Service difficulty report · Isolation Valve · Boeing 767322

Difficulty date
August 4, 2013
Submitted
August 8, 2013
Operation
Air carrier
Aircraft
N653UA
Make and model
Boeing 767322
Aircraft serial
25391
Aircraft time
95,164 hours, 14,999 cycles
Engine
Pwa PW4060
Part
Isolation Valve
Condition
Obstructed
Stage of operation
IN
How discovered
V
Nature of condition
C
Precautionary procedure
K

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

What was found

FWD EQUIPMENT VALVE EICAS MESSAGE. FOUND CLAMP WEDGED INSIDE VALVE V93. REPLACED ACRU ISOLATION VALVE V93. EQUIPMENT COOLING GROUND CHECKS GOOD.