP EMERGENCY LIGHT BATTERY PACKS REF AMM 33-51-06. OPERATIONAL CHECK GOOD, NO DEFECTS NOTED.
- [SDR ASAA2023111146120](https://openairdocs.org/sdr/ASAA2023111146120.md): Unknown · unknown · Nov 11, 2023 · N492AS · Boeing 737990ER · APU Start/Ignition System
  > CSS: 1 APU WOULD NOT START (WITH FAULT LIGHT) AT 340. 2 APU WOULD NOT START (FAILED TO START AT 340) 2 TOTAL FAILED STARTS. GROUNDED - YES. APU STARTED NORMALLY ON GROUND. PLACED ON MEL 49-99A. REF B737-900 AMM 49-11-00-860-801. PER SEAMC OK TO CLEAR MEL 49-99
- [SDR ASAA2023110446033](https://openairdocs.org/sdr/ASAA2023110446033.md): Unknown · unknown · Nov 4, 2023 · N492AS · Boeing 737990ER · Flight Management Computing Hardware System
  > CREW REPORTS BOTH CDU'S SHOW SINGLE FMC OPERATION IN SCRATCH PADS & FO ND SHOWS MAP FLAG. GROUNDED - YES. PERFORMED FMC BITE L & R. BOTH SIDES SHOW THE OPPOSITE FMC HAD FAILED. CYCLED BOTH FMC COMPUTER CB'S REF FIM 34-61 TASK 807. BOTH FMC FAULTS CLEARED & FIM
- [SDR ASAA2023101145580](https://openairdocs.org/sdr/ASAA2023101145580.md): Unknown · unknown · Oct 11, 2023 · N492AS · Boeing 737990ER · HF Communications System
  > HF/SAT XFER SWITCH NUMBER 1 SAT LIGHT WILL NOT ILLUMINATE. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023100545452](https://openairdocs.org/sdr/ASAA2023100545452.md): Unknown · unknown · Oct 5, 2023 · N492AS · Boeing 737990ER · Cabin Temperature Control System
  > AFTER ENGINE START, AFTER MASTER RECALL, CONT. CABIN ZONE TEMP LIGHT ILLUMINATED. LIGHT EXTINGUISHED WHEN RESET. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023082644786](https://openairdocs.org/sdr/ASAA2023082644786.md): Unknown · unknown · Aug 26, 2023 · N492AS · Boeing 737990ER · Flight Management Computing Hardware System
  > AFTER LANDING LEFT FMC FAILED AND RECOVERED MULTIPLE TIMES. GROUNDED - YES. PERFORMED FMC BITE PROCEDURE FOUND FAULT FMC-L PGM FAULT AS PER FIM 34-61 TASK 801, PERFORMED FIM FMC HARDWARE/SOFTWARE FAULTS-FAULT ISOLATION, OPENED C/B A6 AT P18-2 (FMCS CMPTR-1) AN
- [SDR ASAA2023081844815](https://openairdocs.org/sdr/ASAA2023081844815.md): Blade · degraded · Aug 18, 2023 · N492AS · Boeing 737990ER · Turbine Engine Air Inlet Section
  > #2 ENGINE TREND DATA STILL SHOWS A RISE IN LOW PRESSURE ROTOR VIBRATION LEVELS WITH FAN SCATTER. (#PRI2/ETOPS)CNR 20230817065. TASK CARD 78472010. GROUNDED - YES. C/W TSR VIBES WITHIN LIMITS REPLACED 5 PLATFORMS.
- [SDR ASAA2023081344569](https://openairdocs.org/sdr/ASAA2023081344569.md): Unknown · unknown · Aug 13, 2023 · N492AS · Boeing 737990ER · Flight Management Computing Hardware System
  > VTK DISPLAYED ON CAPTAIN'S NAVIGATION DISPLAY WITH LOSS OF FMC DATA ON CAPTAIN'S CDU. MAP WAS NOT DISPLAYED. AFTER 1 MINUTE NORMAL OPERATION ON CAPTAINS NAV DISPLAY AND CDU WAS RESTORED. LOSS OF FMC DATA ONLY ON CAPTAIN'S CDU. GROUNDED - YES. PERFORMED FMCS OP
- [SDR ASAA2023071744126](https://openairdocs.org/sdr/ASAA2023071744126.md): Windshield · damaged · Jul 17, 2023 · N492AS · Boeing 737990ER · Flight Compartment Windows
  > FO #1 WINDOW HAS EVIDENCE OF ARCING IN UPPER I/B CORNER. GROUNDED - YES. MOVED RIGHT FRONT WHCU TAP TP LUG 3 OF TB5012 FOR INSTALLATION OF NEW H11 R1 WINDOW REF WDM 30-41-12.EOEI 60950 INSP 86 93162. REMOVED FO WINDOW PER AMM 56-11-11-400-801. INSTALLED NEW WI
- [SDR ASAA2023062143821](https://openairdocs.org/sdr/ASAA2023062143821.md): Battery Pack · no test · Jun 21, 2023 · N492AS · Boeing 737990ER · Emergency Lighting
  > POWER SUPPLY INSTALLED NEW THE RIGHT HAND AFT ENTRY DOOR DOES NOT PASS CAPACITY CHECK. GROUNDED - YES. REMOVED AND REPLACED R/H AFT ENTRY DOOR EMERGENCY LIGHT BATTERY PACK S/N 409561 OPS CHECKS GOOD IAW B737-900ER AMM 33-51-06-960-805 STEP E(4-6).
- [SDR ASAA2023061943637](https://openairdocs.org/sdr/ASAA2023061943637.md): Unknown · unknown · Jun 19, 2023 · N492AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY EXIT LIGHT ABOVE OVERHEAD BIN AT ROW 27 ABC INOP. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023061643621](https://openairdocs.org/sdr/ASAA2023061643621.md): Unknown · unknown · Jun 16, 2023 · N492AS · Boeing 737990ER · Flight Management Computing Hardware System
  > F/O MCDU R5 AND R6 BUTTON PAINT WORN OFF (FMC). GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023052343342](https://openairdocs.org/sdr/ASAA2023052343342.md): Unknown · unknown · May 23, 2023 · N492AS · Boeing 737990ER · Pneumatic System
  > ISOLATION VALVE DOES NOT OPEN WHEN SELECTED. APPEARS TO OPERATE CORRECTLY IN "AUTO"(BOTH PACKS IN AUTO, BOTH ENGINES AND APU BLEED ON, R DUCT PRESS &0 WITH ISOL OPEN. GROUNDED - YES. VERIFIED PILOT'S DISCREPANCY. VALVE DOESN'T OPEN INTERMITTENTLY, BUT WORKS IN
- [SDR ASAA2023051643239](https://openairdocs.org/sdr/ASAA2023051643239.md): Transceiver · inoperative · May 16, 2023 · N492AS · Boeing 737990ER · HF Communications System
  > HF #2 APPEARS TO BE INOP. NO STATIC, NO TUNING TONE. NOTHING ON CARDINAL FREQ'S. GROUNDED - YES. CONFIRMED #2 HF INOP. RMVD & RPLCD #2 HF TRANSCEIVER REF B737-900 AMM 23-11-21.
- [SDR ASAA2023051243387](https://openairdocs.org/sdr/ASAA2023051243387.md): Nut Plate · corroded · May 12, 2023 · N492AS · Boeing 737990ER · Engine (Turbine/Turboprop)
  > REF T/C #78472000 #1 ENG INLET AND FAN BLADES- DETAILED INSPECTION. FOUND 10 EACH NUT PLATES ON O/B FAN FRAME CASE THAT HAVE CORROSION UNDER THEM THAT IS ON THE FAN FRAME CASE. ALL LOCATIONS ARE FOR THE FWD FASTENERS OF THE AFT O/B ACOUSTICAL PANELS. 1 EA #4 P
- [SDR ASAA2023040942784](https://openairdocs.org/sdr/ASAA2023040942784.md): Unknown · unknown · Apr 9, 2023 · N492AS · Boeing 737990ER · HF Communications System
  > SAT COM INOP, TRIED 3 TIMES TO CALL DISPATCH A-COULD HEARD DISPATCH FINE, HE COULDN'T HEAR US. GROUNDED - YES. OPERATIONAL CHK OF SAT COM WITH DISPATCH OPS CHK NORMAL. COM'S COMING THROUGH BOTH WAYS REF B737-900 AMM 23-15-00.
- [SDR ASAA2023040242702](https://openairdocs.org/sdr/ASAA2023040242702.md): Gasket · leaking · Apr 2, 2023 · N492AS · Boeing 737990ER · Engine Fuel Distribution
  > FOUND FUEL LINE LEAKING AT FUEL OIL HEATER SERVO. GROUNDED - YES. REMOVED AND REPAIRED GASKET ON FUEL LINE AT SURVO FUEL OIL HEATER PER B737-900 AMM 73-11-10 LEAK AND OPS CHECK GOOD.
- [SDR ASAA2023040242701](https://openairdocs.org/sdr/ASAA2023040242701.md): Heater · leaking · Apr 2, 2023 · N492AS · Boeing 737990ER · Engine Fuel Distribution
  > FUEL LEAKING AT FUEL OIL HEAT SERVO CAP. GROUNDED - YES. REMOVED AND REPLACED SERVO FUEL HEATER REF. B737-900 AMM 73-11-07. OPS CHECK GOOD. NO LEAKS DETECTED.
- [SDR ASAA2023032042435](https://openairdocs.org/sdr/ASAA2023032042435.md): Battery Pack · discharged · Mar 20, 2023 · N492AS · Boeing 737990ER · Emergency Lighting
  > ROWS 25,26 AND ROWS 30,31 RH SIDE EMERGENCY AISLE LIGHTS INOP REF ASA T/C 78233008. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK FOR SEAT ROW 25,26 & SEAT ROW 30,31 EMERGENCY AISLE LIGHT OPS CHECKS GOOD REF B737-900 AMM 33-51-06.
- [SDR ASAA2023030642213](https://openairdocs.org/sdr/ASAA2023030642213.md): Unknown · unknown · Mar 6, 2023 · N492AS · Boeing 737990ER · Flight Management Computing Hardware System
  > DURING CRUISE THE RIGHT FMC FAILED. GROUNDED - YES. RAN THE FMC FAIL CHECKLIST AND IT RESTORED RIGHT FMC OPERATION.
- [SDR ASAA2023030442171](https://openairdocs.org/sdr/ASAA2023030442171.md): Unknown · unknown · Mar 4, 2023 · N492AS · Boeing 737990ER · Autopilot System
  > #1 MACH AIRSPEED WARNING TEST WILL NOT TEST. GROUNDED - YES. ACCOMPLISHED AIRCRAFT PWR RESET PER B737-900 AMM 20-16-99OPS CHECKS NORMAL BOTH #1 AND #2 MACH TEST. REF AMM 22-11-24.
- [SDR ASAA2023011741555](https://openairdocs.org/sdr/ASAA2023011741555.md): Platform · damaged · Jan 17, 2023 · N492AS · Boeing 737990ER · Turbine Engine Air Inlet Section
  > ENG #1 BLADE #24 PLATFORM DAMAGED. GROUNDED - YES. REMOVED AND REPLACED # 24 BLADE PLATFORM ON ENG #1 REF B737-900 AMM 72-21-02-000-801-FOO AND AMM 72-21-02-400-801-FOO.
- [SDR ASAA2023011541539](https://openairdocs.org/sdr/ASAA2023011541539.md): Blade · worn · Jan 15, 2023 · N492AS · Boeing 737990ER · Turbine Engine Air Inlet Section
  > #1 ENGINE #1 FAN BLADE HAS CU-NI-IN COATING DAMAGE PN: 340-001-036-0 S/N DM122323-M WEIGHT: 212890. GROUNDED - YES. ENGINE #1 REPLACED #1 FAN BLADE ALONG WITH #13 FAN BLADE IN PAIR. BLADES REPLACED IN REF B737-900 AMM TASK 72-21-02-000-802-F00. WHILE ACCOMPLIS
- [SDR ASAA2022120741102](https://openairdocs.org/sdr/ASAA2022120741102.md): Acm · damaged · Dec 7, 2022 · N492AS · Boeing 737990ER · Cabin Cooling System
  > REF ASA DEFECTS #60449013. DURING T/S OF L/H PACK LT ILLUMINATED FOUND L/H ACM HARD TO TURN AND LOW AIR FLOW WHEN SELECTED HIGH. GROUNDED - YES. REMOVED AND REPLACED L/H ACM REF B737-900 AMM 21-51-04. REPLACED BROKEN CLAMP AND O-RING PACKING ON HIGH PRESS WATE
- [SDR ASAA2022120741043](https://openairdocs.org/sdr/ASAA2022120741043.md): Cooling Fan · inoperative · Dec 7, 2022 · N492AS · Boeing 737990ER · Weather Radar System
  > WHILE WORKING AD 20211420-MULTI-1 NOTICED WEATHER RADAR COOLING FAN INOP. GROUNDED - YES. REMOVED & REPLACED WEATHER RADAR RT COOLING FAN REF B737-900 AMM 34-43-51. OPS CHECK GOOD. OPS TEST OF RT REF AMM 34-43-00. OPS TEST GOOD.
- [SDR ASAA2022120141004](https://openairdocs.org/sdr/ASAA2022120141004.md): Acm · inoperative · Dec 1, 2022 · N492AS · Boeing 737990ER · Cabin Cooling System
  > CONT CAB ZONE TEMP CONTROLLER ILLUMINATED ON RECALL AFTER ENGINE START EXTINGUISHED WHEN RESET. GROUNDED - YES. AIR CYCLE MACHINE WAS REMOVED AND REPLACED ON LOG PAGE 60449025, RESET SYSTEM AND TESTED LH PACK CONTROLLER IAW AMM 21-61-00-700-806-002, ETOPS GROU
- [SDR ASAA2022112240896](https://openairdocs.org/sdr/ASAA2022112240896.md): A/C Pack · malfunctioned · Nov 22, 2022 · N492AS · Boeing 737990ER · Cabin Cooling System
  > LEFT PACK ILLUMINATED ON RECALL EXTINGUISHES W/RESET. GROUNDED - YES. ACCOMPLISHED PACK TEMP CONTROLLER BITE FOUND L/H PACK TCV FAULTED, FAULT RESETS. OPS TEMP CONTROL SYSTEM OPS GOOD. REF B737-900 AMM 21-61-06. PACK LIGHT REMAINS EXTINGUISHED ON MC RECALL.
- [SDR ASAA2022112040850](https://openairdocs.org/sdr/ASAA2022112040850.md): Coupler · failed · Nov 20, 2022 · N492AS · Boeing 737990ER · Communications System Wiring
  > HF RADIOS 1 & 2 WILL NOT TRANSMIT OR RECEIVE, BUT CAN HEAR VOICE OF OTHER TRANSMISSIONS. DISPATCH CALLED ARINC, WE COULD NOT RECEIVE SELCAL CHECK. GROUNDED - YES. AIR TURNBACK. REMOVED AND REPLACED #2 HF COUPLER IAW AMM 23-11-61.
- [SDR ASAA2022102040413](https://openairdocs.org/sdr/ASAA2022102040413.md): Transceiver · faulty · Oct 20, 2022 · N492AS · Boeing 737990ER · HF Communications System
  > HF #2 IS INOPERATIVE. GROUNDED - YES. REMOVED AND REPLACED #2 HF RT CHECK OK PER B737-900 AMM 23-11-21.
- [SDR ASAA2022101540313](https://openairdocs.org/sdr/ASAA2022101540313.md): Transceiver · failed · Oct 15, 2022 · N492AS · Boeing 737990ER · HF Communications System
  > HF#2 DOESNT TRANSMIT OR RECIEVE. GROUNDED - YES. REMOVED AND REPLACED #2 HF TRANSCEIVER REF B737-900 AMM 23-11-21.
- [SDR ASAA2022101340273](https://openairdocs.org/sdr/ASAA2022101340273.md): Autoland Sys · failed · Oct 13, 2022 · N492AS · Boeing 737990ER · Autopilot System
  > FAILED AUTOLAND APPROACH WARNING ON FLARE (NO AIII) RUNWAY 34L. GROUNDED - YES. DFCS FAULT HISTORY SHOWS NO DEFECTS. ACCOMPLISHED DFCS LAND VERIFY TEST (GP 49) REF B737-900 AMM 22-11-00/201 & HGS SYSTEM TEST REF HGS MODEL 4000 SYSTEM SMM 34-36-00, OPS CK NML.
- [SDR ASAA2022090239790](https://openairdocs.org/sdr/ASAA2022090239790.md): Lamp · cracked · Sep 2, 2022 · N492AS · Boeing 737990ER · Emergency Lighting
  > ASA TC 78233008 - LEFT WING GROUND EMERGENCY EXIT LT INOP. GROUNDED - YES. RELAMPED LEFT WING GROUND EMERGENCY EXIT LIGHT, OPS CHECKS OK. REF B737-900 AMM 33-51-04.
- [SDR ASAA2022090239777](https://openairdocs.org/sdr/ASAA2022090239777.md): Idg · leaking · Sep 2, 2022 · N492AS · Boeing 737990ER · Alternator-Generator Drive
  > DURING INLET INSPECTION OF #2 ENG S/N 863544 FOUND EVIDENCE OF IDG AIR/OIL COOLER LEAKING. GROUNDED - YES. REMOVED AND REPLACE #2 ENG IDG AIR/OIL COOLER REF B737-900 AMM 24-11-21.
- [SDR ASAA2022082039576](https://openairdocs.org/sdr/ASAA2022082039576.md): Valve · leaking · Aug 20, 2022 · N492AS · Boeing 737990ER · Engine Cooling System
  > STEADY STREAM OF FUEL COMING FROM DRAIN LINE FOR HPTACC VALVE ON #1 ENGINE. GROUNDED - YES. REMOVED AND REPLACED THE #1 HPTACC VALVE PER B737-900 AMM 75-21-01-000-801-F00 / 75-21-01-400-801-F00.
- [SDR ASAA2022082039575](https://openairdocs.org/sdr/ASAA2022082039575.md): Harness · chafed · Aug 20, 2022 · N492AS · Boeing 737990ER · Fuel Controlling System
  > FOUND CHAFED MW0311 HARNESS ON THE #1 ENGINE. GROUNDED - YES. REPLACED #1 ENGINE MW0311 HARNESS. REF B737-900 AMM 73-21-06 PARTA 4.E.(3). AND 5.E.(3), (4). ACCOMPLISHED ALL INSTALLATION TESTS REF AMM 73-21-06. ALL TESTS NORMAL.
- [SDR ASAA2022081739615](https://openairdocs.org/sdr/ASAA2022081739615.md): Control Valve · failed · Aug 17, 2022 · N492AS · Boeing 737990ER · Cabin Cooling System
  > RIGHT PACK LIGHT ILLUMINATES ON RECALL. EXTINGUISHES ON RESET. GROUNDED - YES. REMOVED & REPLACED RIGHT PACK TCV. REF B737-900 AMM 21-51-10-000-801 & AMM 21-51-10-400-801.
- [SDR ASAA2022062938899](https://openairdocs.org/sdr/ASAA2022062938899.md): Controller · fault message · Jun 29, 2022 · N492AS · Boeing 737990ER · Cabin Cooling System
  > ON RECALL PACK LIGHT ILLUMINATED ON RIGHT PACK. GROUNDED - YES. ACCOMPLISHED PZTC BITE REF B737-900 AMM 21-61-00. FLAGGED #2 CONTROLLER TCV FOR PREVIOUS FLT. RESET AND RE-ACCOMPLISHED BITE. NO DEFECTS NOTED.
- [SDR ASAA2022060438581](https://openairdocs.org/sdr/ASAA2022060438581.md): Control Panel · inoperative · Jun 4, 2022 · N492AS · Boeing 737990ER · Autopilot System
  > N1 LIGHT ON MCP INOP. GROUNDED - YES. ON DEFERRAL. REMOVED AND REPLACED DFCS MODE CONTROL PANEL REF B737-900 AMM 22-11-34. OPS CHECK GOOD. ALL TEST PASS.
- [SDR ASAA2022060338557](https://openairdocs.org/sdr/ASAA2022060338557.md): Circuit Breaker · popped · Jun 3, 2022 · N492AS · Boeing 737990ER · Independent Position Determining System
  > WEATHER RADAR FAIL. GROUNDED - YES. FOUND WEATHER RADAR RT C/B OUT AT P6-1, D13. NO HISTORY, RESET C/B. REF B737-900 AMM 20-60-01. WEATHER RADAR BITE TEST OPS NORMAL, REF B737-900 FIM 34-43 TASK 801.
- [SDR ASAA2022051938440](https://openairdocs.org/sdr/ASAA2022051938440.md): Valve · leaking · May 19, 2022 · N492AS · Boeing 737990ER · Engine Cooling System
  > A/C RESTRICTED FROM ETOPS SERVICE DUE TO #2 ENGINE HPTACC DRAIN LEAKAGE. GROUNDED - YES. TOP DEFERRAL CLEARED. HPTACC REPLACED PER B737-900 AMM 75-21-01 (ASA L/P 60492581). ETOPS SERVICE RESTORED.
- [SDR ASAA2022032337900](https://openairdocs.org/sdr/ASAA2022032337900.md): Rotor · vibrates · Mar 23, 2022 · N492AS · Boeing 737990ER · Turbine Engine Air Inlet Section
  > #1 ENGINE TREND DATA SHOWS INDICATION ERRORS HAVE BEEN RESOLVED. LOW PRESSURE ROTOR VIBRATION LEVELS CONTINUE TO BE HIGHER THAN DESIRED. GROUNDED - YES. ACCOMPLISHED B737-900 AMM TASK 71-00-00-750-808-F00 TEST 14B- FAN TRIM BALANCE. ACCOMPLISHED ENG #1 BALANCE
- [SDR ASAA2022030437642](https://openairdocs.org/sdr/ASAA2022030437642.md): Wire Harness · faulted · Mar 4, 2022 · N492AS · Boeing 737990ER · Powerplant System
  > WHILE ACCOMPLISHING TSR 711655 FOUND HARNESS MW0313 OPEN FROM AVM TO NOB, FOR #1 ENGINE. GROUNDED - YES. REMOVED AND REPLACED NACELLE WIRING HARNESS MW0313 FOR #1 ENGINE REF B737-900 AMM 71-51-03/401.
- [SDR ASAA2021122536996](https://openairdocs.org/sdr/ASAA2021122536996.md): Unknown · none · Dec 25, 2021 · N492AS · Boeing 737990ER · Turbine Engine Air Inlet Section
  > PER TC 78472010 #1 ENG FAN BLADE LUBE SPACER #1 ELASTORMER IS DISBONDED. GROUNDED - YES. REMOVED AND REPLACED #1 SPACER REF T/C 78472010.
- [SDR ASAA2021122536995](https://openairdocs.org/sdr/ASAA2021122536995.md): Unknown · none · Dec 25, 2021 · N492AS · Boeing 737990ER · Turbine Engine Air Inlet Section
  > PERT/C 78472010 #1 ENG. FAN BLADE LUBE #2 FAN BLADE CU-NE-IN COATING IS MISSING BEYOND LIMITS ON CONCAVE SIDE. GROUNDED - YES. REMOVED & REPLACED #2 & #14 FAN BLADES REF T/C 78472010.

Next page: https://openairdocs.org/aircraft/N492AS/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 = 'N492AS' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N492AS/reports

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