As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN CRUISE FLIGHT, THE FLIGHT CREW REPORTED A STRONG OIL ODOR AND SMOKE IN THE CABIN. THE CREW WAS ABLE TO CLEAR THE SMOKE AND ODOR BY TURNING OFF THE CABIN A/C PACK. DETERMINED THAT THE COCKPIT A/C PACK HAD FAILED. INSTALLED A REPAIRED UNIT AND PERFORMED AN OPS CHECK OF THE SYS WITH NO FAULTS FOUND. THE ACFT WAS RETURNED TO SERVICE WITH NO FURTHER ISSUES.