As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - SMOKE LIGHT CAME ON INTERMITTENTLY 4 TIMES. VISUALLY DETECTED NO SMOKE IN THE CARGO COMPARTMENT. MAINTENANCE PLACED THE THE SMOKE DETECTOR ON MEL NR 226150. MEL CLEARED BY REPLACING THE NR 2 SMOKE DETECTOR. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.