# SDR F3LA2024051700067

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2024
- Submitted: May 17, 2024
- Operation: Air carrier
- Aircraft: [N723FR](https://openairdocs.org/aircraft/N723FR), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 08640
- Aircraft time: 15,510 hours, 6,861 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: AD321431
- 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/F3LA2024051700067

## Discrepancy

EPSU TEST FAILED, EPSU BATTERY 11WL FAULT. THIS FAILURE WAS DURING OVERNIGHT MAINTENANCE AND DID NOT CAUSE A FLIGHT DELAY.   REPLACED BATTERY EPSU 11WL. EPSU TEST PASS. AMM 33-51-3R-400-002-A./END/

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