# SDR UIEA2022062900679

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2022
- Submitted: July 5, 2022
- Operation: Air carrier
- Aircraft: [N480MC](https://openairdocs.org/aircraft/N480MC), registered now
- Make and model: Boeing 747422
- Aircraft serial: 28812
- Aircraft time: 78,226 hours, 9,046 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: BPS73
- Part serial: 46013
- Condition: Inoperative
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2022062900679

## Discrepancy

M5934 EMER LIGHT BATTERY PACK CAPACITY CHECK FAIL(M5934 POWER SUPPLY ASSY REPLACED IAW AMM 33-51-04)

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