The commercial pilot, the sole occupant aboard, was not injured. Visual meteorological conditions prevailed, and no flight plan had been filed for the aerial application flight being conducted under Title 14 CFR Part 137. The flight originated at Aztec, New Mexico, approximately 1230.
Preliminary information indicates the engine lost power due to oil starvation.
A forced landing ensued and when the wheels contacted the ground, the airplane nosed over. The pilot reported that the oil dipstick was not secured.