As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A SCHEDULED INSPECTION, REMOVED THE HYD CASE FILTER ELEMENT. TRIED TO INSTALL A NEW FILTER ELEMENT IN THE FILTER HSG BOWL, IT WOULD NOT SEAT TO THE BOTTOM OF THE BOWL. UPON FURTHER INSPECTION WE FOUND THAT THE FILTER ELEMENT OUTSIDE DIAMETER WAS LARGER THAN THE FILTER BOWL INSIDE DIAMETER. THIS FILTER ELEMENT WAS RETURNED TO MFG FOR EVALUATION AND A SERVICE CONDITION REPORT WAS SENT TO MFG UNDER REPORT 662147.