As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE JUST PRIOR TO LANDING IN YVR, LT ENGINE BEGAN TO RUN VERY ROUGH WITH MOST OR ALL POWER LOSS. PILOT SHUT ENGINE DOWN AND LANDED NORMALLY IN YVR. PRELIMINARY INVESTIGATION FOUND BOTH VALVE AND MAG TIMING TO HAVE ALTERED SIGNIFCANTLY.