As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING COCKPIT SET UP, HAD FWD AGENT DISCHARGE LIGHT FLASHING ALONG WITH DISCHARGE AGENT ON EAD, FOLLOWED BY FIRE ALERT. FIRED BOTH BOTTLES, ACFT WAS LOADED UNABLE TO VERIFY. TROUBLE SHOT & FOUND THAT THE MSC SOFTWARE HAD GLITCHED. PULLED & RESET CB'S FOR MSC. MSC OPERATION RTS PASSED IAW MM 31-42-01-5. R & R BOTH CARGO FIRE EXTINGUISHER CONTAINERS IAW MM 26-22-01-4. OPERATIONS CHECKED NORMAL.