# SDR IPXA11B66954

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2011
- Submitted: June 3, 2011
- Operation: Air carrier
- Aircraft: [N579UP](https://openairdocs.org/aircraft/N579UP), registered now
- Make and model: Boeing 747-45E
- Registry model: [Boeing 747-45E](https://openairdocs.org/model/boeing-747-45e) (OpenAirDocs)
- Aircraft serial: 26062
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 900835A
- Part serial: 50549
- Condition: Inoperative
- Location: Emergency Light
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA11B66954

## Discrepancy

UPPER DECK L/T DOOR LIGHT TEST FAILED.  REPLACED EMERGENCY LIGHT POWER SUPPLY IAW AMM 33-51-04, OPS TEST OK.

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