# SDR AALA202410248324

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 23, 2024
- Submitted: October 24, 2024
- Operation: Air carrier
- Aircraft: [N873BB](https://openairdocs.org/aircraft/N873BB), registered now
- Make and model: Boeing 787-8
- Registry model: [Boeing 787-8](https://openairdocs.org/model/boeing-787-8) (OpenAirDocs)
- Aircraft serial: 65993
- Aircraft time: 13,805 hours, 2,062 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 100260201
- Condition: Inoperative
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202410248324

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: PER CARD 78T21033001 OPERATIONAL CHECK- EMERGENCY LIGHT SYSTEM,NEED TO REPLACE WBU 8 BATTERRY. MAINTENANCE REPLACED WELS BATTERY AT WBU 08 IAW AMM 33-51-07

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