As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED FA COMPARTMENT SMELLS OF OIL WITH PACKS ON, IN FLIGHT AND ON THE GROUND. THE AIRCRAFT WAS GROUNDED. OPERATING OF BOTH PACKS, A STRONG ODOR OF OIL WAS ISOLATED TO THE RIGHT PACK EXHAUST SYSTEM. CONDITIONAL INSPECTION OF SYSTEM IAW B767 AMM 21-00-21 COMPLIED WITH. NO CONTAMINATION WAS NOTED. REMOVED AND REPLACED RIGHT AIR CYCLE MACHINE. OPS CHECKED SATISFACTORY. AIRCRAFT RELEASED TO SERVICE.