As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT ABORTED TAKEOFF AFTER SEEING SOME SMOKE COMING FROM THE LEFT ENGINE NACELLE. AFTER INVESTIGATION IT WAS FOUND THAT A STUD HAD BACKED OFF AND FELL OFF THE ENGINE ALLOWING ENGINE OIL TO COME OUT OF THE HOLE AND DRIP ONTO THE EXHAUST PIPES.