# SDR CALA2020102901220

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2020
- Submitted: October 29, 2020
- Operation: Air carrier
- Aircraft: [N456UA](https://openairdocs.org/aircraft/N456UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1128
- Aircraft time: 67,269 hours, 26,569 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: AO321431
- Condition: No Test
- Location: Emergency Lights
- 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/CALA2020102901220

## Discrepancy

EPSU BATTERY 12WL AND 13WL BATTERY FAILS CAPACITY CHECK.  REMOVED AND REPLACED 12WL & 13WL ESPU BATTERIES, IAW A320 AMM 33- 51-38-000-002-A AND 33-51-38-400-002-A.  OPERATIONS CHECK GOOD, IAW A320 AMM 33-51-00-710-001-A.

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