Engine power loss and forced landing involving twin-engine aircraft

No fatalities • Scottsdale, United States of America • Landing (descent or approach)

A pilot was forced to perform an emergency landing after experiencing a simultaneous power loss in both left engines during a turn on approach.

What happened

During a visual flight rules (VFR) pattern maneuver, the pilot was transitioning from the left base leg to the final approach for landing when the aircraft experienced a sudden loss of power in both left-side engines. In an attempt to manage the situation and maintain directional control of the aircraft type, the pilot reduced power on the remaining right-side engines.

The resulting forced landing led to a ground excursion where the aircraft traversed several ditches and struck small trees. Interestingly, as the aircraft made contact with the ground, the two left engines unexpectedly returned to full power. The pilot, who was the sole occupant of the aircraft, escaped the incident uninjured.

Findings

Official investigations into the event identified several key elements regarding the sequence of the accident:

  • The primary reason for the initial loss of engine power remained undetermined.
  • The aircraft encountered difficult terrain conditions consisting of ditches during the landing roll.
  • The descent and subsequent ground contact involved collisions with stationary objects, specifically small trees.

Probable cause

The specific cause of the simultaneous loss of power in both left engines could not be determined.

Frequently asked questions

What happened in the 1984-04-05 De Havilland DH.114 Heron accident near Scottsdale, United States of America?

A pilot was forced to perform an emergency landing after experiencing a simultaneous power loss in both left engines during a turn on approach.

Were there any fatalities in the 1984-04-05 De Havilland DH.114 Heron accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 1984-04-05 involved a De Havilland DH.114 Heron, registration N81962, operated by Scenic Air Tours, at Scottsdale, United States of America.

What was the probable cause of the accident?

The specific cause of the simultaneous loss of power in both left engines could not be determined.

Loading the flight search…