# SDR AALA20171109004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2017
- Submitted: November 15, 2017
- Operation: Air carrier
- Aircraft: [N757AN](https://openairdocs.org/aircraft/N757AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 32636
- Aircraft time: 64,208 hours, 8,088 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Battery Pack
- Part number: 285W0955102
- Part serial: D02421
- Condition: Discharged
- Location: R3 Door
- Part time: 42,710 hours, 4,997 cycles
- 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/AALA20171109004

## Discrepancy

AIRCRAFT WAS NOT GROUNDED.  R3 DOOR EMERGENCY POWER ASSIST SYSTEM FAILED TEST.  REMOVED AND REPLACED EPAS BATTERY PACK PER AMM 52-11-20.  OPERATIONAL CHECK GOOD.

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