# SDR CALA2025102410479

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2025
- Submitted: October 24, 2025
- Operation: Air carrier
- Aircraft: [N438UA](https://openairdocs.org/aircraft/N438UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 678
- Aircraft time: 81,965 hours, 34,386 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Failed
- Location: Zone 200
- 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/CALA2025102410479

## Discrepancy

CABIN EMERGENCY LIGHTING CARD 18-3351-1-0003 IS FAILING FOR EPSU BATTERY EMERGENCY LIGHT. IAW MM 33-51-38, REMOVED AND REPLACED BATTERY OF 11WL & 13WL EPSU'S OPS CK'D GOOD.

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