As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PART FAILED DURING NORMAL SERVICE. PART HAD PREVIOUSLY BEEN REPAIRED USING EPOXY. THE EPOXY FAILED ALLOWING THE COOLER TO BEGIN LEAKING AT POINT OF ORIGINAL REPAIR. RECOMMEND ELIMINATING USE OF EPOXY ON OIL COOLERS AS EPOXY FAILURE IS COMMON.