Accident Details
An airplane departed Marble Canyon Airport, Marble Canyon, Arizona, to pick up passengers at the Grand Canyon Bar Ten Airstrip (1Z1) for a 14 CFR 135 flight. Upon arrival at 1Z1, the pilot flew over the single dirt strip runway at about 20 ft above ground level (AGL) heading in a southerly direction to check the runway for livestock or potholes.
When the airplane reached the south end of the runway, the pilot executed a right 90-degree climbing turn to about 400 ft AGL, followed by a left descending 270-degree turn. During the left turn, the airplane stalled and collided with the ground.
Ground witnesses confirmed the pilot's account of the accident. The pilot further stated that the airplane did not experience any engine difficulties.