Service difficulty report · Pump · Boeing 7377H4

Difficulty date
July 25, 2012
Submitted
July 27, 2012
Operation
Air carrier
Aircraft
N421LV
Make and model
Boeing 7377H4
Aircraft serial
32452
Aircraft time
37,315 hours, 21,484 cycles
Part
Pump
Part number
609891005
Part serial
019902561
Condition
Faulty
Location
Fuel System
Stage of operation
UK
How discovered
O
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

EN ROUTE WITH ALL PUMPS ON, CROSSFEED CLOSED, NR 1 FUEL QUANTITY 8620, CENTER FUEL QUANTITY 10100 NR 2 FUEL QUANTITY 8140. CREW NOTICED NR 2 FUEL QUANTITY DECREASING AT 300 - 350 LBS/HOUR. CREW OPENED CROSSFEED, TURNED OFF NR 2 FUEL PUMPS. IMBALANCE CONTINUED TO WORSEN. RESET ALL SWITCHES AND DETERMINED THAT PLANE WOULD LAND WITH 6200 LBS IN CENTER. REMOVED AND REPLACED RIGHT OVERRIDE PUMPS PER MM.

More about the Boeing 737-7H4