Service difficulty report · Control Valve · Boeing 777222

Difficulty date
March 27, 2011
Submitted
March 31, 2011
Operation
Air carrier
Aircraft
N211UA
Make and model
Boeing 777222
Aircraft serial
30217
Aircraft time
38,709 hours, 8,526 cycles
Engine
Pwa PW4077
Part
Control Valve
Part number
8102044
Part serial
71
Condition
Faulty
Location
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

PACK FLOW CONTROL VALVE RT(BUT NOT BOTH) OF THE TWO RIGHT PACK FLOW CONTROL VALVES (FCV) ARE NOT IN THE COMMANDED POSITION. STATUS MSG-2124102 LATCHD TA MODE. SUPPLEMENTAL DATA UPDATE REPLACED RH UPPER FLOW CONTROL VALVE, OPERATION CK'D NORMAL.