Service difficulty report · Bypass Valve · Boeing 757222

Difficulty date
January 28, 2009
Submitted
June 28, 2009
Operation
Air carrier
Aircraft
N550UA
Make and model
Boeing 757222
Aircraft serial
25398
Aircraft time
64,658 hours, 18,760 cycles
Engine
Pwa PW2037
Engine time
53,355 hours, 18,745 cycles
Part
Bypass Valve
Part number
1043V0300
Condition
Faulty
Location
Oil System
Stage of operation
NR
How discovered
O
Nature of condition
K
Precautionary procedure
O

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

What was found

NR 2 ENG HOC. REPLACED FUEL OIL HEAT EXCHANGER AND BYPASS VALVE. ACCOMPLISHED LEAK CHECK OF NR 2 ENGINE FUEL OIL HEAT EXCHANGER AND BYPASS VALVE. NO LEAKS NOTED.