THE EE ALLEGED THAT HE WAS BEING LOADED BY THE 92G AND THAT A ROCK ROLLED ACROSS THE BED AND STRUCK THE OFF SIDE OF THE BED, CAUSING INJURY TO LOWER BACK. INJURY REPORTED 3-19. EE WORKED 3-14 3-15. WAS OFF WORK 3-18 FOR DOC APPT. PRE SCHEDULED WORKED 3-19 REPORTED COMP 3-26.