Sequence of Events
After the initial bounce and a right drift off the sealed runway, the pilot did not initiate a go-around. The aircraft floated over the grass fly-over area until, with approximately one quarter of the runway remaining, it bounced again. Only then did the pilot elect to go around.
Go-Around Procedure
Upon commencing the go-around, the pilot did not immediately retract the flaps to the 20-degree position as specified in the aeroplane flight manual. It is likely that this deviation, combined with the upslope of the runway and the heavy load of the aircraft, prevented the aircraft from climbing sufficiently to clear the airfield boundary fence. The aircraft subsequently struck the fence.
After the fence strike, the pilot again did not follow the correct go-around procedure. The pilot raised the flaps to 10 degrees before allowing the aircraft speed to increase and before ensuring all obstacles were cleared. This flap retraction resulted in a loss of lift, which caused the aircraft to descend and impact the canopy of a tree located 225 meters beyond the airfield boundary fence.
Final Descent
The tree impact occurred as a direct consequence of the premature flap retraction, which reduced lift at a critical moment. The investigation noted that the aircraft was heavily loaded and the runway had an upslope, both of which likely compounded the climb performance limitations during the go-around.