Incident Details
An instructor pilot was conducting a night landing demonstration for a student pilot. On touchdown, the aircraft suddenly veered to the right. The instructor believed the student was applying right rudder, but did not intervene by applying left rudder to correct the deviation.
Discovery
The following morning, examination of the aircraft revealed that it had collided with a deer at the moment of touchdown. The right main landing gear had dragged the deer for a distance, which caused the aircraft to veer to the right.
Additional Context
The incident occurred during a routine training flight. The source does not specify the aircraft type, registration, number of engines, date, operator, location, or number of occupants. No information is provided regarding injuries or damage to the aircraft or the deer. Weather conditions and ATC involvement were not mentioned.
Probable Cause
The source does not explicitly state a probable cause. The sequence of events indicates that the instructor failed to override the student's presumed right rudder input after the deer strike, but this is not designated as a causal factor in the source.