EE WAS INSPECTING COOLER COLLECTORS. A LARGE GUST OF WIND BLEW THE DOOR OF THE COLLECTOR CLOSED THEY HAD BEEN HELD OPEN BY DOOR STOPS. THE DOOR STRUCK EE LEFT ARM AS IT SWUNG CLOSED. INITIALLY DIAGNOSED AS BRUISED WRIST FOREARM BUT LATER X RAY SHOWED FRACTURE OF ULNA. EE PLACED ON LIGHT DUTY.