As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GNDED. DURING DESCENT THE FLIGHT CREW REPORTED A DIRTY SOCK SMELL IN THE CABIN, RESULTING IN THE CREW RECEIVING MEDICAL EVALUATION. FOUND EVIDENCE OF OIL WETTING IN THE HPC SECTION OF THE NR 1 ENG. REPLACED IT IAW TASK CARD 26L40071001. A SATISFACTORY LEAK & OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ODORS BEING NOTED.