The pilot reported that, while maneuvering through a canyon at low altitude, the left wing struck a power line that he did not see. The airplane subsequently collided with terrain.
The airplane sustained substantial damage to the left wing.
The pilot reported that there were no preimpact mechanical failures or malfunctions that would have precluded normal operation.
The pilot did not submit the National Transportation Safety Board Pilot/Operator Aircraft Accident/Incident Report Form 6120.1.