What is the Minimum Safe Altitude (MSA) defined as "anywhere"?

The definition of Minimum Safe Altitude (MSA) is best characterized as an altitude allowing a safe landing without undue hazard if power is lost. This altitude provides pilots with a safety margin when flying in a variety of conditions and environments, especially during emergency situations such as engine failure. The MSA ensures that the aircraft remains at a height above terrain and obstacles, allowing the pilot to navigate safely and make a controlled landing if necessary.

This definition emphasizes the aircraft's capability to glide to a safe landing zone, highlighting the necessity for pilots to maintain awareness of terrain features and hinderances. Understanding MSA is crucial for flight planning, particularly in areas with varied topography or potential obstacles.

In contrast, while the other options may contain elements related to altitude regulations and safety, they do not accurately define Minimum Safe Altitude. The concept of requiring a clearance, maintaining altitudes during cruise, or establishing flight levels serves different purposes in aviation operations and safety protocols, and do not capture the essence of the MSA as it pertains to emergency landings and avoidance of hazards.