# SDR UIEA2023052300520

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2023
- Submitted: May 23, 2023
- 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: 53,670 hours, 12,690 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: BPS73
- Part serial: 54642
- Condition: Unknown
- Location: Unknown
- Stage of operation: IN
- How discovered: V
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2023052300520

## Discrepancy

FOUND THE EMERGENCY LIGHT INOP. EQUIPT M14529, L6510, L1845, L1846, M3430, L6504, L6512, L6502 & X317(<P>1) IAW AMM 33-31-04-902-001-001 REV 107 REPLACED BATTERY PACK OF EMERGENCY LIGHT (M14533) AND CONDITION CHECK NORMAL. 2) IAW AMM 33-31-06-000-801 & AMM 33-51-06-400-801 REV.107 REPLACED BATTERY (X317) AND CONDITION CHECK NORMAL. 3) IAW AMM 33-51-04-902-001-001 REV 107 PERFORMED OPERATIONAL TEST AND THE RESULT WAS SATISFACTORY</P>)

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