As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PACK 1 FUMES IN DESCENT AT IDLE BELOW 18,000 FT IT DID NOT CLEAR. PERFORMED TSM 05-50-00-810-831-A ISOLATED ODOR TO PACK 1. NO OIL SMELL NOTED ON PACK 2. PERFORMED DECONTAMINATION OF THE ENVIRONMENTAL CONTROL SYS IAW AMM 21-00-00-615-002-A. NO DEFECTS NOTED. NO SMELLS NOTED. THIS CLEARS DMI# 2441111-2. MOC NOTIFIED. PLACARD REMOVED.