# SDR Y2PA2011101000027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 10, 2011
- Submitted: October 10, 2011
- Operation: Air carrier
- Aircraft: N949NS
- Make and model: Doug MD 83
- Registry model: [Doug MD 83](https://openairdocs.org/model/mcdonnell-douglas-md-83) (OpenAirDocs)
- Aircraft serial: 53022
- Aircraft time: 54,433 hours, 28,988 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 60030451
- Part serial: 27038
- Condition: Unserviceable
- Location: Emergency Light
- 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/Y2PA2011101000027

## Discrepancy

FOLLOWING ENGINE CHANGE, MX FOUND DURING A CHECK OF THE ACFT THAT THE EMERGENCY LIGHTING IN CABIN CEILING, BETWEEN STA 640 - 700, WOULD GO OUT AFTER 10 SECONDS OF OPERATION.  MX RE & R THE BATTERY PACK ASSY IAW MM 33-53-00.  THE SYS THEN OPS CHECKED GOOD.  MX REPORTS THAT THE ACFT HAS BEEN DOWN FOR ENGINE CHANGE SINCE OCTOBER 1.

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