To work on many parts of the Azipod propulsion system, the only way to do it is when the ship is out of the water. During a scheduled drydock, such as this one for Radiance of the Seas, work on the propulsion system is a major item on the "to do" list. It also gives us a chance to see exactly what the units look like. During this drydock they are doing a routine replacement of the thrust bearings, and more unusual, they are also replacing the propellers blades with a new more fuel-efficient design.
