# SDR AALA202604071121

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2026
- Submitted: April 7, 2026
- Operation: Air carrier
- Aircraft: [N423AN](https://openairdocs.org/aircraft/N423AN), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 10329
- Aircraft time: 20,544 hours, 5,556 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- Condition: No Test
- Location: Zone 200
- Part time: 58 hours, 16 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/AALA202604071121

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING CIDS TEST MAINTENANCE FOUND FAULT EXTERIOR LT 1/EPSU (10WL) FWD L. MAINTENANCE DETERMINED THAT THE L1 DOOR SLIDE RAFT ASSEMBLY WAS CAUSING THE FAULT AND REPLACED IT PER JOB CARD 26L0025011. A SATISFACTORY OPERATIONAL CHECK OF THE EMERGENCY LIGHTING SYSTEM WAS ACCOMPLISHED WITH NO FAULTS NOTED.

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