EE WAS WORKING IN LOCI PIT AND WHEN HE STARTED TO EXIT THE PIT HIS LIGHT CORD WAS CAUGHT. HE TURNED TO UNHOOK HIS LIGHT CORD & MISJUDGED THE STEP IN FRONT OF HIM. HE STUMBLED WHICH CAUSED HIM TO STRIKE HIS BACK ON THE STAIRS. EE HAD A SORE BACK. MISSED 3 SHIFTS & SAW A CHIROPRACTOR.