Service difficulty report · Pump · Boeing 737990ER

Difficulty date
November 26, 2021
Submitted
November 30, 2021
Operation
Air carrier
Aircraft
N479AS
Make and model
Boeing 737990ER
Aircraft serial
60576
Aircraft time
22,517 hours, 7,125 cycles
Part
Pump
Part number
8283005
Part serial
YA056839
Condition
Leaking
Location
#1 Engine
Part time
19,143 hours, 6,472 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

RAMP REPORTS FUEL LEAK ON #1 ENG DURING PUSHBACK. GROUNDED - YES. CREW RAN #1 ENGINE AND FUEL POURING FROM FUEL PUMP DRAIN PAD. APPROXIMATE LEAK RATE ESTIMATED AT 3 GALLONS P[ER MINUTE.REMOVED AND REPLACED FUEL PUMP REF T/C N8473002 AND N8473003. OPS CHECK GOOD.