As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) METAL FOUND IN OIL SUCTION SCREEN. AFTER REMOVAL OF NR 1 & 2 CYLINDER FOR INSIDE INVESTIGATION. BOTH HYDRAULIC TAPPET ON THAT CYLINDERS FOUND CORRODED WITH PARTS MISSING ON THE EDGE OF THE BODY. ENGINE REMOVED. FURTHER REPORTS WILL FOLLOW BY THE OVERHAUL SHOP.