# SDR AALA202607273327

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 21, 2026
- Submitted: July 27, 2026
- Operation: Air carrier
- Aircraft: [N954XV](https://openairdocs.org/aircraft/N954XV), registered now
- Make and model: Airbus A321-253N
- Registry model: [Airbus A321-253N](https://openairdocs.org/model/airbus-a321-253n) (OpenAirDocs)
- Aircraft serial: 7999
- Aircraft time: 25,791 hours, 7,429 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: No Test
- Location: Zone 800 Slide
- Part time: 1,089 hours, 432 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/AALA202607273327

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DURING EMERGENCY POWER SUPPLY UNIT SYSTEM TEST FAULT CODE (ESCAPE SLIDE LT/ EPSU (13WL) AFT L) DISPLAYED. MAINTENANCE REPLACED THE L4 DOOR SLIDE RAFT PER JOB CARD 26L00025011 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK WITH NO FAULTS NOTED.

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