# SDR DALA2026051102941

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2026
- Submitted: May 11, 2026
- Operation: Air carrier
- Aircraft: [N854NW](https://openairdocs.org/aircraft/N854NW), registered now
- Make and model: Airbus A330-223
- Registry model: [Airbus A330-223](https://openairdocs.org/model/airbus-a330-223) (OpenAirDocs)
- Aircraft serial: 0620
- Aircraft time: 89,749 hours, 11,660 cycles
- System (JASC): [2611 · Smoke Detection](https://openairdocs.org/jasc/2611)
- Part: Control Unit
- Part number: RAI2811M0106
- Part serial: Q09450005641
- Condition: Faulted
- Location: Zone 100
- Part time: 80,405 hours, 10,648 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026051102941

## Discrepancy

ATB - DUE TO LOW AIR FLOW ECAM MSG.   REPLACED SDCU AND VENTILATION CONTROLLER. OK FOR SERVICE. (8181062) AIRCRAFT WAS GROUNDED.

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