Upon reaching the fix for an MCA, what should a pilot do?

When a pilot reaches the fix for a Minimum Crossing Altitude (MCA), they should be at the new altitude that is specified. The MCA indicates the lowest altitude at which aircraft must cross a specified point, often due to terrain clearance or airspace restrictions. Arriving at this fix at the designated altitude ensures compliance with the regulation designed to maintain safe vertical separation from obstacles or other airspace reservations.

Being at the new altitude is critical for safety and adherence to IFR procedures. It ensures that the pilot is appropriately positioned for the next segment of the flight plan and maintains clearances over terrain or obstacles that may be present in the airspace. This practice is a fundamental aspect of flying in compliance with IFR regulations and is crucial in maintaining safety in more complicated airspace environments.