# SDR AALA201806189031

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2018
- Submitted: June 18, 2018
- Operation: Air carrier
- Aircraft: [N906AA](https://openairdocs.org/aircraft/N906AA), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7651
- Aircraft time: 3,049 hours, 1,155 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: UNI1247
- Part serial: 155161
- Condition: No Test
- Location: Emergency Light
- 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/AALA201806189031

## Discrepancy

DURING EMERGENCY POWER SUPPLY UNIT TEST,  A FAULT MESSAGE FOR THE EPSU 11WL EXT L.  REPLACED THE POWER SUPPLY IAW AMM 33-51-38.  OPS CHECKED GOOD.  OK FOR SERVICE.

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