Service difficulty report · Control Valve · Boeing 767322

Difficulty date
July 29, 2009
Submitted
July 29, 2009
Operation
Air carrier
Aircraft
N656UA
Make and model
Boeing 767322
Aircraft serial
25394
Aircraft time
70,314 hours, 11,399 cycles
Engine
Pwa PW4060
Part
Control Valve
Part number
3987505
Part serial
126
Condition
Faulty
Location
Ac 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

RIGHT PACK INOP LIGHT ILLUMINATED. OK IN NORMAL STANDBY. CONTROLLER FAULTS RT RAM AIR ACTUATOR. SYSTEM OPERATES NORMALLY IN STANDBY. RANG WIRES FROM RELAY K49 TO RT RAM DR ACT AND RT PACK CNTLR TO RT RAM DR ACT. CHECKED GOOD. REPLACED PACK TEMP CONTROL VALVE. OPS CHECKED PACK, OPERATION NORMAL.