20100831044889A

A CFI was the PIC of a discovery flight with two passengers departing from kaid runway 18 on the evening of 31 August 2010. Winds were reported at 240 at 4 knots; OAT of 29 c. the pilot did not make a weight and balance calculation prior to flight. Based on the pilot's estimate of passenger weights, the aircraft was operated at a very high gross weight. (The operator was unable provide a passenger manifest or to provide an accurate record of passsenger weights). The pilot stated that the aircraft's performance with takeoff power set appeared to be normal. The pilot stated that he rotated at approximately 60 mph, however, he also stated that he may have pulled the aircraft off the runway instead of letting the aircraft fly itself off the runway (as specified in the manufacturer's owner's handbook). Shortly after lift off, the pilot stated the aircraft rolled left. As the pilot made control inputs to correct the roll, he felt that the aircraft was not climbing normally and noted that the aircraft then began sinking. The aircraft touched down in a grassy area to the immediate east of runway 18 with takeoff power set. As the aircraft touched down in a nose high attitude, the lower portion of the aft fuselage contacted a frangible runway marker and several runway lights. The pilot then selected idle power and turned on to the adjacent crossing runway (12/30) and taxied back to the kaid ramp. Post flight inspection revealed the aircraft experienced damage to the left stabilator, and the lower surface of the aft fuselage former had significant impact damage.