As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CARGO FIRE INDICATED, EICAS AND BELL ON T/O ROLL MOMENTARLY AT 80 KTS, THEN EXTINGUISHED. OCCURRED AFTER LANDING AND REMAINED ON BUT NO SMOKE OR FIRE PRESENT. FOUND SHRED OF SAFETY WIRE AROUND DIODE CR2 IN APU/CARGO FIRE CONT MODULE PNL AND REMOVED SAFETY WIRE SHRED. PRECAUTION REMOVED AND REPLACED AFOLTS CARD M2026 AND MAIN CARGO FIRE WARNING TEST OK PER MM 26-15-00. P/N OFF/ON 285N0028-36, S/N OFF D12060, S/N ON D10143.