Service difficulty report · Control Valve · Rkwell 700

Difficulty date
December 23, 2022
Submitted
December 27, 2022
Operation
Air carrier
Aircraft
N812QS
Make and model
Rkwell 700
Aircraft serial
7000048
Aircraft time
1,970 hours, 1,145 cycles
Part
Control Valve
Part number
39987
Part serial
0023
Condition
Defective
Location
Brakes
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

BRAKE 50% DEGRADED AMBER CAS MESSAGE CAME ON AFTER PARKING BRAKE RELEASED. NO PRESSURE IN THE INBOARD BRAKES WHEN BRAKES APPLIED. FULL PRESSURE, 3000 PSI WHEN USING THE PARKING BRAKE. BOTH OUTBOARD BRAKES WORKING CORRECTLY. REMOVED FAILED INBOARD BRAKE CONTROL VALVE & INSTALLED REPAIRED BRAKE CONTROL VALVE. OPERATIONAL CHECKS GOOD. REF CE-700 MM 32-41-35