What situation should be avoided when approaching the pattern?

Stalls should be avoided when approaching the pattern because they pose a significant safety risk during critical phases of flight. A stall occurs when the aircraft exceeds its critical angle of attack, leading to a loss of lift. During the approach to landing, pilots need to maintain control of the aircraft to ensure a safe descent and landing. Entering a stall while close to the ground reduces the chances of recovering in time, which can lead to a crash.

In the context of approaching the pattern, maintaining a safe airspeed is essential to prevent stalls, especially as pilots typically configure the aircraft for landing during this time. Stalls often require recovery procedures that can be difficult to execute when close to the ground or in a busy landing pattern.

While high-speed turns, overcrowded airspace, and low altitude can also present challenges, stalls specifically involve the loss of aircraft control, making them particularly critical to avoid during this phase of flight.