Service difficulty report · Heater · Boeing 737890

Difficulty date
March 8, 2016
Submitted
March 14, 2016
Operation
Air carrier
Aircraft
N566AS
Make and model
Boeing 737890
Aircraft serial
35182
Aircraft time
35,372 hours, 10,622 cycles
Engine
Cfmint CFM567B27
System (JASC)
7312 · Fuel Heater
Part
Heater
Part number
118411934
Part serial
YY083506
Condition
Leaking
Location
Fuel/Oil
Part time
35,591 hours, 10,981 cycles
Stage of operation
TX
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

ENGINE NR 2 FUEL LEAK NOTED ON WALK AROUND. ACFT GROUNDED. PERFORMED ENGINE RUN ON NR 2 ENGINE. DURING ENGINE RUN NOTED A LEAK OF 8 DROPS PER MINUTE COMING FROM THE MAIN HEAT EXCHANGER OIL FUEL DRAIN LINE, DRIP IS WITHIN LIMITS IAW AMM 71-71-00-200-801 PARA H. R & R NR 2 ENG MAIN OIL/FUEL HEAT EXCHANGER IAW AMM 79-21-02-000-801-F00 AND 79-21-02-400-801-F00. ACCOMPLISHED 5 MINUTE IDLE LEAK CHECK IAW AMM 71-00-00-700-801-F00, NO LEAKS NOTED.