Service difficulty report · Control Valve · Bombdr BD7001A10

Difficulty date
October 27, 2024
Submitted
October 31, 2024
Operation
Air carrier
Aircraft
N143QS
Make and model
Bombdr BD7001A10
Aircraft serial
9499
Aircraft time
11,783 hours, 4,206 cycles
Part
Control Valve
Part number
GW41561501
Part serial
4241
Condition
Failed
Location
Brake Sys
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
O

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 ILLUMINATED DURING LANDING ROLLOUT AND AGAIN DURING TAXI. REPLACED FAULTY LH INBD BRAKE CONTROL VALVE, RH INBD BRAKE CONTROL VALVE IAW AMM 32-44-00. PERFORMED BLEEDING OF THE BRAKES IAW AMM 29-10-00. PERFORMED BLEEDING OF THE #3 HYD SYS IAW AMM 29-10-00. PERFORMED BLEEDING OF THE #2 HYDRAULIC SYSTEM IAW AMM 29-10-00. SERVICED #2 HYD SYS IAW AMM 12-12-00, SERVICED #3 HYD SYS IAW AMM 12-12-00. LEAK CHECKS GOOD. PERFORMED AN OPS TEST OF THE PARKING BRAKE SYSTEM IAW AMM 32-44-00. PERFORMED OPS TEST OF THE BRAKE SYS IAW AMM 32-43-00. PERFORMED OP TEST OF THE AUTO BRAKE ARMING SWITCH IAW AMM 32-43-00. ALL LEAK & OPS CHECKS ARE GOOD.