# SDR CALA2025041003674

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2025
- Submitted: April 10, 2025
- Operation: Air carrier
- Aircraft: [N478UA](https://openairdocs.org/aircraft/N478UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1533
- Aircraft time: 66,830 hours, 29,088 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/CALA2025041003674

## Discrepancy

EPSU BATTERY FWD L MESSAGE ON EMERGENCY LIGHTS TEST REMOVED AND REPLACED ESPU BATTERY REF AMM 33-51-38. OKAY FOR SERVICE.PARTS USED:  18-3351-3-0001,QTY :1

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