Service difficulty report · Heat Exchanger · Boeing 777222

Difficulty date
April 8, 2011
Submitted
May 5, 2011
Operation
Air carrier
Aircraft
N781UA
Make and model
Boeing 777222
Aircraft serial
26945
Aircraft time
60,119 hours, 10,736 cycles
Engine
Pwa PW4077
Part
Heat Exchanger
Part number
52G159600U
Condition
Leaking
Location
Lt Engine
Stage of operation
IN
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

FUEL SEEPAGE UNDER LEFT ENG. FUEL LEAKING FROM NR 1 ENG IDG AIR-OIL HEAT EXCHANGER, REPLACED PER MM. OPS NORMAL NO LEAKS.