As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OIL COOLER WELD BROKE WHERE THE BOSS IS WELDED ONTO THE COOLER ON INBOARD SIDE. OIL WAS QUICKLY PUMPED OUT OF THE ENGINE SPRAYING OVER THE ENGINE CREATING MUCH SMOKE IN THE COCKPIT AND ZERO READING ON THE OIL PRESSURE GAUGE. FORTUNATELY, ACFT WAS OVER AN AIRPORT AND MADE A SAFE LANDING. THE INSTALLATION OF THE COOLER IS STANDARD ON T18.