Service difficulty report · Park Brake Valve · Boeing 747123F

Difficulty date
October 6, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N859FT
Make and model
Boeing 747123F
Aircraft serial
20326
Part
Park Brake Valve
Part number
65B801794
Condition
Sticking
Location
Rt Mlg
Stage of operation
TO
Nature of condition
N
Precautionary procedure
C, D

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

What was found

ANTI-SKID LIGHT ON AT START OF TAKEOFF ROLL, LIGHT REMAINED ON STEADY. PARKING BRAKE VALVE OPERATION CHECKED AT MODULE, RIGHT BODY GEAR BAY OPERATIONAL CHECK SATISFACTORY. ELECTRICAL PLUG REMOVED AND CLEANED, 10 CYCLES OF PARKING BRAKE CARRIED OUT, ALL SATISFACTORY. REFERENCE M/M 32-44-00 AND 32-42-00 (FOLLOW-UP REPLACEMENT OF VALVE CARRIED OUT).