As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THERE IS AN ODOR MID CABIN THAT SMELLS LIKE BURNING PLASTIC ODER REPORTED BY CABIN CREW WHEN CABIN AIR WAS TRANSFERRED TO PACKS. SMELL DISSAPATED BEFORE MAINT ARRIVED. FORM 46-6020 COMPLETED. CABIN WALK THROUGH COMPLETED AND EXTERIOR CHECKS WITH NO FINDINGS. PACKS OPERATION NORMAL. OK FOR SERVICE.