Service difficulty report · Brake Sys · Cessna 750

Difficulty date
June 21, 2011
Submitted
June 22, 2011
Operation
Air carrier
Aircraft
N947QS
Make and model
Cessna 750
Aircraft serial
7500047
Aircraft time
10,379 hours, 6,451 cycles
Part
Brake Sys
Condition
Malfunctioned
Location
Rt Mlg
Stage of operation
LD
How discovered
O
Nature of condition
E
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ON LANDING ROLL OUT RT BRAKE IS GRABBING FOLLOWED BY A LOUD LONG "SQUEAK" AND VIBRATION. ON POST FLIGHT INSPECTION, THE BRAKE IS VERY HOT AND SMOKING. INSPECTED AND VERIFIED METERING VALVE WAS HITTING STOPS. CHECKED BRAKE HYD PRESSURES ON THE LT AND RT BRAKES. BOTH SYS HAD 50 PSI WITH BRAKES DEPRESSED, AND NO RESIDULE PRESSURE. JACKED THE ACFT AND REMOVED THE RT WHEELS. INSPECTED RT BRAKE ASSEMBLIES AND SAW NO OBVIOUS DEFECTS. REPLACED BRAKES

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