As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED. OIL FUMES IN COCKPIT WITH APU BLEED ON REPORTED. ACCOMPLISHED J/C 26L00021001 (INITIAL ODOR), J/C 26L00021002 (ODOR/FUMES) AND J/C 26L0002104 (DECONTAMINATION OF ENVIRONMENTAL CONTROL SYSTEM). FOUND OIL LEAK AT APU FUEL CONTROL UNIT AT GEAR BOX. REPLACED O-RING AT FUEL CONTROL UNIT AT GEAR BOX PER AMM 49-32-11. NO LEAKS, OK FOR SERVICE.