Two car M.V.A. with overturn occurred at the intersection of William Floyd Pkwy. and Grand Ave. Mastic, N.Y. @ approx. 10:50 p.m. Mastic F.D. and Ambulance responded. One patient transported to Brookhaven Memorial Hosp. in stable condition. Chief Mikert and Chief Amato, of the Mastic F.D. were in charge of the scene.