# SDR AALA202002039020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 2, 2020
- Submitted: February 3, 2020
- Operation: Air carrier
- Aircraft: [N189UW](https://openairdocs.org/aircraft/N189UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1425
- Aircraft time: 63,627 hours, 23,868 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- 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/AALA202002039020

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DURING OPERATIONS CHECK, BITE OF EMERGENCY POWER SUPPLY UNIT, EMERGENCY EXIT RIGHT FAULT DISPLAYED. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT PER MM 33-51-38.

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