Incident Description
The pilot reported that winds at the destination airstrip appeared light on the ground and from the north-northwest, based on the windsock. He entered a normal traffic pattern, rolled out on final, and flew at his normal approach speed with full flaps. At approximately 100-120 feet, he encountered windshear. The wind either stopped or abruptly became a tailwind, causing the aircraft to quickly settle. The pilot rapidly applied power but hit the ground before it could take effect.
Witness Account
A witness on the ground near the accident location noticed that the wind was changing directions, sometimes from the northwest, west, and east. The witness observed that about 100 feet above the ground, the airplane appeared to almost stop then drop nearly vertical. He heard the power being added before the airplane struck the ground.
Examination
Examination of the wreckage revealed no anomalies.