# SDR CALA2025080607387

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2025
- Submitted: August 6, 2025
- Operation: Air carrier
- Aircraft: [N433UA](https://openairdocs.org/aircraft/N433UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 589
- Aircraft time: 87,732 hours, 35,044 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: AD321431
- Condition: No Test
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025080607387

## Discrepancy

EMERGENCY EPSU BATTERY FAILED CAPACITY CHECK.   REMOVED AND REPLACED RT EMERGENCY EPSU BATTERY IAW AMM 33-51-38-000-002-A. OPS CHECKED GOOD

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.