As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 8348, LAS-JFK. DURING DESENT BOTH PILOTS DETECTED 'MAGIC MARKER' SMELL REPORTED BY PREVIOUS CREW SMELL WAS STRONG ENOUGH THAT BOTH PILOT NEEDED O2 AS A PRECAUSTION AIRCRAFT IS NOT FIT GOR SERVICCE (EVENT LASTED FROM 23000-5000) ; APU WAS REPLACED DUE TO ODOR EVENT SEE LOGPAGES 4791293 ITEM 1 4791293 ITEM 2 47912941 ITEM 1 LEVEL C DECOM WAS ACCOMLISHED UNDER WO#1524452.