EE WAS ASSISTING ANOTHER TO OPEN A DOOR ON A FAN HOUSING. HE DIDN'T SUPPORT THE WEIGHT OF THE DOOR. AS HE RELEASED THE BRACKET HOLDING THE DOOR IN PLACE, THE DOOR SWUNG DOWNWARD AND STRUCK HIM IN THE CHEST. DOCTOR DIAGNOSED A BRUISED CHEST AND PRESCRIBED MEDICATION. EE HAD NOT MISSED WORK NOR WAS ON LIGHT DUTY.