EMPLOYEE WAS TAKING SILO MEASUREMENTS. SHE MEASURED #8 STONE SILO WITH A DROP CORD AND HAD REMOVED THE CORD FROM THE SILO. SHE BENT DOWN TO PICK UP THE CORD AND WHEN SHE TURNED TO PLACE IT ON ITS HANGER, HER LOWER LEFT BACK WENT OUT. SHE WAS UNABLE TO RETURN TO WORK ON HER NEXT SCHEDULED SHIFT. THUS, ON 5/22/03, IT BECAME A LOST TIME ACCIDENT.