Service difficulty report · Isolation Valve · Boeing 777222

Difficulty date
June 19, 2013
Submitted
August 14, 2013
Operation
Air carrier
Aircraft
N779UA
Make and model
Boeing 777222
Aircraft serial
26941
Aircraft time
68,976 hours, 12,162 cycles
Engine
Pwa PW4077
Part
Isolation Valve
Condition
Malfunctioned
Location
Apu Fuel
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

APU FUEL ISOLATION VALVE STATUS MESSAGE. REPLACED FUEL APU ISOLATION ACTUATOR IAW MM, OPS CHECKED GOOD NO OTHER DEFECTS NOTED.