# SDR DALA2024092109279

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 20, 2024
- Submitted: September 22, 2024
- Operation: Air carrier
- Aircraft: [N521DN](https://openairdocs.org/aircraft/N521DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0661
- Aircraft time: 1,622 hours, 129 cycles
- System (JASC): [5100 · Standard Practices/Structures](https://openairdocs.org/jasc/5100)
- Part: Switch
- Condition: Malfunctioned
- Location: Afdx
- 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/DALA2024092109279

## Discrepancy

SHIP 3521 -ATB- DUE TO LOSS OF AFDX SWITCH CAUSING FIVE PAGES OF DISPATCH MESSAGES. CORRECTIVE ACTION: RESET AFDX SWITCH AND CLEARED FAULTS. REPLACED AFDX SWITCH AS PRECAUTION. (LP 5261684)

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