What was found
PILOT RETURNED FROM FLIGHT AND NOTIFIED MAINTENANCE OF AN OIL LEAK ON THE LEFT ENGINE. IT WAS DISCOVERED THAT A LEAK WAS COMING FROM NR 2 CYLINDER EXHAUST PUSHROD TUBE. WHEN THE TUBE WAS REMOVED A CRACK WAS FOUND APPROXIMATELY 4 INCHES FROM THE CYLINDER END. THE CRACK STARTED AT A DENT IN THE TUBE WHICH SEEMS TO BE FROM SHIPPING DAMAGE. AS THIS ENGINE WAS NOT SHIPPED IN STANDARD CRATE SUCH AS THE MFG USES. THE PART WAS REMOVED AND REPLACED.