# SDR NWAA093705520

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 2009
- Submitted: October 30, 2009
- Operation: Air carrier
- Aircraft: N520US
- Make and model: Boeing 757251
- Aircraft serial: 23208
- Aircraft time: 74,998 hours, 30,836 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- 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/NWAA093705520

## Discrepancy

ON 3 DAY FLIGHT DECK MODIFICATION FOUND RT DOOR EMERGENCY LIGHT INOP.  MAINTENANCE REPLACED POWER SUPPLY BATTERY.  OPS CHECK OKAY.  RETURNED TO SERVICE.

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