# SDR DALA1140440997

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 2, 2011
- Submitted: June 21, 2011
- Operation: Air carrier
- Aircraft: [N997DL](https://openairdocs.org/aircraft/N997DL), registered now
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 53364
- Aircraft time: 51,531 hours, 37,739 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inoperative
- 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/DALA1140440997

## Discrepancy

DURING LINE CHECK MAINTENANCE FOUND OVERWING EMERGENCY LIGHTS INOPERATIVE.  MAINTENANCE REPLACED OVERWING EMERGENCY EXIT POWER SUPPLY AND BATTERY PER AMM 33-53.  OPERATION OF LIGHTS NOW CHECKS OK.

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