Service difficulty report · Filter · Boeing 777222

Difficulty date
August 18, 2011
Submitted
September 9, 2011
Operation
Air carrier
Aircraft
N787UA
Make and model
Boeing 777222
Aircraft serial
26939
Aircraft time
63,047 hours, 9,275 cycles
Engine
Pwa PW40903
Part
Filter
Condition
Inoperative
Location
E&E Bay
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
D

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EQUIP COOLING EQUIPMENT COOLING FUNCTION IS INOPERATIVE (LOW FLOW), OR COOLING SUPPLY AIR TEMPERATURE IS EXCESSIVE ON THE GROUND, OR BOTH EQUIPMENT COOLING OVERRIDE VALVE ACTUATORS (NR 1 AND NR 2) HAVE FAILED BITE TEST OR HAVE FAILED TO REACH COMMANDED POSITION. ADVISORY. REPLACED MAIN EQUIP COOLING FILTER, LEAK & OPS TEST OKAY.