As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX- FLIGHT ATTENDENT REPORTED SMOKE IN THE CABIN AFTER DEPARTURE FROM PDX. CABIN A/C PAC AND #2 BLEED AIR SWITCHED OFF AND SMOKE CEASED. AIRCRAFT RETURNED TO FIELD AND LANDED WITHOUT FURTHER INCIDENT. CABIN PACK REPLACED I/A/W MAINTENANCE MANUAL. PAC OPS CHECKED GOOD ON GROUND RUN. AIRCRAFT RETURNED TO SERVICE.