# SDR UIEA2020021700261

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 16, 2020
- Submitted: February 17, 2020
- Operation: Air carrier
- Aircraft: [N780BA](https://openairdocs.org/aircraft/N780BA), registered now
- Make and model: Boeing 747409
- Aircraft serial: 24310
- Aircraft time: 86,976 hours, 16,436 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 20131A
- Part serial: 108879
- Condition: Inoperative
- Location: Emergency Lights
- 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/UIEA2020021700261

## Discrepancy

FOUND EMERGENCY BATTERY PACK (M14533) INOP.(<P>IAW AMM 33-51-04-902-001-001 REV. 97, REPLACED EMERGENCY BATTERY PACK AT M14533 AND CONDITION CHECK NORMAL. IAW AMM 33-51-04-902-001-001 REV. 97, PERFORMED POWER SUPPLY TEST AND THE RESULT WAS SATISFACTORY.</P>)

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