# SDR CALA2017010900056

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 9, 2017
- Submitted: January 10, 2017
- Operation: Air carrier
- Aircraft: [N490UA](https://openairdocs.org/aircraft/N490UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1728
- Aircraft time: 48,388 hours, 20,766 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: Discharged
- Location: Cabin
- Stage of operation: TX
- 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/CALA2017010900056

## Discrepancy

EMER LIGHTS IN CABIN FLICKERING ON/OFF DURING TAXI OUT. CEASED PRIOR TO TAKEOFF FOUND CIDS MESSAGE EPSU UNIT FWD L. REPLACED EPSU BATTERY PER AM M 33-51-38. OPS CHECK OK AND MESSAGE CLEARED.

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