As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT WAS 10 MILES FROM AIRPORT. WHEN A POWER LOSS AND ENGINE VIBRATION WAS NOTED. PILOT INFORMED ATC OF SITUATION AND LANDED AT AIRPORT WITHOUT INCIDENT. UPON INVESTIGATION NOTICED NO COMPRESSION AND BENT PUSH ROD AND PUSHROD HOUSING ON NR 4 CYLINDER. NR 4 CYLINDER REPLACED WITH SERVICEABLE CYLINDER AND AIRCRAFT WAS RETURNED TO SERVICE.