Rules, page 22 wrote:
Some outcomes require you to choose one component from a spacecraft and damage it. When this happens, you must choose an undamaged component and damage it — you cannot damage a damaged component. Supplies and samples do not have a damaged side, so you must choose a different component to receive the damage.*
* If an outcome requires you to damage a component, yet all of the components on board are already damaged (or cannot take damage), the spacecraft is destroyed.