Service difficulty report · Valve · Boeing 777222

Difficulty date
August 8, 2012
Submitted
October 5, 2012
Operation
Air carrier
Aircraft
N791UA
Make and model
Boeing 777222
Aircraft serial
26933
Aircraft time
65,177 hours, 9,453 cycles
Engine
Pwa PW40903
Part
Valve
Part number
8102153
Part serial
509
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

ECON COOL VALVE RIGHT PACK ECONOMY COOLING VALVE NOT IN COMMANDED POSITION. STATUS MSG01- ACTIVE CRUISE MODE DEPENDENT; ECONOMY COOLING VALVE (R PACK) IS NOT IN COMMANDED POSITION. DB- CABIN TEMPERATURE CONTROLLER (R CHAN2) MSG-2124902 ACTIVE ER MODE. REPLACED RIGHT ECON COOLING VALVE PER AMM.