Service difficulty report · Heat Exchanger · Boeing 737890

Difficulty date
April 16, 2019
Submitted
April 18, 2019
Operation
Air carrier
Aircraft
N569AS
Make and model
Boeing 737890
Aircraft serial
35184
Aircraft time
45,857 hours, 13,953 cycles
Engine
Cfmint CFM567B27
Part
Heat Exchanger
Part number
453328039
Part serial
YB028556
Condition
Leaking
Location
Nr 2 Engine
Part time
45,857 hours, 13,953 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

REF T/C #78472000 #2 ENGINE INLET AND FAN BLADES - DETAILED INSPECTION FOUND FUEL OIL HEAT EXCHANGER IS LEAKING FUEL FROM IT'S BASE. GROUNDED - YES. REMOVED #2 ENG MAIN FUEL HEAT EXCHANGER REF B737-800 AMM 79-21-02-000-801-F00. INSTALLED SERVICEABLE MAIN OIL FUEL HEAT EXCHANGER PER AMM 79-21-02-400-801-F00. LEAK AND OPS CHECK GOOD. SERVO FUEL HEATER INSTALLATION ACCOMPLISHED PER AMM 73-11-07-801-F00. LEAK AND OPS CHECK GOOD.