What is prohibited under icing conditions according to MAGGIE14LR limitations?

Under MAGGIE14LR limitations, aerobatic flight is prohibited in icing conditions because it can lead to increased risk and loss of control. Icing can affect the aerodynamic performance of the helicopter, making it more susceptible to stalling and losing lift during maneuvers that typically require precise control. In the event of icing, the added stress and complexity of aerobatic maneuvers can exacerbate these issues and result in dangerous situations.

The other options deal with flight conditions and altitudes but do not have the same direct impact on control and performance as aerobatic maneuvers do in the presence of ice. Therefore, the prohibition specifically addresses the heightened risk associated with aerobatics in inherently unstable situations caused by ice accumulation.