Service difficulty report · Controller · Boeing 777222

Difficulty date
December 17, 2010
Submitted
January 7, 2011
Operation
Air carrier
Aircraft
N791UA
Make and model
Boeing 777222
Aircraft serial
26933
Aircraft time
58,444 hours, 8,575 cycles
Engine
Pwa PW4090
Part
Controller
Part number
S351W200100
Part serial
40
Condition
Faulty
Location
Apu
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

APU AUTO SHUTDOWN. REPLACED APU VALVE IAW MM AND THE APU CONTROLLER, OPS CKD NORMAL.