At approximately 19:00hrs on 16th May, Rig crew members were in process of Rigging up. The Driller and Derrick Man were on the rig carrier, pulling the guy lines for clearing away from the mast prior to raising the mast. Derrick man was holding a guy line near the draw works which was stuck at the Hydo-matic coupling side and at the same time it was pulled rapidly by the Driller. The sudden force resulted in hitting the right hand little finger of the Derrick man on the guard of the Hydo-matic coupling of draw-works. Derrick man was taken to the government clinic where X ray revealed fracture.