# SDR CALA2021111102090

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 11, 2021
- Submitted: November 12, 2021
- Operation: Air carrier
- Aircraft: [N494UA](https://openairdocs.org/aircraft/N494UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1840
- Aircraft time: 58,762 hours, 25,616 cycles
- System (JASC): [2400 · Electrical Power System](https://openairdocs.org/jasc/2400)
- Part: Battery
- Part number: AD321431
- Condition: Discharged
- Location: 10wl Battery
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021111102090

## Discrepancy

EMERGENCY LIGHTING SYSTEM TEST FAILED DUE TO EPSU 10WL BATTERY IS DISCHARED, LTPR NR#5001115663-0010.

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