RJ Overstressed In Test

May-21/14_The Bombardier operated CRJ900, C-GWGX, was performing yaw damper effectiveness testing in protected block airspace and temporarily entered an upset condition. During the recovery the aircraft’s published “G” limitations were exceeded. No emergency was declared and the aircraft returned safely to Mirabel.There were no injuries to the two flight crew, one non-flying pilot in the jump seat, and one technician on-board. The aircraft is undergoing a damage assessment.