Service difficulty report · Fuel Heater · Boeing 777222

Difficulty date
August 22, 2013
Submitted
September 11, 2013
Operation
Air carrier
Aircraft
N228UA
Make and model
Boeing 777222
Aircraft serial
30556
Aircraft time
49,732 hours, 5,994 cycles
Engine
Pwa PW40903
System (JASC)
7312 · Fuel Heater
Part
Fuel Heater
Part number
1604826
Part serial
22
Condition
Leaking
Location
Nr 1 Engine
Stage of operation
IN
How discovered
V
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

STATIC OIL LEAK ON NR 1 ENGINE DIRECTLY UNDER SERVO FUEL HEATER, DRIPPING A FEW DROPS PER MINUTE. REMOVED HYDRAULIC LINE CLAMP BRACKET UNDER SERVO FUEL HEATER TO FIND OIL LEAK. OIL IS LEAKING FROM THE SPLIT ON THE BOTTOM OF THE SERVO HEATER. REPLACED SERVO FUEL HEATER. LEAK CHECKED.