Runway overrun involving aircraft on wet runway

No fatalities • Miyazaki, Japan • Landing (descent or approach)

An aircraft overran the runway during landing due to insufficient stopping distance, resulting in structural damage but no injuries.

What happened

During the landing phase of the flight, the aircraft failed to stop within the boundaries of the runway. The runway surface was wet at the time of the incident, which contributed to a loss of braking effectiveness. As the aircraft continued past the end of the paved surface, it experienced a separation of the undercarriage. The movement ceased approximately 132 meters beyond the runway threshold.

Despite the significant impact and the subsequent write-off of the aircraft, all 53 occupants were able to evacuate the plane without sustaining any injuries.

Findings

Investigations into the incident identified that the crew utilized an incorrect approach configuration. This error resulted in the aircraft touching down too far down the runway, which significantly decreased the available distance for deceleration. Additionally, the presence of water on the runway led to aquaplaning, further preventing the aircraft from stopping before exiting the runway.

Probable cause

The crew's improper approach configuration led to a long touchdown on a wet runway, resulting in aquaplaning and an overrun.

Frequently asked questions

What happened in the 1969-10-20 NAMC YS-11 accident near Miyazaki, Japan?

An aircraft overran the runway during landing due to insufficient stopping distance, resulting in structural damage but no injuries.

Were there any fatalities in the 1969-10-20 NAMC YS-11 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 1969-10-20 involved a NAMC YS-11, registration JA8708, operated by All Nippon Airways, at Miyazaki, Japan.

What was the probable cause of the accident?

The crew's improper approach configuration led to a long touchdown on a wet runway, resulting in aquaplaning and an overrun.

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