# SDR CALA2017090903112

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2017
- Submitted: September 10, 2017
- Operation: Air carrier
- Aircraft: [N439UA](https://openairdocs.org/aircraft/N439UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 683
- Aircraft time: 67,145 hours, 26,492 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: Discharged
- Location: Cabin
- 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/CALA2017090903112

## Discrepancy

EMERGENCY LIGHT TEST FAILED AT PTP PANEL. REPLACED BATTERY AT EPSU 11WL NOW OP TEST OK FOR SERVICE REF AMM 33-51-38 PB401.

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