Service difficulty report · Control Valve · Boeing 777222

Difficulty date
March 15, 2011
Submitted
April 4, 2011
Operation
Air carrier
Aircraft
N220UA
Make and model
Boeing 777222
Aircraft serial
30223
Aircraft time
40,813 hours, 5,072 cycles
Engine
Pwa PW40903
Part
Control Valve
Part number
8102044
Part serial
169
Condition
Faulty
Location
Lt A/C Pack
Stage of operation
NR
How discovered
O
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

EICAS MSG " PACK FCV L " ON STATUS PAGE. MEL COMPLIED WITH MAT MSG: 21-24101 UPPER FLOW CONTROL VALVE LT PACK. REPLACED UPPER FLOW CONTROL VALVE AND OPS CHECKED NORMAL.