The owners of a Container vessel consulted FN Diving regarding heavy vibrations of the propeller. FN's team attended the vessel for an underwater inspection while offloading in Amsterdam port, and the underwater inspection revealed two damaged and two bent propeller blades due to ice damage on a 5200MM Propeller. In a normal scenario the blades would be cold straightened however the damaged tip on the opposite blade made this impossible. To assure a minimum delay for the vessel, the decision was made to crop the damage in a way maintaining the propellers hydro-dynamic requirements.