Incident Details
A commercial certificated pilot was taxiing a tundra tire-equipped airplane along the edge of a remote river in preparation for takeoff. The gravel area being used had several tree stumps along the river bank. During taxi, the right main landing gear tire entered a small, soft depression, causing the right wing to dip downward and strike a tree stump.
Damage Assessment
The impact with the tree stump resulted in damage to the leading edge and the rear spar of the right wing.
Pilot Statement
The pilot reported that while taxiing, the right main landing gear tire entered a small, soft depression, leading to the wing dipping and striking the stump.