# SDR UIEA2025051200601

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2025
- Submitted: May 12, 2025
- Operation: Air carrier
- Aircraft: [N747BC](https://openairdocs.org/aircraft/N747BC), registered now
- Make and model: Boeing 747-4J6
- Registry model: [Boeing 747-4J6](https://openairdocs.org/model/boeing-747-4j6) (OpenAirDocs)
- Aircraft serial: 25879
- Aircraft time: 55,103 hours, 12,923 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Zone 200
- 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/UIEA2025051200601

## Discrepancy

FOUND EMER LIGHT POWER PACK INOP, M14533, M14532, X317.(<P>1. REPLACED M14333, M14532, X317 BATTERIES AND LIGHT ASSY IAW AMM 33-51-04-902-001-001 & AMM 33-51-06-004-046. 2. PERFORMED LIGHT TEST AND THE RESULT WAS SATISFACTORY.</P>)

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