Incident Overview
A flight instructor was conducting a sales demonstration flight for a potential customer, who was serving as the pilot. The instructor reported that the pilot was fully aware that the instructor could assume control of the aircraft at any time by stating "my aircraft."
Flight and Approach
The flight to the destination was uneventful. During the approach, the crew was advised that the wind was from 330 degrees at 10 knots with gusts to 15 knots, and that low-level wind shear was present. They extended the downwind leg and performed a 360-degree turn to lose altitude.
Landing Attempt
On final approach to runway 15, the Precision Approach Path Indicator (PAPI) showed a normal Mooney approach: a descent rate of 400 feet per minute and an indicated airspeed of 90 knots. Due to the tailwind, the aircraft crossed the runway threshold "a little high" and faster than normal.
At about 12 feet above the runway, the pilot raised the aircraft's nose to flare for landing. The airspeed dropped rapidly. The instructor told the pilot to relinquish control and attempted to push the control yoke forward. The pilot interpreted the instructor's control inputs as an attempt to assist with the landing and continued raising the nose. The stall warning horn sounded.
As the pilot held the nose-high attitude, the instructor applied full power "to keep the nose from falling over from the impending stall." The tail struck the runway, causing the airplane to bounce. Subsequently, the propeller struck the runway, stopping the engine.
Aftermath
The airplane coasted off the runway onto a taxiway. No further information about injuries or aircraft damage was provided in the source.