# SDR UPS07M50175

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 16, 2007
- Submitted: July 18, 2007
- Operation: Air carrier
- Aircraft: [N250UP](https://openairdocs.org/aircraft/N250UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48745
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/UPS07M50175

## Discrepancy

ON PRE-DEPARTURE CHECK EMERGENCY LIGHT TEST SHOWS EMERGENCY LIGHT BATTERY 1 LOW.  PER FIM 33-51-00-1.  REMOVED AND REPLACED EMERGENCY LIGHTING BATTERY POWER SUPPLY PER MM 33-51-01-4.  OPS CHECK GOOD.

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