During rig move and after spotting all Mud tanks, the Mud tester while moving between the tanks, he fell through one of the walkway frame which he had removed its grating. The Mud tester remained suspended by his arms on the frame of the walkway for some time and intentionally jumped down to the ground. He walked out of the Mud tank area and asked for assistance from his colleagues. Medic examined and then referred to Ibri Hospital.