helical stalled flight after a stall in a slip or a skid
requirements
aircraft must be stalled for a spin to occur
both wings are stalled
phases
entry phase
incipient phase
developed phase
K2: What causes a spin and how to identify the entry, incipient, and developed phases of a spin
most likely scenarios
excessive elevator backpressure after an engine failure during climbout
excessive elevator backpressure during base-to-final turn, potentially skidding (too much rudder into the turn) in a fatal effort to correct overshooting
excessive elevator backpressure during engine-out landing