As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED SHORTLY AFTER TAKEOFF THE CABIN HAD AN ODOR OF SMOKE OR MELTING PLASTIC. CREW PERFORMED EMERGENCY CHECK LIST AND RETURNED TO DEPARTURE AIRPORT WITH NO FURTHER SMOKE OR ODOR IN COCKPIT. UPDATE THIS REPORT AFTER MAINTENANCE.