Service difficulty report · Heat Exchanger · Boeing 737890

Difficulty date
July 2, 2012
Submitted
July 25, 2012
Operation
Air carrier
Aircraft
N596AS
Make and model
Boeing 737890
Aircraft serial
35688
Aircraft time
16,142 hours, 5,160 cycles
Engine
Cfmint CFM567B273
Part
Heat Exchanger
Part number
118411934
Part serial
YY083083Y
Condition
Leaking
Location
Nr 2 Engine
Part time
28,581 hours, 9,012 cycles
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

NR 2 ENGINE FUEL LEAK AT DRAIN LINE FOR FUEL/ OIL HEAT EXCHANGER 10 DROPS IAW MINUTE. REMOVED NR 2 ENGINE OIL/ FUEL HEAT EXCHANGER. INSTALLED SERVICEABLE OIL/ FUEL HEAT EXCHANGER REF MM 79-21-02-400-801. STEPS A THRU H (1). COMPLETED INSTALLATION AND LEAK CHECKED GOOD REF MM 79-21-02-400-801 H(2)-I(1) AND 71-00-00700-801-F00. NO LEAKS FROM ENGINE DRAINS.