Service difficulty report · Isolation Valve · Boeing 767322

Difficulty date
May 21, 2013
Submitted
June 3, 2013
Operation
Air carrier
Aircraft
N673UA
Make and model
Boeing 767322
Aircraft serial
29241
Aircraft time
48,031 hours, 12,158 cycles
Engine
Pwa PW4052
Part
Isolation Valve
Part number
2780539107
Part serial
1445
Condition
Failed
Location
Left
Stage of operation
IN
How discovered
9
Nature of condition
J
Precautionary procedure
K

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

What was found

LEFT ISOLATION VALVE LIGHT ILLUMINATED. ASSOCIATED BLEED ISOLATION VALVE EICAS MESSAGE IS DISPLAYED. R & R ISOLATION VALVE IAW MM, OPS CHECKED OK.