Service difficulty report · Seal · Boeing 747422

Difficulty date
March 17, 2011
Submitted
April 4, 2011
Operation
Air carrier
Aircraft
N199UA
Make and model
Boeing 747422
Aircraft serial
28717
Aircraft time
54,946 hours, 6,522 cycles
Engine
Pwa PW4056
Part
Seal
Part number
70R606600U
Condition
Leaking
Location
Nr 3 Engine
Stage of operation
IN
How discovered
O
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 3 ENG HIGH OIL CONSUMPTION EXCEEDS LIMIT. ACCOMPLISHED OIL SYSTEM STATIC LEAK CHECK & FOUND STARTER DRIVE OIL SEAL LEAKING. REPLACED SAME SEAL. NEED TO ACCOMPLISH NR 3 ENG IDLE RUN LEAK CK FOR STARTER DRIVE CARBON SEAL REPLACEMENT. ACCMP'D RUN, NO LEAKS NOTED.