As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUME EVEN: WHILE DESCENDING THROUGH 1100 UN VMC STRONG SMELL IN COCKPIT FOLLOWING EQRH PROCEDURE ISOLATING PACK 1 SMELL SLOWLY WENT AWAY-TI 2100-2004-NEO ACCOMPLISHED ON WO# 337985. DURING INSPECTIONS FOUND OIL CONTAMINATION IN ENG 1 OPV, LPC, & HPC. PERFORMED DECONTAMINATION OF ECS REF AMM 21-00-00. SEE LBP 3608228-1 FOR ENG 1 OIL CONTAMINATION