Service difficulty report · Control Valve · Boeing 757222

Difficulty date
August 5, 2011
Submitted
August 29, 2011
Operation
Air carrier
Aircraft
N583UA
Make and model
Boeing 757222
Aircraft serial
26705
Aircraft time
58,673 hours, 20,805 cycles
Engine
Pwa PW2037
Part
Control Valve
Part number
3987505
Part serial
107
Condition
Uncontrollable
Location
Ac Pack
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

LT PACK TEMP UNCONTROLLABLE FOUND TEMP CONTROL VALVE SOLENOID ON VALVE IS LOOSE. REPLACED LT PACK TEMP CONTROL VALVE.