# SDR UPS07851227

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2007
- Submitted: November 30, 2007
- Operation: Air carrier
- Aircraft: N840UP
- Make and model: Doug DC-8-73F
- Registry model: [Doug DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f) (OpenAirDocs)
- Aircraft serial: 46140
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS07851227

## Discrepancy

AT CRUISE, THE DOME LIGHT AND PEANUT LIGHTS CAME ON BY THEMSELVES NO SWITCHES WERE THROWN, NO ABNORMAL INDICATIONS OF F/E PANEL WHEN WENT TO DC TIE WITH THE FREQ SELECTOR, THE LIGHTS WENT OUT.  REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK IAW MM 33-50-01-2.  OPS CHECK GOOD.

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