# SDR DALA2017022401549

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2017
- Submitted: February 24, 2017
- Operation: Air carrier
- Aircraft: N923DN
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53585
- Aircraft time: 44,860 hours, 30,064 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: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017022401549

## Discrepancy

EMERGENCY OVERHEAD LIGHTS BETWEEN 1DE TO 11CDE INOPERATIVE. REMOVED AND REPLACED BATTERY PACK AND EMERGENCY POWER SUPPLY B5-227 IAW MM.  OPERATION CHECKS GOOD.

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