Service difficulty report · Oil Filter · Boeing 747422

Difficulty date
August 14, 1995
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N180UA
Make and model
Boeing 747422
Aircraft serial
25224
Engine
Pwa PW4056
Part
Oil Filter
Part number
70R654
Condition
Leaking
Location
Nr 2 Engine
Stage of operation
CL
Nature of condition
K, J
Precautionary procedure
E

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

What was found

THE NR 2 ENGINE WAS SHUTDOWN DUE TO LOSS OF OIL QUANTITY AND PRESSURE. OIL FILTER HOUSING COVER LEAK CAUSED BY A FAILED HELICOIL. MODIFIED COVER, REPLACED BOLT AND HELICOIL WITH STUD AND NUT.