# SDR CALA2023052601647

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 25, 2023
- Submitted: May 26, 2023
- Operation: Air carrier
- Aircraft: [N495UA](https://openairdocs.org/aircraft/N495UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1842
- Aircraft time: 60,663 hours, 26,554 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: AD321431
- Part serial: 231779
- Condition: No Test
- Location: 11wl
- 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/CALA2023052601647

## Discrepancy

PER PRODUCTION REQUEST, ESPU BATTERY "L" FAILED OPS TEST. REMOVED AND REPLACED IIWL EPSU BATTERY PER A320 AMM 33-51-39-000 -007-C2 / 33-51-39-400-007-C2. PERFORMED OP CHECKS PER A320 AMM 33-51-00-710-001-A / 3351-00-710-002-62. SYSTEM CHECKS GOOD.

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