# SDR CALA2017050101227

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 2017
- Submitted: May 1, 2017
- Operation: Air carrier
- Aircraft: [N838UA](https://openairdocs.org/aircraft/N838UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 1477
- Aircraft time: 51,993 hours, 22,130 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 8239
- 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/CALA2017050101227

## Discrepancy

DURING TEST OF EMERGENCY BATTERIES, THE EPSU BATTERY AFT LT FAILED TO TEST.  REPLACED EMERGENCY POWER SUPPLY. OPS CHECKED OK.

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