What was found
(CAN) DURING TAKEOFF ROLL, PILOT NOTICED FUEL PRESSURE ENUNCIATOR LIGHT ILLUMINATION. PILOT IN COMMAND INITIATED REJECTED TAKEOFF. AT TIME FLT CREW ADVISED ATC & RETURNED TO APRON. FURTHER EXAMINATION REVEALED THAT THE NR 1 FUEL BOOST PUMP CIRCUIT BREAKER HAD TRIPPED. MAINT ORGANIZATION CONTACTED. DISCUSSIONS BETWEEN FLT CREW & MAINT PERSONNEL DETERMINED MALFUNCTION OF NR 1 FUEL BOOST PUMP. OP & MAINT PROCEDURES WERE COMPLIED IN ACCORD WITH CO MIN EQUIP LIST 28-01-1. NO ABNORMALITIES WERE NOTED & FLT RESUMED ITS INTENDED ROUTE. OUR MAINT ORGANIZATION REPLACED DEFECTIVE BOOST PUMP.