# SDR U2RA2021043022217

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 30, 2021
- Submitted: April 30, 2021
- Operation: Air carrier
- Aircraft: [N729CA](https://openairdocs.org/aircraft/N729CA), registered now
- Make and model: Boeing 747412
- Aircraft serial: 25068
- Aircraft time: 85,561 hours, 14,851 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 20131A
- Part serial: 106120
- 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/U2RA2021043022217

## Discrepancy

UPPER DECK STAIRS EMERGENCY LIGHT BATTERY PACK WILL NOT CHARGE - REPLACED BATTERY PACK PER AIRCRAFT MAINTENANCE MANUAL 33-51-04.

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