# SDR UPS00434521

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 2, 2000
- Submitted: December 4, 2000
- Operation: Air carrier
- Aircraft: N520UP
- Make and model: Boeing 747-200B
- Registry model: [Boeing 747-200B](https://openairdocs.org/model/boeing-747-200b) (OpenAirDocs)
- Aircraft serial: 1
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Discharged
- Location: Cabin
- 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/UPS00434521

## Discrepancy

INSPECTION TYPE:N/A AFT EMERGENCY LIGHT AT CREW ENTRY DOOR L1 IS INOP EMERGENCY LIGHT BY  CREW STAIRS (AFT) INOP     R/R BATTERY ASSY ONLY, PER 33-50-00 OPS CHK OK

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