As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR CONDITIONING SYSTEM HAS A CHEMICAL OR OIL ODOR. OIL ODOR MOST NOTICABLE. ACCOMPLISHED AMM 05-51-56-201. NO SMOKE OR FUMES NOTED. ACCOMPLISHED 21-00-01-802-022 AND REPLACED ALL THREE COALESCER BAGS IAW AMM 21-51-05-000-801. RETURNED ACFT TO SERVICE.