As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF F/A'S REPORTED PLASTIC BURNING SMELL IN CABIN. NO VISIBLE SMOKE. DIVERSION TIME 7 MINUTES. COMPLETED CABIN ODOR TROUBLESHOOTING & INSPECTION PER AMM 05 60 00. RAN ALL SYSTEMS AND BOTH ENGINES NO SMELL NOTED. REF NO HISTORY NOTED. OPS NORMAL.