As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CARGO FIRE WARNING ILLUMINATED AT APPROX 100 KNOTS ON TAKEOFF ROLL. REJECTED TAKEOFF ACCOMPLISHED & QRH CONSULTED. CRASH & FIRE RESCUE RESPONDED, NEGATIVE INDICATION. BRIEFED CREW AT BLOCK IN, CARGO FIRE WARNING ALERT EXTINGUISHED AFTER EXITING RUNWAY. LOCAL RESPOND UNIT PERFORMED INSPECTION, NO DISCREPANCIES FOUND. PERFORMED MAIN CARGO SMOKE DETECTION TEST IAW MM 26-16-30-5. OPERATIONS CHECKED NORMAL, NO 90 DAY HISTORY. ACFT OK FOR SERVICE.