Service difficulty report · Isolation Valve · Boeing 757222

Difficulty date
September 15, 2010
Submitted
September 17, 2010
Operation
Air carrier
Aircraft
N589UA
Make and model
Boeing 757222
Aircraft serial
28707
Aircraft time
50,780 hours, 14,155 cycles
Engine
Pwa PW2037
Part
Isolation Valve
Part number
2790598101
Part serial
1715
Condition
Faulty
Location
Position 1
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

ISOLATION VALVE WILL NOT CLOSE. FOUND VALVE NOT FULLY FUNCTIONAL. REPLACED ISOLATION VALVE, OPS CHECKS OK.