What was found
MAIN CARGO SMOKE LIGHT NR 4 CAME ON WITH ASSOCIATED ALARM WHILE ON FINAL APPROACH. LIGHT EXTINGUISHED ON ITS OWN AFTER APPROX. I MINUTE. COMPLIED WITH RED TABS AND LANDED UNEVENTFULLY. INTIAL MAIN DECK ( PRE-OFFLOAD ) INSPECTION REVEALED NO SMOKE, FUMES, OR ODOR. DOWN LOADED & CHECKED ALL CONTAINERS NO PROBLEMS FOUND, PERFORMED CARGO SMOKE OPS CHECK PER M/M 26-16-001-5, CHECK GOOD, NOTE: DRY-ICE SHIPPED IN POSITIONS 7 & 8 SUSPECTED CAUSE.