Service difficulty report · Pump · Boeing 737990ER

Difficulty date
March 13, 2019
Submitted
March 14, 2019
Operation
Air carrier
Aircraft
N419AS
Make and model
Boeing 737990ER
Aircraft serial
41734
Aircraft time
23,695 hours, 7,761 cycles
Part
Pump
Part number
8283005
Part serial
YA0580708
Condition
Leaking
Location
Nr 1 Engine
Part time
14,082 hours, 4,640 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

WHILE ACCOMPLISHED LEAK CHECK ON HAND-CRANKING DRIVE COVER ON NR 1 ENGINE FOUND FUEL PUMP LEAKING FUEL. GROUNDED - YES. REPLACED FUEL FILTER ORING ON NR 1 ENG PER AMM 73-11-02-400-801-F00. NO HELP. ON ENG RUN FOUND RELIEF VALVE ASSY LEAKING. REMOVED & REPLACED NR 1 ENGINE FUEL PUMP PER AMM 73-11-01-000/400-801-F00. ACCOMPLISHED TESTS IAW AMM 71-00-00-800-811-F00 TABLE 502. GROUND VERIFICATION REPAIR CONFIRMATION SUCCESSFUL.