Service difficulty report · Heater · Boeing 737890

Difficulty date
November 21, 2017
Submitted
November 27, 2017
Operation
Air carrier
Aircraft
N559AS
Make and model
Boeing 737890
Aircraft serial
35178
Aircraft time
41,524 hours, 12,343 cycles
Engine
Cfmint CFM567B27
Part
Heater
Part number
457311382
Part serial
EM158756
Condition
Leaking
Location
Fuel Servo
Part time
31,493 hours, 9,459 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

FUEL HEATER SERVO LEAKING FUEL ON THE NR 1 ENGINE. ACFT GROUNDED. REMOVED AND REPLACED THE SERVO FUEL HEATER IAW AMM 73-11-07-000-801-F00, AND AMM 73-11-07-400-801-F00. LEAK CHECKED GOOD ON GROUND RUN. NO DEFECTS NOTED.