# Service difficulty reports: N839AA A list on [N839AA](https://openairdocs.org/aircraft/N839AA.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR AALA202610166446](https://openairdocs.org/sdr/AALA202610166446.md): Tire · flat · Oct 13, 2026 · N839AA · Boeing 7879 · Tire > AIRCRAFT WAS GROUNDED: DURING CRUISE "TIRE PRESS" ILLUMINATED WITH #2 & # 8 TIRES INDICATING AMBER.AFTER T/O #8 TIRE PRESSURE SLOWLY WENT TO ZERO. AS A PRECAUTION PAN-PAN DECLARED AND AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NO.8 WHEEL TIRE,THEN - [SDR AALA202607087645](https://openairdocs.org/sdr/AALA202607087645.md): Generator · faulted · Jul 7, 2026 · N839AA · Boeing 7879 · AC Generator-Alternator > AIRCRAFT WAS NOT GROUNDED: AFTER REACHING CRUISE ELEC A/C BUS R1 EICAS APPEARED WITH PROMPTED MANY OTHER FAILURES ASSOCIATED WITH POWER LOSS. FLIGHT RETURNED TO LAX FOR MAINTENANCE. EMERGENCY WAS DECLARED AND AIRCRAFT WAS OVERWEIGHT FOR LANDING. MAINTENANCE RE - [SDR AALA202606060181](https://openairdocs.org/sdr/AALA202606060181.md): Wire · disconnected · Jun 5, 2026 · N839AA · Boeing 7879 · Light System Wiring > AIRCRAFT WAS NOT GROUNDED: WIRE ON EMER LIGHT IS DISCONNECTED. MAINTENANCE RESECURED EMERGENCY LIGHT IAW AMM 33-51-06. - [SDR AALA202605279779](https://openairdocs.org/sdr/AALA202605279779.md): Battery · inoperative · May 26, 2026 · N839AA · Boeing 7879 · Emergency Lighting > AIRCRAFT WAS NOT GROUNDED: F/A FLASHLIGHT AT DOOR 3L INOP. MAINTENANCE REPLACED BATTERY FOR FLASHLIGHT AT 3L DOOR IAW AMM 25-64-00. - [SDR AALA202509020047](https://openairdocs.org/sdr/AALA202509020047.md): Light · inoperative · Aug 31, 2025 · N839AA · Boeing 7879 · Emergency Lighting > AIRCRAFT WAS NOT GROUNDED: DURING J/C 78T21033001, FOUND EMERGENCY LIGHT ASSY INOP AT SEAT 20D. MAINTENANCE REPLACED 17D FLOOR PROXIMITY LIGHT ASSY IAW AMM 31-51-06. - [SDR AALA202509028458](https://openairdocs.org/sdr/AALA202509028458.md): Light · inoperative · Aug 31, 2025 · N839AA · Boeing 7879 · Emergency Lighting > AIRCRAFT WAS NOT GROUNDED: DURING J/C 78T21033001, FOUND EMERGENCY LIGHT ASSY INOP AT SEAT17D. MAINTENANCE REPLACED 17D FLOOR PROXIMITY EMERGENCY LIGHT ASSY IAW AMM 31-51-06. - [SDR AALA202507062363](https://openairdocs.org/sdr/AALA202507062363.md): Latch · separated · Jul 5, 2025 · N839AA · Boeing 7879 · Fixed Inner Doors > AIRCRAFT WAS NOT GROUNDED: FLIGHT DEC DOOR DIFFICULT TO OPEN. DEADBOLT NOT WORKING PROPERLY WITH LATCH DOOR SEPARATE FROM SECURED DOOR FRAME. MAINTENANCE REPLACED COCKPIT DOOR DECOMPRESOR PANEL LATCH IAW AMM 52-51-14. - [SDR AALA202411045148](https://openairdocs.org/sdr/AALA202411045148.md): Damper · binds · Nov 1, 2024 · N839AA · Boeing 7879 · Fixed Inner Doors > AIRCRAFT WAS NOT GROUNDED: 1L LAV DOOR STICKS INFLIGHT F/A MARKED A HERE DOOR CATCHES WHILE INFLIGHT. MAINTENANCE REPLACED DOOR DAMPER AS PER CMM 25-49-85. - [SDR AALA202410236174](https://openairdocs.org/sdr/AALA202410236174.md): Structure · corroded · Oct 22, 2024 · N839AA · Boeing 7879 · Fuselage Miscellaneous Structure > AIRCRAFT IN BASE MAINTENANCE: CORROSION OF LAVATORY 4F-1L LOWER BASE EXTRUSION AT STA 1670 FROM LBL 39.5 TO LBL 102.5. REPAIRED PER EA 357952A. - [SDR AALA202410072951](https://openairdocs.org/sdr/AALA202410072951.md): Floor Panel · delaminated · Oct 4, 2024 · N839AA · Boeing 7879 · Fuselage Floor Panel > AIRCRAFT WAS IN BASE MAINTENANCE: MAIN CABIN LH AFT FLOOR PANEL P/N 86924730-119 IS DELAMINATED. REMOVED FAB AND INSTALLED CABIN LH AFT FLOOR PANEL P/N 869Z4730-119 IAW B787 AMM 53-01-01 AND EA 358102 / DWG 869Z4730. - [SDR AALA202404116882](https://openairdocs.org/sdr/AALA202404116882.md): Girt Bar · dirty · Apr 10, 2024 · N839AA · Boeing 7879 · Emergency Equipment > AIRCRAFT WAS NOT GROUNDED: 2L DOOR WON'T ARM. DEBRIS FOUND AND REMOVED FROM GIRT BAR FLOOR FITTING PER AMM DMC-B787-52-11-18-01B-258A-A. - [SDR AALA202402264143](https://openairdocs.org/sdr/AALA202402264143.md): Fan · seized · Feb 25, 2024 · N839AA · Boeing 7879 · Air Distribution Fan > AIRCRAFT WAS GROUNDED: CABIN AIR CPSR R2 STATUS MESSAGE. HAD 15 SECONDS OF ELECTRICAL BURNING SMELL IN FLIGHT DECK AND FWD CABIN. MAINTENANCE FOUD CABIN AIR CIRCULATION FAN SIZED, REPLACED CAC FAN IAW AMM 21-51-19. - [SDR AALA202211038995](https://openairdocs.org/sdr/AALA202211038995.md): Tire · deflated · Nov 1, 2022 · N839AA · Boeing 7879 · Tire > AIRCRAFT WAS NOT GROUNDED: AMBER MAIN LANDING GEAR NUMBER 08 SYNOPTIC INDICATION EMERGENCY WAS DECLARED INTO LHR. NUMBER 8 TYRE INDICATES 0 PSI REPLACED NUMBER 7 (AALA202211028995) AND NUMBER 8 (AALA202211023702) MAIN WHEEL ASSEMBLIES. ALL INDICATIONS NOW NORM - [SDR AALA202211033702](https://openairdocs.org/sdr/AALA202211033702.md): Tire · deflated · Nov 1, 2022 · N839AA · Boeing 7879 · Tire > AIRCRAFT WAS NOT GROUNDED: AMBER MAIN LANDING GEAR NUMBER 08 SYNOPTIC INDICATION EMERGENCY WAS DECLARED INTO LHR. NUMBER 8 TYRE INDICATES 0 PSI REPLACED NUMBER 7 (AALA202211028995) AND NUMBER 8 (AALA202211023702) MAIN WHEEL ASSEMBLIES. ALL INDICATIONS NOW NORM - [SDR AALA202204210949](https://openairdocs.org/sdr/AALA202204210949.md): Latch · unsecure · Apr 20, 2022 · N839AA · Boeing 737 · Escape Slide > AIRCRAFT WAS NOT GROUNDED: L4 DOOR SLIDE COVER LOOSE. BOTH LATCHES WONT SECURE. REPLACED RIGHT CATCH ASSEMBLY PER CMM 25-21-85. - [SDR AALA202204218976](https://openairdocs.org/sdr/AALA202204218976.md): Latch · unsecure · Apr 20, 2022 · N839AA · Boeing 737 · Escape Slide > AIRCRAFT WAS NOT GROUNDED: R1 DOOR SLIDE COVER LOOSE RIGHT LATCH WONT LATCH SECURE. REPLACED RIGHT CATCH ASSEMBLY PER CMM 25-21-85. - [SDR AALA202204066931](https://openairdocs.org/sdr/AALA202204066931.md): Cooling Fan · odor · Apr 4, 2022 · N839AA · Boeing 7879 · Cabin Cooling System > AIRCRAFT WAS GROUNDED: MULTIPLE ISSUES LEFT PACK FIRST GOT PACK MODE LEFT FOLLOWED BY LEFT PACK. PERFORMED CHECKLIST RESET GOT PACK LEFT BACK ON BUT SOON PACK MODE LEFT AGAIN. SMELL OF SULFUR ON TAKE OFF AND WHEN PACK WAS REINSTATED. SULFUR SMELL LAST 3 TAKE O - [SDR AALA202110297828](https://openairdocs.org/sdr/AALA202110297828.md): Generator · faulted · Oct 27, 2021 · N839AA · Boeing 7879 · AC Generator-Alternator > AIRCRAFT WAS GROUNDED: DUAL GENERATOR FAILURE ON LH ENGINE, FLIGHT DECLARED EMERGENCY AND RETURNED TO FIELD. REPLACED THE L2 AND L1 (AALA202110296982) VARIABLE FREQUENCY STARTER GENERATORS WITH SERVICEABLE UNITS IAW AMM 24-21-09-00B, LEAK AND OPS CHECK GOOD. - [SDR AALA202110296982](https://openairdocs.org/sdr/AALA202110296982.md): Generator · faulted · Oct 27, 2021 · N839AA · Boeing 7879 · AC Generator-Alternator > AIRCRAFT WAS GROUNDED: DUAL GENERATOR FAILURE ON LH ENGINE, FLIGHT DECLARED EMERGENCY AND RETURNED TO FIELD. REPLACED THE L2 (AALA202110297828) AND L1 VARIABLE FREQUENCY STARTER GENERATORS WITH SERVICEABLE UNITS IAW AMM 24-21-09-00B, LEAK AND OPS CHECK GOOD. - [SDR AALA202108037759](https://openairdocs.org/sdr/AALA202108037759.md): Switch · inoperative · Jul 31, 2021 · N839AA · Boeing 7879 · Door Windows > AIRCRAFT WAS NOT GROUNDED: 3L DOOR WINDOW WILL NOT OPEN. DIMMING FUNCTION INOPERATIVE. REPLACED DIMMABLE CONTROL BOX CABIN WINDOW SWITCH AT L3 DOOR PER AMM 25-21-11. - [SDR AALA202106049009](https://openairdocs.org/sdr/AALA202106049009.md): Light · inoperative · Jun 3, 2021 · N839AA · Boeing 7879 · Emergency Lighting > AIRCRAFT WAS GROUNDED: FLOOR PROXIMITY LIGHT SEAT 15H INOPERATIVE. REMOVED AND REPLACED SEAT 15H PROXIMITY LIGHT PER CMM 25-29-95. - [SDR AALA202010149010](https://openairdocs.org/sdr/AALA202010149010.md): Motor · defective · Oct 12, 2020 · N839AA · Boeing 7879 · Drag Control System > AIRCRAFT WAS GROUNDED. AT CRUISE EICAS MESSAGE "SPOILERS", NR 5 SPOILER NO OUTPUT APPEARED. A NOTICEABLE SLOW AIRCRAFT ROLL AND FLUTTER/BUFFETING WAS REPORTED BY THE FLIGHT CREW. THE AIRCRAFT DIVERTED TO ORD WHERE IT LANDED SAFELY WITHOUT FURTHER INCIDENT. - [SDR AALA202010279014](https://openairdocs.org/sdr/AALA202010279014.md): Battery · no test · Sep 29, 2020 · N839AA · Boeing 7879 · Emergency Lighting > AIRCRAFT WAS GROUNDED. DURING CARD 78C21033001 ACCOMPLISHMENT, MAINTENANCE MESSAGE 33-11411 WAS GENERATED. REPLACED BATTERY AT WCU 11.3 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK, PER AMM 33-51-07. - [SDR AALA202010299004](https://openairdocs.org/sdr/AALA202010299004.md): Battery · no test · Jul 26, 2020 · N839AA · Boeing 7879 · Emergency Lighting > AIRCRAFT WAS NOT GROUNDED. BATTERY AT WELL UNIT 24 AND 11.4 IS NOT TESTING, PER TASK CARD 2803. REPLACED WELS UNIT BATTERY AT WCU 11.4 (AALA202010279018) AND WCU 24 (AALA202010299004), PER AMM 33-51-07. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED. - [SDR AALA202010279018](https://openairdocs.org/sdr/AALA202010279018.md): Battery · no test · Jul 26, 2020 · N839AA · Boeing 7879 · Emergency Lighting > AIRCRAFT WAS NOT GROUNDED. BATTERY AT WELL UNIT 24 AND 11.4 IS NOT TESTING, PER TASK CARD 2803. REPLACED WELS UNIT BATTERY AT WCU 11.4 (AALA202010279018) AND WCU 24 (AALA202010299004), PER AMM 33-51-07. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED. - [SDR AALA2020031989008](https://openairdocs.org/sdr/AALA2020031989008.md): Connector · loose · Mar 17, 2020 · N839AA · Boeing 7879 · Light System Wiring > AIRCRAFT WAS GROUNDED: R3, EXIT SIGN LOCATOR LIGHT INOPERATIVE. MAINTENANCE TROUBLESHOT PER WDM B787-81205-48112, FOUND LOOSE CONNECTOR ON WIRE HARNESS AND SECURED CONNECTOR. ## 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 = 'N839AA' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N839AA/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.