# SDR UPS96405968

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N688UP](https://openairdocs.org/aircraft/N688UP), registered now
- Make and model: Boeing 747-SR-46
- Registry model: [Boeing 747-SR-46](https://openairdocs.org/model/boeing-747-sr-46) (OpenAirDocs)
- Aircraft serial: 20784
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 900835A
- Condition: Discharged
- Location: Upper Deck
- Stage of operation: IN
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS96405968

## Discrepancy

MAINTENANCE REPORTED, EMERGENCY EXIT SIGN INOP.  REMOVED AND REPLACED UPPER DECK EMERGENCY EXIT SIGN BATTERY PACK, OK FOR SERVICE.

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