# SDR DALA1142639860

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2011
- Submitted: July 6, 2011
- Operation: Air carrier
- Aircraft: N769NC
- Make and model: Doug DC-9-51
- Registry model: [Doug DC-9-51](https://openairdocs.org/model/mcdonnell-douglas-dc-9-51) (OpenAirDocs)
- Aircraft serial: 47757
- Aircraft time: 2,618 hours, 2,288 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Discharged
- Location: Aft Stairwell
- 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/DALA1142639860

## Discrepancy

MAINTENANCE FOUND THE EMERGENCY LIGHTS IN THE AFT STAIRWELL AND ABOVE THE TAIL CONE SLIDE NOT FUNCTIONING DURING SERVICE CHECK.  MAINTENANCE REPLACED THE EMERGENCY LIGHT BATTERY PACKS B5-27 & B5-28 PER WIRING DIAGRAM AND THE SUBSEQUENT OPERATIONAL CHECK WAS GOOD.  AIRCRAFT HAS RETURNED TO SERVICE.

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