Service difficulty report · Bypass Valve · Boeing 757222

Difficulty date
December 18, 2008
Submitted
December 19, 2008
Operation
Air carrier
Aircraft
N545UA
Make and model
Boeing 757222
Aircraft serial
25323
Aircraft time
64,758 hours, 18,800 cycles
Engine
Pwa PW2037
Engine time
57,010 hours, 19,661 cycles
Part
Bypass Valve
Part number
1043V0300
Condition
Faulty
Location
Fuel/Oil Cooler
Component
Fuel/Oil Cooler
Component part number
471111172
Stage of operation
IN
How discovered
9
Nature of condition
K
Precautionary procedure
K

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

What was found

NR 2 ENG HIGH OIL CONSUMPTION EXCEEDS LIMIT. DUE TO INCREASE IN OIL CONSUMPTION & NO LEAKS REPORTED DURING HIGH POWER REPLACED FCOC & BYPASS VALVE.