3 fatalities

Pilot Alcohol Impairment Led to Uncontrolled Descent and Crash near Milo, Oklahoma (N317K)

Milo, United States of AmericaFlight

On October 21, 1971, a Beechcraft 80 Queen Air (registration N317K) operated by Labina was involved in an aviation accident near Milo, United States of America in flight. 3 people were killed. Investigators recorded the probable cause as: Uncontrolled descent following physical impairment of the pilot. The following factors were reported: - Spatial disorientation, - Alcoholic impairment of efficiency and judgment, - Overload failure, - Pilot blood alcohol level 1,77 ‰ - Area near total… This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-06-12Data APIEditorial standards

While cruising at night over Oklahoma, a pilot lost control, leading to aircraft disintegration and crash near Milo. All three occupants were killed. Probable cause: physical impairment due to alcohol.

The Accident

While cruising at night over the State of Oklahoma, the pilot lost control of the airplane. The airplane entered a dive, and during the descent, it disintegrated. The wreckage eventually crashed in an open field located near Milo, Oklahoma. All three occupants were killed.

Investigation

Investigators determined that the pilot had a blood alcohol level of 1.77‰. The area near the accident site was characterized by near total darkness. Overload failure was also reported.

Probable Cause

The official probable cause was an uncontrolled descent following physical impairment of the pilot. The following factors were reported:

  • Spatial disorientation
  • Alcoholic impairment of efficiency and judgment
  • Overload failure
  • Pilot blood alcohol level 1.77‰
  • Area near total darkness