On December 12, 2005, about 1440 eastern daylight time, a Piper PA-34-200, N56825, registered to Daytona Aircraft Leasing LLC. and operated by Phoenix East Aviation, Inc., as a Title 14 CFR Part 91 instructional flight, experienced an in-flight loss of control during landing at Daytona Beach International Airport, Daytona Beach, FL. Visual meteorological conditions prevailed, and no flight plan was filed. The airplane incurred substantial damage, and neither the student pilot nor the commercial-rated flight instructor were injured. The flight originated from Daytona Beach, Florida, the same day, about 1330. The student pilot stated that during a practice single engine approach the airplane's descent rate was greater then he anticipated, which subsequently caused the airplane to touch down early. He said that the flight instructor, sitting in the right seat, instructed him to execute a go-around, and during the go-around he only advanced the throttle for the right engine, and had that control in his hands. He said the airplane yaw to the left, at which point the flight instructor took control, adding full power, and executed the go-around. The flight instructor stated that the private-rated student was the pilot flying the airplane, and during the touchdown the pilot continued flaring which caused the airplane go become airborne a second time, and at that point he stated "my controls". He said that prior to releasing the controls the student added power to the right engine only causing the left wing tip to strike the runway. He said he continued the go-around, and landed the airplane without further incident.