# SDR KCSA202301261735

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 17, 2022
- Submitted: January 26, 2023
- Operation: Air carrier
- Aircraft: [N708CK](https://openairdocs.org/aircraft/N708CK), registered now
- Make and model: Boeing 747-4B5
- Registry model: [Boeing 747-4B5](https://openairdocs.org/model/boeing-747-4b5) (OpenAirDocs)
- Aircraft serial: 25275
- System (JASC): [2560 · Emergency Equipment](https://openairdocs.org/jasc/2560)
- Part: Battery Pack
- Part number: 900835A
- Part serial: 107063
- Condition: Inoperative
- Location: Epas
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCSA202301261735

## Discrepancy

LEFT HAND UPPER DECK BATTERY PACK INOP. REMOVED AND REPLACED LEFT HAND UPPER DECK BATTERY PACK AND OPERATIONS CHECK GOOD IN ACCORDANCE WITH B747-400 AMM 52-23-14. LEFT HAND UPPER DECK BATTERY POWER SUPPLY WON'T CHARGE. REMOVED AND REPLACED LEFT HAND UPPER DECK BATTERY POWER SUPPLY IN ACCORDANCE WITH B747-400SF SRM 51-40-02, OPERATIONS CHECK GOOD IN ACCORDANCE WITH B747-400 AMM 52-23-14.

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