# SDR AALA201612099011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2016
- Submitted: December 9, 2016
- Operation: Air carrier
- Aircraft: N279AY
- Make and model: Airbus A330-243
- Registry model: [Airbus A330-243](https://openairdocs.org/model/airbus-a330-243) (OpenAirDocs)
- Aircraft serial: 1011
- Aircraft time: 30,761 hours, 4,375 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 321430
- Condition: No Test
- Location: Emergency Light
- 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/AALA201612099011

## Discrepancy

WHILE ACCOMPLISHING A 23 CHECK,  THE EMERGENCY POWER SUPPLY UNIT BATTERY AT THE R4 DOOR (18WL) FAILED TO TEST. REPLACED THE BATTERY IAW AMM 33-51-38.

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