# SDR UPS08552423

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 3, 2008
- Submitted: July 1, 2008
- Operation: Air carrier
- Aircraft: [N428UP](https://openairdocs.org/aircraft/N428UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25459
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Faulty
- Location: Cockpit
- Stage of operation: NR
- 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/UPS08552423

## Discrepancy

INSPECTION TYPE:N/A EMERGENCY EXIT LIGHT FLICKERS ON/OFF WHILE EN ROUTE.  REMOVED AND REPLACED EMERGENCY BATTERY PACK ASSY, CHECKS GOOD PER MM 33-51-00-5.

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