What can indicate ice accumulation on an aircraft?

The presence of ice accumulation on an aircraft can be indicated by visual signs such as frost or uneven weight distribution. When ice forms on the wings, tail, or other parts of the aircraft, it can lead to a noticeable change in the appearance of the surfaces. Frost is a direct visual cue that ice has accumulated. Moreover, ice can alter the aircraft's weight distribution, which may result in uneven weight that can affect physics during flight, such as lift and drag. These visual indicators provide crucial information that allows pilots and ground crews to assess whether de-icing measures are necessary before takeoff.