# SDR AALA202001229014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2020
- Submitted: January 22, 2020
- Operation: Air carrier
- Aircraft: [N132AN](https://openairdocs.org/aircraft/N132AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6473
- Aircraft time: 18,399 hours, 4,917 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: AD321431
- Part serial: 797735
- Condition: Faulty
- Location: Emergency Lights
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202001229014

## Discrepancy

AIRCRAFT NOT GROUNDED: EPSU SYS TEST FAIL (ATA 33-51-00) FWD L. REMOVED AND REPLACED BATTERY OF THE EPSU AT 10 WL. TEST OK. IAW AMM 33-51-38.

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