1979-12-16: Beechcraft 65 Queen Air (N154F) — A. H. Cowley & Associates — Lexington-Blue Grass, United States of America

7 fatalitiesLexington-Blue Grass, United States of AmericaTakeoff (climb)

An aircraft crashed during its climb from Lexington-Blue Grass Airport following an engine failure caused by ice accumulation in the induction system.

What happened

During a departure from Lexington-Blue Grass Airport, an aircraft encountered severe weather characterized by freezing temperatures and active icing conditions. As the flight was ascending, the induction system became obstructed by ice, resulting in the failure of one engine. This loss of power led to a total loss of control, causing the plane to impact a field and catch fire. The accident resulted in seven fatalities.

Findings

Investigations into the crash identified several contributing elements related to the flight's operation in adverse weather. Significant factors included:

  • The accumulation of ice within the induction system, which led to engine failure.
  • The presence of airframe ice and environmental conditions including sleet and freezing rain.
  • The pilot's decision to operate the aircraft despite known equipment deficiencies.
  • Inadequate use or improper management of anti-icing and de-icing controls.
  • A lack of de-icing equipment on the wings and empennage.
  • Improper handling of powerplant controls during the climb phase.

Probable cause

The pilot's decision to fly in known icing conditions with inadequate de-icing equipment led to induction icing and subsequent engine failure.