What is the required action when weather at an alternate airport is below the minimums specified during flight planning?

When weather at an alternate airport falls below the minimums specified during flight planning, the required action is to evaluate and execute the approach according to the current rules. This involves assessing the current weather conditions and approach procedures for the alternate airport, which might include revising the intended approach, considering if the alternate can be utilized safely, and ensuring that the approach meets the requirements for a safe landing under current conditions.

Executing the approach in accordance with the current rules allows pilots to evaluate their options based on updated information retrieved en route, including the latest weather reports and possible changes in approach procedures. Pilots are trained to make decisions based on situational awareness and the ability to adapt to changing conditions, so evaluating and executing an approach meeting current regulations ensures safety as the primary priority.

Other choices may suggest taking actions that could potentially compromise flight safety or violate regulations. Changing to a different alternate might be necessary, but first, the pilot must assess the current conditions. Declaring an emergency is a serious action that would be taken under life-threatening circumstances. Proceeding with scheduled operations without assessing current weather conditions could lead to unsafe situations.