Over-exertion (Not Elsewhere Classified)
Employee was operating haul truck in pit when EE pulled over on level ground to take a quick stretch and walk around the machine to do a mid-day equipment check. When EE reached the ground level from the ladder, EE turned to the right to begin walking but EE's right foot was against material on the ground. When EE rotated laterally, EE felt/heard a pop followed by knee pain.