Service difficulty report · Bypass Valve · Boeing 757222

Difficulty date
September 17, 2008
Submitted
October 15, 2008
Operation
Air carrier
Aircraft
N550UA
Make and model
Boeing 757222
Aircraft serial
25398
Aircraft time
63,838 hours, 18,512 cycles
Engine
Pwa PW2037
Part
Bypass Valve
Condition
Leaking
Location
Wing
Stage of operation
IN
How discovered
V
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

FOUND LEADING EDGE BYPASS VALVE (V10059) LEAKING, CRACKED CASTING. CRACK (FATIGUE) IN CASTING. REPLACED LEADING EDGE BYPASS VALVE.