# SDR DXTA2014090805875

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2014
- Submitted: September 8, 2014
- Operation: Air carrier
- Aircraft: [N743QS](https://openairdocs.org/aircraft/N743QS), registered now
- Make and model: Gulstm 200
- Aircraft serial: 216
- Aircraft time: 4,479 hours, 2,837 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Brake Sys
- Condition: Contaminated
- Location: Mlg
- 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/DXTA2014090805875

## Discrepancy

DURING ACFT MOVEMENT WITH BRAKES INITIALLY APPLIED A GROANING SOUND CAN BE HEARD UNDER COCKPIT FLOOR.  WITH PARK BRAKE SET A THUMPING SOUND CAN BE HEARD BELOW PEDESTAL.  EXCESSIVE BRAKE PRESS SEEMS TO BE REQUIRED TO RECEIVE NORMAL BRAKING ACTION AT TAXI SPEED.  PERFORMED NORMAL BRAKE SYS BLEED IAW AMM 32-40-20.  PERFORMED HYD SYS SERVICING IAW AMM 12-15-00.

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