# SDR AALA2020071549001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2020
- Submitted: July 15, 2020
- Operation: Air carrier
- Aircraft: [N766AN](https://openairdocs.org/aircraft/N766AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 32880
- Aircraft time: 68,181 hours, 8,375 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Battery Pack
- Part number: 285W0955102
- Part serial: D02837
- Condition: Discharged
- Location: L1 Door
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2020071549001

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE - L1 DOOR, EPAS (EMERGENCY POWER ASSIST SYSTEM) BATTERY DOES NOT FLASH GREEN WHEN ARMED.  REMOVED AND REPLACED EPAS BATTERY PACK PER AMM 52-11-20 (AALA202007149001), OPERATIONAL TEST GOOD.  INSTALLED SERVICEABLE 9-VOLT BACK-UP BATTERY (2 EA) PER AMM 52-11-20 (AALA202007149002), OPERATIONAL TEST GOOD.

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