# SDR AALA202603134417

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2026
- Submitted: March 13, 2026
- Operation: Air carrier
- Aircraft: [N557UW](https://openairdocs.org/aircraft/N557UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5269
- Aircraft time: 42,760 hours, 17,617 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Damper Plate
- Condition: Low Pressure
- Location: Zone 800
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202603134417

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DOOR 4L SHOWING DISARMED ON FLIGHT ATTENDANTS PANEL BUT ARMED ON ECAM. MAINTENANCE FOUND THE 4L DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PRESSURE LOW AND SERVICED IT PER AMM 52-10-00 WHICH CLEARED THE FAULT MESSAGE ON THE FLIGHT ATTENDANTS PANEL.

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