Service difficulty report · Actuator · Boeing 767322

Difficulty date
April 19, 2010
Submitted
April 23, 2010
Operation
Air carrier
Aircraft
N658UA
Make and model
Boeing 767322
Aircraft serial
27113
Aircraft time
75,531 hours, 12,288 cycles
Engine
Pwa PW4060
Part
Actuator
Part number
S343T00339
Part serial
N68572
Condition
Stuck
Location
Apu Fuel Valve
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

UNABLE TO START APU 'APU FAULT' EICAS MSG. FOUND 'NO FLAME' MSG ON APU CONTROL BOX. PERFORMED FIM AND FOUND APU FUEL VALVE STUCK IN CLOSED POSITION. REPLACED APU FUEL VALVE ACTUATOR. APU OPS TEST PERFORMED, APU IS WORKING PROPERLY.