During descent in light rain, what is the maximum wiper speed allowed?

The maximum wiper speed allowed during descent in light rain is 250 knots. This speed limit is specified to ensure that the windshield wipers can effectively clear rain and maintain visibility for the pilots without damaging the wiper blades or the aircraft's windshield. The wipers are designed to operate efficiently at this speed under light rain conditions, helping to ensure safety during descent when pilots must maintain a clear view of their surroundings. Operating above this speed could compromise the effectiveness of the wipers and potentially lead to reduced visibility and safety hazards during the descent phase of flight.