# SDR DXTA2021050541640

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2021
- Submitted: May 10, 2021
- Operation: Air carrier
- Aircraft: [N427QS](https://openairdocs.org/aircraft/N427QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500484
- Aircraft time: 1,950 hours, 1,510 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Transducer
- Part number: DAP0010301
- Part serial: 103SH
- Condition: Defective
- Location: Rt Mlg
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2021050541640

## Discrepancy

RIGHT MLG BRAKE: DURING TAXI OUT, THE RIGHT, MAIN BRAKE INTERMITTENTLY FAILED. APPLYING THE BRAKES RESULTED IN A GRINDING SOUND AND IT FAILED TO ENGAGE FULLY. THE AIRCRAFT HAD TO BE STOPPED WITH THE LEFT BRAKE ONLY. //SIGN OFF // VERIFIED SEVERAL WHEEL SPEED TRANSDUCES FAILS ( RH SIDE) IN CMC HISTORY. REPLACED WITH A REPAIRED UNIT THE RH WHEEL SPEED TRANSDUCER OPERATIONAL TEST CHECKED GOOD IAW PHENON AMM 32-41-06 PERFORMKED SATISFACTORY OPERATIONAL TEST OF BRAKING SYSTEM VIA ENGINE RUN & TAXI IAW PHENON AFM NO DEFECTS NOTED

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