Service difficulty report · Control Valve · Boeing 777222

Difficulty date
January 17, 2012
Submitted
January 26, 2012
Operation
Air carrier
Aircraft
N213UA
Make and model
Boeing 777222
Aircraft serial
30219
Aircraft time
41,338 hours, 9,000 cycles
Engine
Pwa PW4077
Part
Control Valve
Part number
8102042
Part serial
7159
Condition
Faulty
Location
Ac Bay
Stage of operation
NR
How discovered
O
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

PACK FCV R ONE (BUT NOT BOTH) OF THE TWO RIGHT PACK FLOW CONTROL VALVES (FCV) ARE NOT IN THE COMMANDED POSITION. STATUS MSG01- LATCHED CLIMB MODE DEPENDENT; LOWER FLOW CONTROL AND SOV (R PACK) TORQUE MOTOR IS NOT IN COMMANDED POSITION. DB- CABIN TEMPERATURE CONTROLLER (R CHAN2) MSG02- LATCHED CLIMB MODE DEPENDENT; LOWER FLOW CONTROL AND SOV (R PACK) TORQUE MOTOR IS NOT IN COMMANDED POSITION. MSG-2124002 LATCHD CL MODE MSG-2124002 LATCHD CL MODE. REPLACED LOWER CONTROL (R) PACK VALVE PER AMM.