# SDR CALA2017100203419

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2017
- Submitted: October 3, 2017
- Operation: Air carrier
- Aircraft: [N472UA](https://openairdocs.org/aircraft/N472UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1435
- Aircraft time: 53,783 hours, 21,909 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 4264
- Condition: Inoperative
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2017100203419

## Discrepancy

EMERGENCY LIGHT HAD A FAILURE MESSAGE OF THE ESPU BATTERY.  REPLACED ESPU IAW AMM 33-51-38-000-001, 33-51-38-400-001. REPLAC ED BATTERY IAW AMM 33-51-38-000-002, 33-51-38-400-002. OPS CHECKED OK.

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