# SDR M02022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 9, 2002
- Submitted: November 15, 2002
- Operation: Air carrier
- Aircraft: [N449YV](https://openairdocs.org/aircraft/N449YV), registered now
- Make and model: Dhav DHC8202
- Aircraft serial: 449
- Engine: Pwa PW123
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 6038443
- Condition: Inoperative
- Location: Emergency Light
- 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/M02022

## Discrepancy

DURING ROUTINE MAINTENANCE, SEVERAL EMERGENCY EXIT LIGHTS FAILED TO ILLUMINATE.  MECHANIC REPLACED THE NR2 EMERGENCY POWER SUPPLY.  OPS CHECK GOOD.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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