Service difficulty report · Isolation Valve · Boeing 777222

Difficulty date
June 12, 2008
Submitted
July 15, 2008
Operation
Air carrier
Aircraft
N788UA
Make and model
Boeing 777222
Aircraft serial
26942
Aircraft time
48,694 hours, 7,259 cycles
Engine
Pwa PW40903
Part
Isolation Valve
Part number
32907706
Condition
Faulty
Location
Environ Controls
Stage of operation
NR
How discovered
9
Nature of condition
J
Precautionary procedure
O

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

What was found

L BLEED ISOLATION VALVE FAULT. SUSPECT FAULTY ISOLATION VALVE. REPLACED LT ISOLATION VALVE PER MM 36-12-01. AC OK FOR SERVICE.