# SDR NWAA 091535525

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2009
- Submitted: May 7, 2009
- Operation: Air carrier
- Aircraft: [N525US](https://openairdocs.org/aircraft/N525US), registered now
- Make and model: Boeing 757251
- Aircraft serial: 23619
- Aircraft time: 66,069 hours, 27,352 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Emergency Lights
- 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/NWAA%20091535525

## Discrepancy

DURING AN OVERNIGHT LINE CHECK, THE RIGHT AFT CABIN DOOR EMERGENCY EXIT LIGHT WAS FOUND TO BE INOPERATIVE.  MAINTENANCE FOUND THE ASSOCIATED BATTERY PACK TO BE LOOSE AND DISCHARGED.  THE BATTERY PACK WAS REPLACED AND THE SYSTEM OPERATED NORMALLY WITH THE NEW BATTERY PACK.

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