# SDR HNAA2017112800380

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2017
- Submitted: November 28, 2017
- Operation: Air carrier
- Aircraft: N331EN
- Make and model: Dhav DHC8311
- Aircraft serial: 279
- Aircraft time: 53,798 hours, 63,802 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: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2017112800380

## Discrepancy

TWO AFT MOST CEILING EMERGENCY LIGHTS ARE INOPERATIVE.  REMOVED THE POWER SUPPLY IN POSITION PS4 AND REPLACED WITH NEW.

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