Aircraft overrun and collision following engine failure during takeoff

No fatalities • Kazan-Borisoglebskoye, Russia • Takeoff (climb)

An aircraft experienced a significant loss of power in one engine during its takeoff roll, resulting in an overrun and collision with an embankment.

What happened

While performing the takeoff roll, the aircraft's second engine suffered a critical failure approximately 650 meters from the start of the runway. Following this loss of power, the pilot attempted to proceed with the takeoff sequence; however, the remaining engine could not provide enough thrust or speed to achieve rotation.

In response to the insufficient performance, the crew aborted the takeoff attempt. Due to the lack of remaining runway length, the aircraft was unable to come to a complete stop before exiting the paved surface. The aircraft subsequently overran the runway and struck an earth mound, which caused significant damage to the cockpit area. All 34 occupants were successfully evacuated from the wreckage, though several individuals sustained injuries during the incident.

Findings

Investigations into the accident determined that the second engine experienced a 90% reduction in power during the takeoff phase. The official conclusion pointed to the captain's decision to continue the takeoff procedure despite having one engine nearly inoperative as a primary factor in the sequence of events.

Probable cause

The pilot's decision to proceed with the takeoff after experiencing a major loss of power in one engine led to insufficient performance for rotation and a subsequent runway overrun.

Frequently asked questions

What happened in the 1974-04-09 Yakovlev Yak-40 accident near Kazan-Borisoglebskoye, Russia?

An aircraft experienced a significant loss of power in one engine during its takeoff roll, resulting in an overrun and collision with an embankment.

Were there any fatalities in the 1974-04-09 Yakovlev Yak-40 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 1974-04-09 involved a Yakovlev Yak-40, registration CCCP-87369, operated by Aeroflot - Russian International Airlines, at Kazan-Borisoglebskoye, Russia.

What was the probable cause of the accident?

The pilot's decision to proceed with the takeoff after experiencing a major loss of power in one engine led to insufficient performance for rotation and a subsequent runway overrun.

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