At approximately 0100hrs on 24th February 2024, Hoist was preparing for washing down after experiencing a tight spot at 844m. Circulation assembly made up of FOSV, circulation head, 2” swivel, and a 2” wash-down hose was assembled at V –the door and attached to the tubing string. The assembly was then picked up with the elevator and attempted to make up the connection with the power tong. Upon rotating, the FOSV backed off from the string at an approximate height of 10m and the entire assembly, suspended on the Kelly hose swung out of the Rig floor. On its reentry to the hoist floor, it struck on the handrails and floor man from behind. Floorman sustained abrasions over the back from the base of the neck, first aid was administered by Rima clinic Doctor and sent to Nizwa Hospital after being referred by Haima Hospital.