Service difficulty report · Valve · Boeing 767322

Difficulty date
May 18, 2011
Submitted
May 19, 2011
Operation
Air carrier
Aircraft
N668UA
Make and model
Boeing 767322
Aircraft serial
30024
Aircraft time
43,448 hours, 11,637 cycles
Engine
Pwa PW4056
Part
Valve
Part number
340545
Part serial
702
Condition
Faulty
Location
Hyd System
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

HMG CONTINUES TO RUN WITH SWITCH RELEASED. HYD GEN VALVE MESSAGE ON STATUS AND MAINT PG BY- 121047 :PER FIM 24-25-00-FIG 103 BLOCK 10 28VDC PRESENT ON PIN 3. PLEASE REPLACE VALVE V147. REMOVED AND REPLACED HYD MOTOR GEN SHUTOFF VALVE PER MM. OPS CHECKED AND FOUND LEAKING FROM MAIN BODY. PART WAS REPLACED. REPLACED HYD MOTOR GEN VALVE V147. OPS CHECKED GOOD. NO LEAKS NO FAULTS. REPLACED HYDRAULIC MOTOR GEN VALVE V147 REF MM. OPS CHECKED GOOD. NO LEAKS NO FAULTS.