When an aircraft is at a stalled AOA, what condition can potentially lead to a spin?

When an aircraft is at a stalled angle of attack (AOA), specific conditions can exacerbate the stall and lead to a more severe aerodynamic condition known as a spin. The correct condition is when the aircraft is yawing and rolling simultaneously.

In this situation, the aircraft may experience an asymmetrical stall where one wing is more stalled than the other. This differential in lift and drag between the wings can create a yawing motion towards the more stalled wing. If the pilot does not appropriately counteract this yawing motion with coordinated aileron and rudder inputs, the aircraft can enter a spin, characterized by a rapid and uncontrolled rotation around the vertical axis.

The other conditions mentioned are less likely to directly lead to a spin from a stalled AOA. Maintaining level flight does not contribute to spinning if adequate control inputs are maintained. A rapid descent might not induce a spin unless accompanied by other factors, and power-off conditions alone do not inherently cause a spin; it’s the interaction of control inputs and aircraft attitude that plays a crucial role in this situation.