Overview
A pilot conducting agricultural spraying operations experienced a sudden loss of engine power while lining up for the second pass over a field. The pilot reported that after making one pass over the intended area, the engine shook fiercely and locked down as he set up for the next pass. He performed a forced landing to the field.
Accident Sequence
During the landing roll, the airplane impacted a terrace, causing it to become airborne again. The aircraft then touched down a short distance away and came to a stop. The landing gear separated from the airframe during the terrace impact, and the fuselage sustained structural damage.
Engine Examination
A postcrash examination of the engine conducted by the operator revealed that the loss of engine power was attributed to the failure of the number 5 and number 6 connecting rods, which had penetrated the engine case. No other factors were reported in the operator's findings.