# SDR AALA202412026416

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2024
- Submitted: December 2, 2024
- Operation: Air carrier
- Aircraft: [N904AA](https://openairdocs.org/aircraft/N904AA), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7613
- Aircraft time: 23,192 hours, 9,139 cycles
- System (JASC): [2565 · Escape Slide](https://openairdocs.org/jasc/2565)
- Part: Power Supply
- Part number: 32146210
- Part serial: 147541
- Condition: No Test
- Location: Door Slide
- Part time: 26,525 hours, 10,655 cycles
- 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/AALA202412026416

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DURING REPLACEMENT OF AFT LEFT SLIDE, ACCOMPLISHED EPSU TEST AND FOUND FAULT BAT/EPSU (13WL) AFT L. REMOVED AND REPLACED EPSU.

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