EMPLOYEE WAS ATTEMPTING TO REMOVE METAL COUPLER FROM A 15' LENGTH OF 6"" FLEX HOSE. HE WAS HOLDING HOSE WITH ONE HAND AND PULLING ON COUPLER WITHTHE OTHER. HIS HAND SLIPPED OFF OFF THE COUPLING AND THE HOSE SWUNG BACK AND HIT HIM ON THE BRIDGE OF THE NOSE. HE WAS DIAGNOSED WITH A BROKEN NOSE, WILL RETURN TO WORK THE NEXT SHIFT.