# SDR DXTA2025060903780

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 4, 2025
- Submitted: June 9, 2025
- Operation: Air carrier
- Aircraft: [N426QS](https://openairdocs.org/aircraft/N426QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500483
- Aircraft time: 6,188 hours, 4,757 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Control Unit
- Part number: DAP0010102
- Part serial: 049WG
- Condition: Defective
- Location: Zone 700
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2025060903780

## Discrepancy

BRK FAIL YELLOW CAS: YELLOW BRAKE FAIL CAS MESSAGE APPEARED AFTER ENTERING A RUNWAY FOR TAKEOFF. BRAKES STARTING GRABBING THEN FAILED. I SLOWLY TAXIED OFF OF THE RUNWAY TO THE CLOSE BY TAXIWAY AND USED THE EMERGENCY BRAKE TO STOP CORRECTIVE ACTION: REMOVED AND REPLACED BRAKE CONTROL MODULE IAW PHENOM 300 AMM 32-40-07. OPS CHECK GOOD NO CAS MESSAGE NOTED

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