# SDR AALA202310176395

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 17, 2023
- Submitted: October 17, 2023
- Operation: Air carrier
- Aircraft: [N778AN](https://openairdocs.org/aircraft/N778AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29587
- Aircraft time: 94,250 hours, 11,744 cycles
- System (JASC): [2560 · Emergency Equipment](https://openairdocs.org/jasc/2560)
- Part: Battery
- Part number: 131W18003401
- Condition: Inoperative
- Location: Zone 800 - Doors
- 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/AALA202310176395

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DOOR 3R EMERGENCY POWER ASSIST SYSTEM (EPAS) BATTERY NOT WORKING. REMOVED AND REPLACED EPAS BATTERY ON DOOR 3R. FUNCTIONAL CHECK GOOD. PER AMM 52-11-20.

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