On October 31, 1999, a Cessna U206F (registration N902CT) was involved in an aviation accident near Challis, ID. Investigators recorded the probable cause as: Aircraft control was not maintained. The pilot's improper decision to abort the landing and flight into a box canyon were factors. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
An aircraft bounced during landing, applied power, but failed to climb over rising terrain, colliding with the valley floor about one mile into a canyon. No mechanical failure was found.
Event Description
According to a witness, the aircraft approached an airstrip from the west for a landing to the east. During the final approach, the witness heard power fluctuations. The aircraft touched down on the approach end of the airstrip and bounced into the air to an estimated height of 20 feet. The witness then heard the pilot apply corrective power for approximately three to five seconds before full power was applied. The aircraft traveled the length of the airstrip while gaining little altitude, and the witness lost sight of it as it passed beyond trees at the upper end of the airstrip.
The aircraft continued up a narrow valley surrounded by rising terrain. About one mile into the canyon, the aircraft collided with the valley floor in a near vertical attitude.
Investigation Findings
During the post-accident investigation, no evidence of a mechanical failure or malfunction was found. The owner or operator of the aircraft reported that the pilot was aware that landings were to be made to the east and takeoffs to the west. Takeoff to the east was not recommended due to the rapidly rising terrain.