As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT MADE A PRECAUTIONARY LANDING DUE TO ILLUMINATION OF THE MGB PRESSURE LIGHT, INSPECTION REVEALED THE MGB OIL COOLER LINE HAD BURST AT THE JOINT BETWEEN THE HOSE AND THE METAL CRIMPEND END. THE HOSE WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.