What happened
The aircraft impacted the upper edge of a glacier before continuing its trajectory toward the ground below. Evidence at the scene showed distinct marks along the top edge of the ice formation, indicating that the airplane struck this point first. After hitting the glacier's crest, the plane traveled approximately 150 feet beyond the vertical face of the ice.
Upon leaving the glacier, the left wing made contact with the ground. The aircraft then came to a stop in an orientation that was roughly perpendicular to its original direction of travel, resting near the base of the glacier.
The investigation
A thorough examination of the wreckage was conducted at the site of the crash. Investigators looked for any signs of mechanical failure or irregularities that might have contributed to the accident. The inspection focused on the airframe and systems to determine if pre-impact conditions played a role in the event.