# SDR WRLA20100506356

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2010
- Submitted: May 7, 2010
- Operation: Air carrier
- Aircraft: N277WA
- Make and model: Doug MD-11
- Registry model: [Doug MD-11](https://openairdocs.org/model/mcdonnell-douglas-md-11) (OpenAirDocs)
- Aircraft serial: 48743
- Aircraft time: 45,540 hours, 8,073 cycles
- Engine: Pwa PW4462
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Discharged
- Location: Cabin
- 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/WRLA20100506356

## Discrepancy

EMERGENCY LIGHT TEST FAILED NR 4 BATTERY PACK.  REMOVED AND REPLACED NR 4 BATTERY PACK.

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