Flight Details
The accident flight was the first flight of the day. The pilot was attempting to depart with full fuel tanks and the hopper containing approximately 425 gallons of chemical. After starting the engine, the pilot cycled the propeller control one time and taxied to the approach end of the runway.
Takeoff Attempt
The pilot reportedly lowered 1 notch of flaps and applied power, noting the maximum torque achieved was 1,650 foot-pounds. The upper torque limit for the airplane/engine combination was 1,795 foot-pounds. During the takeoff roll, the pilot noted the airplane was "dragging a little bit" and observed the torque decrease to 1,600 foot-pounds.
In-Flight Actions
The flight continued, and the pilot reportedly attempted to dump the load in the hopper but was unable to move the handle. He continued the takeoff, and the airplane became airborne, settled onto a road, and collided with trees in an orange grove past the departure end of the runway.
Observations and Investigation
Another pilot for the operator reported that when the airplane went past his position, approximately 100 feet before the departure end of the runway, he did not recall seeing any flaps extended. According to the operator, postaccident the hopper dump valve tested satisfactory, and the flap actuator was measured and found to indicate between 0 and 10 degrees of flaps extended. The airplane flight manual indicates that with the flight conditions experienced, the flaps should be extended 10 degrees. Examination of the engine and engine components at the engine manufacturer's facility revealed no evidence of preimpact failure or malfunction.