As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INITIAL CLIMB AND ENROUTE CLIMB, THE AIR CONDITIONING SYSTEM HAD AN OILY ODOR AND TASTE IN THE COCKPIT AND MAIN CABIN. MAINTENANCE RAN AIR CONDITIONING PACKS AND ENGINE PNEUMATICS AT TAKEOFF POWER. NO ODORS WERE NOTED. OPERATIONAL CHECKS WERE COMPLETED IAW B767 FRM 21, FIG 25A.