# SDR AALA202510166299

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 12, 2025
- Submitted: October 16, 2025
- Operation: Air carrier
- Aircraft: [N567UW](https://openairdocs.org/aircraft/N567UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5728
- Aircraft time: 37,721 hours, 15,473 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Deu
- Part number: Z043H000351A
- Condition: Faulted
- Location: Zone 100
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202510166299

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: ON DECENT, CHECK SLIDE PRESSURE CAUTION MESSAGE REAPPEARED ON FLIGHT ATTENDANT PANEL. FLIGHT ATTENDANT REPORTED SLIDE PRESSURE DECREASED FROM WHAT IT WAS FILLED TO PRIOR TO DEPARTURE. MAINTENANCE REPLACED DECODER ENCODER UNIT B (DEU) PER AMM 23-73-47. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.

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