Service difficulty report · Transfer Valve · Boeing 747122

Difficulty date
May 29, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N850FT
Make and model
Boeing 747122
Aircraft serial
19755
Part
Transfer Valve
Part number
78014
Condition
Leaking
Location
Rudder
Stage of operation
CR
Nature of condition
K, J
Precautionary procedure
O

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

What was found

ON CLIMBOUT, NR 3 HYDRAULIC QUANTITY WENT TO 0. SYSTEM SHUTDOWN AS PER ABNORMAL CHECK LIST. FOUND UPPER RUDDER TRANSFER VALVE LEAKING FROM VALVE ITSELF. REPLACED VALVE ASSEMBLY, LEAK CHECKED AND OPERATIONAL CHECKED PER 27-21-16.