As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE INSPECTION, A VALVE GUIDE CLEARANCE CHECK WAS DONE. THE NR 1 CYLINDER INTAKE PUSHROD WAS FOUND TO HAVE THE STEM LOOSE. IT COULD EASILY BE REMOVED BY HAND. THIS PART IS NORMALLY A PRESS-FIT AND IS NOT REMOVABLE. REPLACED WITH NEW.