As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE STIFFENER THAT IS LOCATED BENEATH THE DOUBLER FOR EXTERNAL SCAVENGE OIL FILTER KIT WAS FOUND CRACKED. ONE OF THE NUTS HOLDING THE OIL FILTER WAS LOCATED TOO CLOSE TO THE RADIUS OF THE STIFFENER WHICH WAS THE CAUSE OF THE CRACK