# SDR DALA2016012600636

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2016
- Submitted: January 26, 2016
- Operation: Air carrier
- Aircraft: N674US
- Make and model: Boeing 747451
- Aircraft serial: 30269
- Aircraft time: 66,662 hours, 8,306 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- 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/DALA2016012600636

## Discrepancy

LEFT OVERWING EMERGENCY LIGHTS INOPERATIVE AT L1699, L814 AND L1871.  REPLACED POWER SUPPLY,  CHECKED OK IAW AMM 33-51.

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