# SDR AALA201805229008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2018
- Submitted: May 22, 2018
- Operation: Air carrier
- Aircraft: [N551UW](https://openairdocs.org/aircraft/N551UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4940
- Aircraft time: 22,846 hours, 8,448 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- 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/AALA201805229008

## Discrepancy

MID RIGHT EMERGENCY POWER SUPPLY UNIT 14WL BATTERY FAULTED.  MAINTENANCE REPLACED THE BATTERY IAW AMM 33-51-38 AND PERFORMED SATISFACTORY OPERATIONAL CHECK.

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