As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF ROLL, PILOT NOTICED ALL RADIO LIGHTS FLICKERING AND VOLTMETER AT AROUND 21 VDC. PILOT ABORTED TAKEOFF AND PERFORMED RUN-UP AGAIN, OK. STARTED TAKEOFF AND HAD SAME PROBLEM. AIRCRAFT TURNED OVER TO MAINTENANCE. MAINTENANCE TECH WENT OUT TO START AIRCRAFT AND FOUND STARTER INOPERABLE. TROUBLESHOT AND FOUND POWER UP TO THE STARTER. REPLACED STARTER, OPS CHECK NORMAL.