AFTER TAKING A BALL MILL DENSITY SAMPLE, EE STEPPED BACKWARDS, LOST HIS BALANCE AND FELL AGAINST A HAND RAILING CAUSING A FRACTURE TO HIS RIB. EE WENT TO THE CLINIC AND WAS GIVEN A LIFTING RES TRICTION WHILE RIB WAS TOO SORE. EE HAD VACATION FROM 5/18/00-5/27/00 AND RETUREND W/NO COMPLICATIONS.