# SDR DXTA2026100810063

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2026
- Submitted: October 8, 2026
- Operation: Air carrier
- Aircraft: [N442QS](https://openairdocs.org/aircraft/N442QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500565
- Aircraft time: 5,671 hours, 4,458 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Brake Assy
- Part number: DAP0009704
- Part serial: 5092QK
- Condition: Worn
- Location: Zone 700
- Stage of operation: TX
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026100810063

## Discrepancy

DURING TAXI WHEN APPLYING BRAKES STUTTERING & GRINDING COULD BE FELT. AS SPEED DECREASED STUTTERING BECAME MORE PRONOUNCED. TAXIED BACK TO RAMP STUTTERING & GRINDING CONTINUED. PARKED & SPEED DECREASED STUTTERING BECAME MORE PRONOUNCED. THIS COULD BE FELT IN BOTH LT & RT BRAKES.  CHKD HYD LEVEL & FOUND CORRECT LEVEL IAW AMM 12-13-00-810-802-A.  PERFORMED A VISUAL INSPECTION OF LT & RT BRAKE SYS IAW AMM 32-45-21-210-801-A. FOUND LT BRAKE WEAR PIN AT 1/32ND.  AIR WAS PRESENT WHEN BLEEDERS OPENED ON BRAKES. REPLACED WITH OVERHAULED LT BRAKE & BLED BOTH BRAKES AGAIN. PERFORMED A TAXI CHK & NO STUTTERING OR GRINDING WAS HEARD WHEN THE BRAKES WERE APPLIED. WORK IAW AMM 32-45-21. OPS & LEAK CHKD GOOD.

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