Service difficulty report · Control Valve · Boeing 777222

Difficulty date
December 14, 2013
Submitted
December 16, 2013
Operation
Air carrier
Aircraft
N206UA
Make and model
Boeing 777222
Aircraft serial
30212
Aircraft time
64,380 hours, 9,044 cycles
Engine
Pwa PW4090
Part
Control Valve
Part number
8102044
Part serial
24
Condition
Stuck
Location
Ac Bay
Stage of operation
IN
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

RT PACK EICAS MSG & STATUS MSG ILLUMINATED, PACK OFF LIGHT ALSO. RT PACK UPPER FCV IS STUCK CLOSED. LOWER FCV IS CYCLING. REPLACED UPPER FCV & CLEANED LOWER FCV AIR FILTER. ACCOMPLISHED PACK OPERATIONAL CHECK.