Service difficulty report · Pump · Boeing 737823

Difficulty date
October 11, 2025
Submitted
October 13, 2025
Operation
Air carrier
Aircraft
N928AN
Make and model
Boeing 737823
Aircraft serial
29528
Aircraft time
67,403 hours, 28,506 cycles
Part
Pump
Condition
Faulted
Location
Fuel Boost
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

AIRCRAFT WAS GROUNDED: ON CLIMB OUT WE OBSERVED FUEL IMBALANCE AMBER ALERT ON RIGHT WING TANK IN EXCESS OF 1,000 POUNDS AND INCREASING RAPIDLY WITH ALL PUMPS CONFIGURED PROPERLY. VERIFIED RIGHT CENTER BOOST PUMP INOPERATIVE CAUSING FUEL IMBALANCE ON CLIMB OUT.