Service difficulty report · Fuel Heater · Boeing 737990ER

Difficulty date
November 19, 2022
Submitted
November 21, 2022
Operation
Air carrier
Aircraft
N442AS
Make and model
Boeing 737990ER
Aircraft serial
43293
Aircraft time
33,666 hours, 10,656 cycles
Engine
Cfmint CFM567B27E
Part
Fuel Heater
Part number
457311382
Part serial
DK768281
Condition
Leaking
Location
#1 Engine
Part time
31,279 hours, 9,947 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

#1 ENG FUEL SERVO HEATER LEAKING OUT OF TOP CAP. GROUNDED - YES. REMOVED AND REPLACED #1 ENG SERVO FUEL HEATER REF B737-900 AMM 73-11-07/401. LEAK CHECKED #1 ENG FUEL SERVO HEATER. NO LEAKS OR OTHER DEFECTS NOTED.