As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT CI328 - MAIN DECK SMOKE DETECTOR (NR 1) RED WARNING LIGHT ILLUMINATED AND BELL SOUNDED AND NR 4 SMOKE DETECTOR (A) LIGHT INTERMITTENTLY FLASHED A FEW TIMES DURING THE FIRST THREE HOURS OF FLIGHT. THEY CAN ON AT THE SAME TIME AND WERE ONLY ON FOR A SHORT PERIOD OF TIME. OPERATIONAL CHECK OF SYSTEM REVEALED NO ABNORMALITIES. (M)