EARLY MORNING DARKNESS AND DEW CONDENSATION. EE WAS EXITING LOADER TO PICK UP PERSONAL RADIO AT EE DAY ROOM. HE STEPPED OUT ONTO DECK TURNED TO DESCEND LADDER & SLIPPED ON OILY GRIME SLID OFF LADDER HITTING LEG, LOST GRIP ON HAND RAILS AND FELL TO GROUND. LANDED ON LEFT SIDE CAUSING AN INJURY TO SHOULDER.