What was found
DURING TAKEOFF LOST #1 GENERATOR, #1 YAW, #1 PITCH TRIM. REJECTED TAKEOFF.DEFERRED #1 GENERATOR TO DMI 10468 IAW MEL 24-10-01, CAT. 'B'. COMPLIED WITH SP 24-11-01. MXC NOTIFIED. PLACARD INSTALLED.REMOVED AND REPLACED #1 GENERATOR CONTROL UNIT PER MM 24-21-00. RAN ENGINE #1 PER JRH OPS CHECKED GENERATOR GOOD. THIS CLEARS DMI, MXC NOTIFIED. PLACARD REMOVED.