# SDR AALA201710029003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2017
- Submitted: October 2, 2017
- Operation: Air carrier
- Aircraft: [N107NN](https://openairdocs.org/aircraft/N107NN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5938
- Aircraft time: 13,597 hours, 2,792 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 321431
- Part serial: 785079
- 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/AALA201710029003

## Discrepancy

EMERGENCY POWER SUPPLY UNIT FAILED BITE TEST. REPLACED THE BATTERY IAW AMM 33-51-38. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.

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