The work was performed in a restricted work area at height where movement and positioning options were limited, increasing exposure to pinch-point and line-of-fire hazards The hazards associated with the moving pull-down line, sheave, and mast movement were not fully recognized or communicated within the task risk assessment and JSA The worker was not in a safe position and fully clear of the danger zone before the signal was given to hoist the top drive. The approved SOP for the task was not available or properly maintained through the Management of Change (MOC) process, resulting in weaknesses in work planning and hazard control. The required impact gloves were not being used, reducing protection against hand and finger injury hazards