As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MID CARGO SMOKE DETECTION ACTIVATED, BOTH SYSTEMS. CREW FIRED BOTH FIRE EXTINGUISHING BOTTLES AND MADE AN UNSCHEDULED LANDING AT IND. THERE WAS NO SMOKE OR FIRE. PLACARD MID CARGO SMOKE DETECTION AND FIRE EXTINGUISHING SYSTEMS PER MEL. THE MID CARGO COMPARTMENT CEU WAS REPLACED TO CORRECT THE SMOKE DETECTION SYSTEM MALFUNCTION. CHECK-C 7-28-00 JFK.