At around 1:30pm on Saturday May 18th, RS741B and A726 were dispatched along with Montgomery County Fire/Rescue units for a report of a person trapped under a trailer on the inner loop of I495 between Rockville Pike and Connecticut Avenue.  Units arrived to find a trailer loaded with an estimated 10,000 pounds of bricks had collapsed when the driver was attempting to change the tire.  Crews quickly stabilized the trailer then lifted the weight off the tire using a lifting cylinder.  Once this was completed, the driver was freed and transported by A726.