EE WAS PULLING ON A RATCHET WRENCH THAT HAD A 1-5/8"" SOCKET ON IT. HE WAS TRYING TO TURN A NUT ON A FILTER PRESS SCREW DRIVE. THE SOCKET SLIPPED OUT OF THE NUT AND THE EE FELL BACKWARDS. HIS L EFT ARM STRUCK A HANDRAIL AND HE RECEIVED A 1"" LONG LACERATION THAT REQUIRED THREE SUTURES TO CLOSE MAKING THIS A RECORDABLE INJURY. NO LOST TIME RESTRICTIONS.