Service difficulty report · Pump · Boeing 737990ER

Difficulty date
February 18, 2018
Submitted
February 21, 2018
Operation
Air carrier
Aircraft
N419AS
Make and model
Boeing 737990ER
Aircraft serial
41734
Aircraft time
19,649 hours, 6,470 cycles
Part
Pump
Part number
8283005
Part serial
YA055632
Condition
Leaking
Location
Nr 2 Engine
Part time
19,640 hours, 6,468 cycles
Stage of operation
IN
How discovered
O
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

AIRCRAFT HAS HAD 2 BTB FOR NR 2 ENGINE LEAKING FUEL WITH NFF AFTER ENGINE IS RERUN. SUSPECT FUEL PUMP AS THE SOURCE OF LEAK. SEE SL 737-SL-73-021 FOR ADDITIONAL DETAILS. GROUNDED - YES. ENGINEERING REQUEST - REMOVED AND REPLACED NR 2 ENG FUEL PUMP IAW AMM 73-11-01-000-801-F00 AND MTX TASK CARD N8473000 FOR REMOVAL AND AMM 73-11-01-400-801-F00 AND MTX TASK CARD N8473001 FOR INSTALLATION. ACCOMPLISHED TESTS ON POWERPLANT REF TEST TABLE TEST 3A LEAK CK GOOD TEST 12 ACTUATORS TEST. OPS CK GOOD. EEC TEST 13 OPS CK GOOD NO EEC FAULTS. THIS CLEARS TSR.