# SDR DALA1128547109

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 2011
- Submitted: April 26, 2011
- Operation: Air carrier
- Aircraft: [N709DN](https://openairdocs.org/aircraft/N709DN), registered now
- Make and model: Boeing 777232
- Aircraft serial: 40559
- Aircraft time: 5,705 hours, 525 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Fuse
- Condition: Failed
- Location: Emergency Lights
- 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/DALA1128547109

## Discrepancy

DURING A MAINTENANCE VISIT, THE EMERGENCY LIGHT IN BUSINESS CLASS, FORWARD LOWER SECTION WAS FOUND INOPERATIVE.  MAINTENANCE FOUND FUSE 3 IN BATTERY PACK M33094 BAD AND REPLACED IT.  SYSTEM OPERATION WAS NORMAL AFTER THE FUSE WAS REPLACED. (2011-D0510)

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