As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT DEPARTED & DURING CLIMB TO FL350 PAXS INFORMED THE CREW OF SMOKE IN CABIN. CREW NOTICED SMOKE FILLING THE CABIN. AN EMERGENCY WAS DECLARED ALONG WITH AN EMERGENCY DESCENT. ACFT DIVERTED & DURING DESCENT SMOKE DISSIPATED & LANDING WAS UNEVENTFUL. NO EVIDENCE OF FIRE OR SMOKE PRESENT ON THE GROUND. TROUBLESHOT THE DISCREPANCY TO A FAULTY CABIN FAN MOTOR. R & R NO DEFECTS NOTED. ACFT WAS RETURNED TO SERVICE.