EE WAS WORKING AT A DRILL PRESS IN THE MACHINE SHOP AND HE TURNED TO PLACE A 1 LB HAMMER ON A WORK BENCH AND HE FELT HIS BACK POP AND CAUSED PAIN. EE HAS A MEDICAL HISTORY OF BACK PROBLEMS. HE DID NOT MISS WORK OR HE WAS NOT ON RESTRICTED WORK, BUT HE DID SEE A CHIROPRACTOR.