Service difficulty report · Pump · Boeing 737990ER

Difficulty date
August 30, 2017
Submitted
September 1, 2017
Operation
Air carrier
Aircraft
N468AS
Make and model
Boeing 737990ER
Aircraft serial
41735
Aircraft time
12,656 hours, 4,240 cycles
Engine
Cfmint CFM567B27E
Part
Pump
Part number
8283005
Part serial
YA014015C
Condition
Leaking
Location
Nr 2 Eng Fuel
Part time
45,038 hours, 17,985 cycles
Stage of operation
TX
How discovered
O
Nature of condition
K
Precautionary procedure
D

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING START OF THE NR 2 ENGINE. FUEL FOUND LEAKING. GROUND CREW REPORTED FUEL LEAK DURING AND AFTER START. ACFT GROUNDED. PERFORMED ENGINE VENTS AND DRAIN INSPECTION ON THE NR 2 ENGINE. RAN THE NR 2 ENGINE TWO TIMES AT IDLE POWER. FUEL LEAKING DURING START AND STOPPED 2 MINUTES INTO THE RUN FROM FUEL PUMP DRAIN LINE VALVE BODY. REMOVED FUEL PUMP IAW AMM 73-11-01-000-801. WITH FUEL PUMP ON BENCH, SPLIT FUEL PUMP FROM HMU IAW T/C N8473000, INSTALLED A SERVICEABLE FUEL PUMP TO HMU IAW T/C N8473001. INSTALLED FUEL PUMP TO GEARBOX IAW AMM 73-11-01-400-801 F00. ACCOMPLISHED AN IDLE LEAK CHECK TEST 3A, ACTUATORS TEST NR 12 AND EEC BITE TEST NR 13, ALL TESTS PASSED IAW T/C N8473001.