# SDR UPS04M42027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2004
- Submitted: March 15, 2004
- Operation: Air carrier
- Aircraft: [N251UP](https://openairdocs.org/aircraft/N251UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- Condition: Will Not Test
- Location: Cockpit
- 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/UPS04M42027

## Discrepancy

FLIGHT DECK EMERGENCY LIGHTS DID NOT ILLUMINATE WHEN CONDUCTING TC 403 STEP 10 PARA G STEP 3.  OPERATIONAL CHECK OF FLT DECK EMERGENCY LIGHTS NORMAL IAW MM 33-50-00. PER NRC 735354

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