# SDR DALA2016010500034

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 5, 2016
- Submitted: January 6, 2016
- Operation: Air carrier
- Aircraft: N947DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 49878
- Aircraft time: 68,483 hours, 51,072 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Cabin
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2016010500034

## Discrepancy

MAINTENANCE FOUND THAT EMERGENCY LIGHTS WOULD NOT ILLUMINATE USING THE F/A TEST SWITCH.  BATTERY PACK B5-49 WAS REPLACED AND THE LIGHTS TESTED OK.

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