The arrow is the section that failed according to the shop. They explained the bottom screw was “stripped out” and no longer holding at that point causing the failure. I’m not sure if this is correct but I’m assuming when they jacked the engine up they did not remove the hose/clamp on that area causing pressure on the plastic area and the screw - causing the leak and the inability to tighten the screw back in to place. Someone please correct me if I’m totally off on this.