The document summarizes a project carried out by Technomak to install a deck extension on an offshore oil platform for Maersk Oil Qatar. Technomak performed engineering studies including a feasibility study, installation engineering, and a task risk assessment. They supervised the load-out and conducted an offshore trial lift and dynamic positioning test before performing the final installation in a safe and controlled manner. Lessons learned included the importance of site surveys, identifying hazards, competent personnel, and safety measures like tag lines during offshore lifts.