# SDR WRLA20121229577

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 29, 2012
- Submitted: January 3, 2013
- Operation: Air carrier
- Aircraft: [N273WA](https://openairdocs.org/aircraft/N273WA), registered now
- Make and model: Doug MD-11
- Registry model: [Doug MD-11](https://openairdocs.org/model/mcdonnell-douglas-md-11) (OpenAirDocs)
- Aircraft serial: 48519
- Engine: Pwa PW4462
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 5519881
- Part serial: ATLB1461
- Condition: Failed
- Location: Cabin
- 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/WRLA20121229577

## Discrepancy

DURING PRE-FLIGHT INSPECTION FOUND NR 2 EMERGENCY BATTERY PACK FAILED TEST (NOTE: NR 2 BATTERY PACK REMOVED).  REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLY NR 2 BATTERY IAW MM 33-51-01.  OPS CHECK OK.

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