# SDR CALA2025081407739

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2025
- Submitted: August 14, 2025
- Operation: Air carrier
- Aircraft: [N30913](https://openairdocs.org/aircraft/N30913), registered now
- Make and model: Boeing 787-8
- Registry model: [Boeing 787-8](https://openairdocs.org/model/boeing-787-8) (OpenAirDocs)
- Aircraft serial: 35879
- Aircraft time: 43,224 hours, 5,224 cycles
- System (JASC): [2432 · Battery/Charger System](https://openairdocs.org/jasc/2432)
- Part: Battery
- Part number: BA5302
- Part serial: 1651
- Condition: Failed
- Location: Zone 100
- Part time: 44,005 hours, 4,379 cycles
- 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/CALA2025081407739

## Discrepancy

DURING PREPERATION FOR APU RELAY REMOVAL FOUND BURNED SIGNES ON M2709004 BATTERY 10 MIN-R CASING.  REMOVED R FCE BATTERY REMOVED ACC AMM 27-02-09-00A-520A. RH FCU 10 MIN BATTERY REPLACED AS PER AMM DMC-B787-A-27-09-00A-720A-A. OLD FCU BATTERY WAS SCRAPPED LOCALLY DUE TO RUNAWAY.

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