Service difficulty report · Control Box · Bombdr DHC8402

Difficulty date
February 10, 2011
Submitted
February 14, 2011
Operation
Air carrier
Aircraft
N421QX
Make and model
Bombdr DHC8402
Aircraft serial
4149
Aircraft time
9,986 hours, 10,728 cycles
Part
Control Box
Part number
6007045
Part serial
0182
Condition
Malfunctioned
Location
Brakes
Part time
9,968 hours, 10,722 cycles
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

BRAKE APPLICATION SEEM NORMAL EARLY IN LANDING ROLL (HIGHER SPEEDS) BUT AS THE ACFT SLOWS TO MAKE A TURN OFF AND BRAKE APPLICATION IS A BIT HARDER, ANTI SKID SEEMS TO CYCLE, GRABBING THE BRAKES THEN RELEASING, THEN SEVERAL CYCLES MAKING TURN OFF'S DIFFICULT. PLACED THE ANTI-SKID SYS ON MEL 32-40-2. CLEARED 2/11 BY: C/W GVI OF MLG HUB CAPS & WHEEL SPEED GEN'S WITH NO DEFECTS NOTED. C/W GVI OF BRAKES WITH NO DEFECTS NOTED REPLACED ANTI-SKID CONTROL BOX IAW 32-46-01 FOR PRECAUTIONARY MEASURES. CHECKS GOOD. RETURNED TO SERVICE.