MSA

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What is MSA (Minimum Safe Altitude)?

MSA is an aeronautical term that refers to the minimum altitude which must be flown to maintain a safe clearance over the highest obstacle in a particular area. This altitude is calculated taking into account terrain, obstacles, navigation aids and other factors that may affect the safety of the aircraft in flight.

The MSA varies depending on the geographic location and the nature of the terrain, and pilots must always maintain this altitude or higher, especially during critical phases of flight such as takeoff, landing, and ascent or descent over mountainous or hilly terrain.

The purpose of MSA is to ensure the safety of aircraft and passengers in flight, by providing a minimum clearance over potential hazards. In the event of any technical problems or emergencies, a pilot can quickly refer to the MSA chart to determine the lowest altitude that can be safely maintained in the surrounding airspace.

Therefore, understanding and maintaining appropriate MSA for a particular flight is crucial to ensure safety in aviation operations.

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