As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON APPLYING TAKEOFF THRUST AND INITIAL ROLL, NR 2 FIELD & GB OPENED WITH DIFF FAULT SYSTEM 2 INDICATION ON S/O SECONDARY PANEL ABORTED T/O AND RETURNED TO PARKING. REMOVED AND REPLACED GEN CONTROL PANEL GROUND RAN ALL ENGINES OPS CHECKED GOOD PER 24-20-0.