As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED. ON TAKEOFF AND LANDING, OILY OLD SOCK ODOR IN THE COCKPIT. APU OIL LEAK FOUND ABOVE INLET PLENUM. ACCOMPLISHED DECONTAMINATION OF ENVIRONMENTAL CONTROL SYSTEM AND HIGH POWER ENGINE RUN. ACCOMPLISHED TSM TASK 49-00-81-810-874. NO LEAKS NOTED. OPERATIONAL CHECK GOOD.