# SDR AALA202504113780

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2025
- Submitted: April 11, 2025
- Operation: Air carrier
- Aircraft: [N558UW](https://openairdocs.org/aircraft/N558UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5282
- Aircraft time: 38,331 hours, 15,948 cycles
- System (JASC): [3397 · Light System Wiring](https://openairdocs.org/jasc/3397)
- Part: Wire
- Condition: Damaged
- Location: Zone 800 Slide
- Component: Slide, Aircruisers
- Component part number: D30665513
- 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/AALA202504113780

## Discrepancy

AIRCRAFT WAS GROUNDED: FAULT MESSAGE DISPLAYED FOR EMERGENCY POWER SUPPLY UNIT 13WL DURING SYSTEM TEST.  MAINTENANCE FOUND A DAMAGED WIRE ON THE R4 DOOR ESCAPE SLIDE AND REPLACED THE SLIDE ASSEMBLY PER TASK CARD 26L00025010.

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