NASA ASRS Callback 503 - Instructor Insight, Dec. 2021

I was watching from the ground near the hangars on the north side of Runway XX. My student had completed two successful patterns to full stops. On his third final approach, he appeared to be on a normal descent until approximately 100 to 50 feet AGL. The aircraft then appeared to increase descent toward the runway. He pulled the aircraft to level flight just before the aircraft touched down. The aircraft touched and bounced back into the air...

Read the full story at: https://asrs.arc.nasa.gov/publications/callback/cb_503.html