Service difficulty report · Valve · Boeing 757232

Difficulty date
July 9, 2000
Submitted
July 14, 2000
Operation
Air carrier
Aircraft
N623DL
Make and model
Boeing 757232
Aircraft serial
22913
Aircraft time
45,856 hours, 23,717 cycles
Part
Valve
Condition
Leaking
Location
Hyd Bypass
Stage of operation
CR
How discovered
V
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

A/C HAD HYDRAULIC LEAK ON LEFT SYS, IN FLIGHT PUMPS TURNED OFF AT .47, TURNED PUMPS ON TO LAND A/C. FOUND RUDDER RATIO CHANGER BYPASS VALVE WITH PIN HOLE LEAK IN VALVE BODY. REPLACED VALVE, LEAK AND OPS CHECK NORMAL.