As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCEND SMELL LIKE A GLUE BURN SMELL-PERFORMED TSM 05-50-00-810-831-A PERFORMED GVI OF ENGS AND APU IAW 71-00-00 & 49-16-00 NO LEAKS NOTED ISOLATED BOTH PACKS AND ENG IAW AMM 71-00-00 & 49-16-00 UNABLE TO DUPLICATE A/C OK FOR SERVICE