Incident Details
During a planned full-stop landing, the pilot first overflew the 2,000-foot runway to check wind conditions. Observing that the wind socks were hanging limp indicating no wind, the pilot initiated an approach to runway 18. On final approach, the pilot realized the aircraft was "coming in a little high" and performed a slip to lose altitude. Crossing the runway threshold, the ground speed was "higher than normal," necessitating excessive braking to stop before the runway's far end.
While braking, as the aircraft passed over a dip in the runway surface, it nosed over onto its back.
Pilot Account
According to the pilot, a slight tailwind seemed to develop during the final approach.
Runway Description
The approach to runway 18 is described as a "blind approach" that follows the narrow Selway River Canyon. The first 400 feet of the runway are "very rough." The Idaho Airport Facility Directory states that "inexperienced pilots" should use this field for emergencies only.