Incident Overview
On an unspecified date, an airplane experienced a landing overrun on runway 26 at Mackinac Island Airport, located on Mackinac Island, Michigan. The runway, measuring 3,501 feet in length and 75 feet in width, was dry and asphalt-surfaced. The aircraft impacted poles during the overrun, resulting in substantial damage.
Pilot Report
The pilot stated that during the approach, 20 degrees of flaps were selected on base leg and 40 degrees on final. However, the pilot did not realize that the flaps were not deployed until the aircraft had traveled one-third of the way down the runway, at which point the indicated airspeed was 80 KIAS. The pilot also noted that the airplane touched down approximately halfway along the runway.
Examination and Functional Check
After the incident, examination of the aircraft revealed that the flaps selector and associated indicator were both displaying 0 degrees. A functional check was subsequently conducted by cycling the flaps through settings of 0, 10, 20, and 40 degrees. This check was performed successfully three times, indicating that the flap system operated normally when used correctly.
Damage
The aircraft sustained substantial damage due to impact with poles during the overrun. No further details about the specific damage were provided in the source.
Investigation Status
The incident remains under investigation by the relevant authorities. No probable cause has been stated in the available source.