# SDR AALA202602020547

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 29, 2026
- Submitted: February 2, 2026
- Operation: Air carrier
- Aircraft: [N411AN](https://openairdocs.org/aircraft/N411AN), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 9318
- Aircraft time: 19,453 hours, 5,390 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Proximity Sensor
- Part number: DHE1141
- Condition: Out Of Adjust
- Location: Zone 800
- Stage of operation: CL
- 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/AALA202602020547

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING CLIMB FLIGHT ATTENDANT REPORTING DOOR 4R PRESSURIZATION INDICATOR FLASHING RED AND INDICATIONS ON THE ECAM DOOR PAGE ARE ALTERNATING BETWEEN ARMED (SLIDE IN WHITE) AND DISARMED. MAINTENANCE FOUND THE 4R DOOR SLIDE RAFT WAS KEEPING THE ARM HANDLE FROM GOING DOWN FULLY AND THAT PROXIMITY SWITCH 7WN2 WAS OUT OF ADJUSTMENT. MAINTENANCE REPLACED THE SLIDE RAFT ASSEMBLY PER TASK CARD 26L00025011 (AALA202601316652) AND ADJUSTED PROXIMITY SWITCH 7WN2 PER AMM 52-71-00 (AALA202602020547). A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO FAULTS NOTED.

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