What was found
DURING CRUISE FLIGHT, THE NR 1 AFT BOOST PUMP CIRCUIT BREAKER POPPED AND WOULD NOT RESET. AIRCRAFT DIVERTED TO FDS AND LANDED WITHOUT INCIDENT. PLACED BOOST PUMP ON MEL PLACARD NR 525112, DEFERRED TO OVERNIGHT MAINTENANCE. RAN BOOST PUMP FOR 1.5 HOURS, NO TROUBLE FOUND. INSPECTED BOOST PUMP CANNON PLUG FOR CORROSION, NONE FOUND. PLACED NR 1 FUEL BOOST PUMP BACK IN SERVICE. REMOVED FROM MEL.