As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A NORMAL MX ACTIVITY AND BEFORE PUTTING BACK THE TOP COWLING, 1 CRACK ON EACH ENG CRANKCASE WERE FOUND. BOTH CRACKS START FROM THE TOP SPLIT OF THE CASES (FROM AN ATTACHMENT BOLT) AND GOING DOWN APPROX 1 INCH. ENGINE HAS BEEN REMOVED AND SENT TO ENGINE SHOP FOR INVESTIGATION AND REPAIR.