As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX- EN ROUTE FROM EUG TO SEA, SMOKE WARNING LIGHT FLASHED THREE TO FOUR TIMES THEN WENT OUT. THIS OCCURED TWO SEPARATE TIMES. FLIGHT THEN DIVERTED TO PDX. LANDED WITHOUT INCIDENT. MX INSPECTED AIRCRAFT AND FOUND NO EVIDENCE OF SMOKE OR FIRE. REMOVED AND REPLACED BOTH FWD AND AFT CARGO PIT SMOKE DETECTORS. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. NUMBER TWO SMOKE DETECTOR SERIAL NUMBER 0936. TIME SINCE REPAIR 545 HOURS, 761 CYCLES.