EE WAS WORKING ON #7906 VOLVO LOADER IN FRONT OF AUTO SHOP. HE WAS STANDING ON LADDER PLATFORM ATTEMPTING TO OPEN CAB DOOR. THE LATCH OR DOOR HANDLE WAS NOT WORKING PROPERLY MAKING IT DIFFICUL T TO OPEN DOOR. AS EE PULLED ON DOOR IT SWUNG OUTWARD CAUSING EE TO LOSE BALANCE AND FALL TO GROUND.