As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXPERIENCED A PLASTIC ODOR COMING FROM THE AIR CONDITIONING SYS ON CLIMBOUT THROUGH 15000 FT. ODOR DISSIPATED AND THEN REOCCURRED ON DESCENT BELOW 10000 FT. PERFORMED TROUBLESHOOTING IAW FIM WITH PACKS ON. NO ODOR NOTED IN CABIN. FOUND LEFT ACM OVER SERVICED. RESERVICED TO PROPER LEVEL. PERFORMED DUCT BURNOUT IAW AMM. NO ODOR OR HAZE NOTED.