# SDR UPS05M44724

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 23, 2005
- Submitted: June 24, 2005
- Operation: Air carrier
- Aircraft: [N253UP](https://openairdocs.org/aircraft/N253UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48439
- 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/UPS05M44724

## Discrepancy

EMERGENCY POWER LIGHT TEST FAIL ILLUM ON PREFLIGHT.  ACCOMPLISHED OPERATIONAL TEST OF EMERGENCY POWER TEST FAIL ALERT.  CHECK OK REF MM 24-00-01-5.

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