Service difficulty report · Metering Valve · Cessna 750

Difficulty date
June 6, 2012
Submitted
June 8, 2012
Operation
Air carrier
Aircraft
N930QS
Make and model
Cessna 750
Aircraft serial
7500130
Aircraft time
10,299 hours, 6,306 cycles
Part
Metering Valve
Part number
99144682
Part serial
147A
Condition
Inoperative
Part time
10,299 hours, 6,306 cycles
Stage of operation
TX
How discovered
O
Nature of condition
S, J
Precautionary procedure
O

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

What was found

BRAKES REQUIRE FULL TRAVEL OF PEDALS TO STOP THE ACFT. THE BRAKES FELT SOFT & SPONGY. DID NOT GET A LOW BRAKE PRESSURE CAS WITH THE PARKING BRAKE SET. FOUND BRAKE METERING VALVE LEAKING SKYDROL FROM INPUT ACTUATOR CYLINDERS. R & R THE BRAKE METERING VALVE WITH AN O/H UNIT IAW MM 32-42-03. SERVICED "A" SYS HYDRAULICS TO FULL. OPS AND LEAK CHECKS GOOD. TAXI CHECKS GOOD.

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