# SDR DXTA2026091409664

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2026
- Submitted: September 15, 2026
- Operation: Air carrier
- Aircraft: [N431QS](https://openairdocs.org/aircraft/N431QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500507
- Aircraft time: 6,677 hours, 5,247 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Brake
- Condition: Abnormal
- Location: Zone 700
- 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/DXTA2026091409664

## Discrepancy

RIGHT MLG BRAKE: RIGHT BRAKE PULSATES NOTICEABLY AT ALL SPEEDS (MOST NOTICEABLE AT TAXI SPEED) WHEN BRAKE PEDAL PRESSURE APPLIED. DURING TAXI BRAKE APPLICATION, THE BRAKES CONSTANTLY GRABBED AND RELEASED. THIS PROCEEDED TO GET WORSE AS AIRCRAFT SLOW SPEED CAUSED THE BRAKES TO SHAKE THE AIRCRAFT. PERFORMED VISUAL INSPECTION OF THE RT BRAKE ASSY. NO DEFECTS NOTED. PERFORMED INSPECTION OF HYDRAULIC RESERVOIR LEVEL. NO FAULTS NOTED. PERFORMED NORMAL AND EMER/ PARKING BLEEDING PROCEDURE OF THE LT & RT BRAKES. SERVICED HYD RESERVOIR WITH 2 QTS. COMPLETED A LOW SPEED TAXI WITH ATTENTION TO THE RT BRAKE. NO PULSATING/ GRABBING NOTED DURING TAXI. LEAK AND OPS CHECKS GOOD AT THIS TIME. REF. AMM 32-40-00, 32-41-00, AND 12

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