As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 5650 - ATO - REJECTED TAKEOFF BELOW 80 KTS DUE TO APU FAULT DURING NO BLEED TAKEOFF. CORRECTIVE ACTION: APU PLACED ON MEL FOR DC POWER LOSS FAULT. PERFORMED HIGH ENERGY STOP INSPECTION. NO DEFECTS FOUND. LATER, REPLACED APU ECU AND APU BATTERY BUS CIRCUIT BREAKER. (LP 7743354