# SDR AALA201811269024

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 24, 2018
- Submitted: November 26, 2018
- Operation: Air carrier
- Aircraft: [N197UW](https://openairdocs.org/aircraft/N197UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 3928
- Aircraft time: 32,011 hours, 12,370 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/AALA201811269024

## Discrepancy

CID TEST FAILED FOR THE EMERGENCY POWER SUPPLY UNIT.  THE AIRCRAFT WAS GROUNDED.   MAINTENANCE REPLACED THE POWER SUPPLY 12WL IAW AMM 33-51-38-000, AND PERFORMED SATISFACTORY OPERATIONAL CHECK.

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