What was found
DURING TAXI, CREW REPORTED BRAKES SPONGY AND PEDALS SLOWLY LOSING PRESSURE. MX FOUND THE RT BRAKE MIXING VALVE AND PILOT RT BRAKE MASTER CYLINDER FAILED. BOTH COMPONENTS WERE REPLACED.
- Difficulty date
- April 29, 2011
- Submitted
- May 2, 2011
- Operation
- Air carrier
- Aircraft
- N454LX
- Make and model
- Beech 400A
- Aircraft serial
- RK327
- Aircraft time
- 7,303 hours, 6,138 cycles
- System (JASC)
- 3243 · Master Cylinder/Brake Valve
- Part
- Master Cylinder
- Part number
- 45AS38401012
- Part serial
- 975
- Condition
- Failed
- Location
- Mlg Brakes
- Part time
- 101 hours, 75 cycles
- Stage of operation
- TX
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.