Service difficulty report · Seal · Boeing 767322

Difficulty date
July 21, 2010
Submitted
July 28, 2010
Operation
Air carrier
Aircraft
N669UA
Make and model
Boeing 767322
Aircraft serial
30025
Aircraft time
40,212 hours, 10,685 cycles
Engine
Pwa PW4056
Part
Seal
Condition
Leaking
Location
Cockpit Window
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

HISSING SOUND FROM FIRST OFFICER'S FWD WINDSHIELD, SUPPLEMENTAL DATA UPDATE CHECKING FOR PRESSURE LEAK. INSPECTED AND ACCOMPLISHED TORQUE CHECK. REPLACED NR 1 RIGHT WINDOW PER MM. FIRST TORQUE. PRESSURIZED AIRCRAFT, NO HELP. LEAK IS COMING OUT OF PRC FILLET ABOVE WINDOW. AREA MARKED IN RED. VERIFIED NO LEAKS OUT OF WINDOW. CLEANED OUT FILLET SEALED AREA REF ABOVE, FOUND POCKET AREA (PARTIAL). ACCOMPLISHED PRESSURIZATION LEAK CHECK. NO LEAKS FOUND AND NO HISSING SOUND IN COCKPIT AFTER FILLET SEAL REPLACEMENT.