# SDR UIEA2020081341547

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2020
- Submitted: August 13, 2020
- Operation: Air carrier
- Aircraft: [N322SG](https://openairdocs.org/aircraft/N322SG), registered now
- Make and model: Boeing 747481
- Aircraft serial: 30322
- Aircraft time: 46,171 hours, 6,116 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 20131A
- Part serial: 496759
- Condition: Inoperative
- Location: Emergency Lights
- 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/UIEA2020081341547

## Discrepancy

EMERGENCY LIGHT POWER SUPPLY M7925 BATTERY READS 0V.(<P ><SPAN>REMOVED AND REPLACED POWER / SULLY M7925 BATTERY PER B747 AMM 33-51-04-902-001-001. OPS CHECK GOOD PER B747 / AMM 33-51-04-712-006-001</SPAN></P>)

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