Aircraft Sinks in Cooks Bay After Striking Boat Wake

Casualties unknown • CA

A pilot lost control of an aircraft during a water takeoff in Cooks Bay after the plane struck a large boat wake, resulting in several injuries and the loss of the aircraft.

What happened

While attempting a water takeoff from Cooks Bay, a shallow area of Lake Simcoe, an aircraft struck the wake of a large vessel while accelerating on the step. The impact caused the aircraft to bounce across the water multiple times. With each successive bounce, the aircraft's nose-down attitude became increasingly steep. The force of these impacts caused significant damage to the aircraft's nose section.

Following the impacts, the aircraft's nose began taking on water. Although the pilot attempted to tow the aircraft toward the shore, the vessel eventually sank. The flight involved the pilot and two passengers. One passenger sustained serious injuries, another suffered minor injuries, and the pilot received treatment for internal bruising. All occupants were wearing life jackets, which were available on board.

The investigation

Investigators examined the pilot's recent flight history and found that the pilot had only completed two flights in the six months prior to the accident. One of these previous flights included a water takeoff and landing at the same location, but the accident occurred during the pilot's third attempt in that period.

Furthermore, the investigation looked into the regulatory requirements for carrying passengers. Under Air Navigation Order (ANO), Series IV, No. 2, pilots carrying passengers must have completed at least five take-offs and landings in the same category and class of aircraft within the preceding six months. The investigation established that the pilot did not meet these requirements.

Additionally, the lack of safety equipment was noted; the aircraft was not equipped with shoulder harnesses. Investigators determined that the presence of such harnesses might have mitigated the severity of the injuries sustained by the passengers.

Probable cause

The pilot was unable to maintain a normal takeoff attitude after the aircraft struck a large boat wake, leading to a loss of control and a nose-down impact with the water.

Frequently asked questions

What happened in the 1994-06-05 Cooks Bay, Ontario accident near CA?

A pilot lost control of an aircraft during a water takeoff in Cooks Bay after the plane struck a large boat wake, resulting in several injuries and the loss of the aircraft.

What aircraft was involved and where did it happen?

The accident on 1994-06-05 involved a Cooks Bay, Ontario, operated by Consolidated Aeronautics Inc, LA-4-200 Lake Buccaneer, C-GOCU, at CA.

What was the probable cause of the accident?

The pilot was unable to maintain a normal takeoff attitude after the aircraft struck a large boat wake, leading to a loss of control and a nose-down impact with the water.

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