Incident Summary
During an aerial application flight, the aircraft experienced a loss of engine power while the pilot was pulling up and turning after completing the first spray pass. The pilot heard a "pop" sound coincident with the power loss. He was able to clear a slough ahead and executed an off-airport landing in a flooded rice field. Upon touchdown, the aircraft hydroplaned and subsequently ground looped.
Pilot Report
The pilot reported that after the initial spray pass, as he initiated a pull-up and turn, a distinct "pop" was heard, and the engine lost power. He stated that he managed to clear a slough directly in front of the aircraft and then landed in a flooded rice field. The landing resulted in hydroplaning and a ground loop.
Investigation Findings
The investigation into the accident did not determine the reason for the loss of engine power. No contributing factors were identified, and the exact cause of the power loss remains unknown.