Narrative:

My instructor took me out to practice s-turns at 1000 feet. During a demonstration turn to the right; I spotted an aircraft to our left at the same altitude with 1000 feet horizontal separation. The other aircraft was on a heading almost perpendicular to us. We were located at his 1 o'clock. My CFI made a couple quick calls on the radio to aircraft Y headed straight for us; before it became necessary for him to take evasive action. We lost altitude to avoid; looked behind us to spot aircraft Y and watched him pull a severely steep bank and dive right at us. My CFI continued to lose altitude to avoid a second near miss collision; and aircraft Y tailed us and was lost from view. My CFI continued to make radio calls to aircraft Y on different frequencies with no identified response except for a loud 'yeeehawww'. Due to the extremely low altitude and dangerous nature of the pilot behind us; we were unable to do clearing turns or anything other than straight and level until we landed nearby. We parked and watched the skies for 15 minutes with no sign of him. Luckily; my CFI was extremely cool-headed and capable or this situation might have had a much different ending. Unfortunately; we didn't get the north number of aircraft Y.

Google
 

Original NASA ASRS Text

Title: Tecnam P92 Eaglet student pilot reported evasive action was required to avoid another aircraft making intentional aggressive maneuvers.

Narrative: My instructor took me out to practice S-Turns at 1000 feet. During a demonstration turn to the right; I spotted an aircraft to our left at the same altitude with 1000 feet horizontal separation. The other aircraft was on a heading almost perpendicular to us. We were located at his 1 o'clock. My CFI made a couple quick calls on the radio to Aircraft Y headed straight for us; before it became necessary for him to take evasive action. We lost altitude to avoid; looked behind us to spot Aircraft Y and watched him pull a severely steep bank and dive right at us. My CFI continued to lose altitude to avoid a second near miss collision; and Aircraft Y tailed us and was lost from view. My CFI continued to make radio calls to Aircraft Y on different frequencies with no identified response except for a loud 'YEEEHAWWW'. Due to the extremely low altitude and dangerous nature of the pilot behind us; we were unable to do clearing turns or anything other than straight and level until we landed nearby. We parked and watched the skies for 15 minutes with no sign of him. Luckily; my CFI was extremely cool-headed and capable or this situation might have had a much different ending. Unfortunately; we didn't get the N number of Aircraft Y.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.