1966-04-09: Lockheed P-3 Orion (152171) — United States Navy - USN — Pacific Ocean, World

11 fatalitiesPacific Ocean, WorldFlight

An aircraft crashed into the Pacific Ocean during a military training mission, resulting in the deaths of all eleven people on board.

What happened

During an active anti-submarine warfare exercise, an aircraft experienced a sudden loss of control while operating over the Pacific Ocean. The incident occurred approximately 187 miles from the coast of San Diego. Following the loss of controllability, the plane impacted the ocean surface, leading to the total destruction of the airframe.

There were 11 fatalities recorded in the accident, with no survivors among the crew or occupants.

Findings

Investigations into the crash determined that the primary factor was a loss of control during the flight phase. This instability was triggered by the disengagement of the autopilot system, though the specific reason why the automation disconnected remains undetermined.

Probable cause

The aircraft experienced a loss of control following the unexpected disengagement of the autopilot system.