As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROXIMATELY 1 HOUR AFTER TAKEOFF, AT FL320 MAIN DECK, FORWARD FIRE WARNING ACTIVATED ACM'S VERIFIED NO FIRE OR SMOKE WAS PRESENT. INTERMITTENT FIRE WARNING CONTINUED FOR APPROXIMATELY ANOTHER 30 MINUTES. SWAPPED FWD MAIN ZONE A DETECTORS SUB ZONES 1 THRU 5 WITH MID MAIN ZONE B DETECTORS SUB ZONE 6-12 IAW MM 26-14-01, A-LOOP OPS CHECKS GOOD. REFERENCE ATTACHED M-7 FORMS FOR LOCATIONS OF SWAPPED DETECTORS.