Accident Sequence
During the takeoff roll, the pilot observed a 'flat spot in the power' as the throttle was advanced. The engine rpm reached 2400 instead of the expected 2500. Despite this anomaly, the pilot decided to continue the takeoff.
After liftoff, during the initial climb, 'the aircraft started to settle.' The pilot assessed that there was 'insufficient remaining runway to attempt to abort.' He then executed a 90-degree left turn, aiming to land on a dirt road.
The airplane touched down beside the road, where it struck 'a piece of concrete debris.' It subsequently came to rest on the road.
Findings
The reason for the loss of engine power could not be determined.