Part 77: Kazakhstan

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This plane crash takes us to the Asian country of Kazakhstan, which is located next to the following countries: Russia, China, Kyrgyzstan, Uzbekistan and Turkmenistan.

WARNINGS OF A PLANE CRASH

Pictured above is a similar type of aircraft involved in this crash

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Pictured above is a similar type of aircraft involved in this crash.

Aeroflot Flight 4225 was a Tupolev Tu-154B-2 on a scheduled domestic passenger flight from Alma-Ata Airport (now Almaty, IATA: ALA, ICAO: UAAA) to Simferopol Airport (IATA: SIP, ICAO: UKFF/URFF) on the 8th of July 1980. The aircraft had reached an altitude of no more than 500 feet when the airspeed suddenly dropped because of thermal currents it encountered during the climb out. This caused the airplane to stall less than 5 kilometres (3.1 mi; 2.7 nmi) from the airport, crash and catch fire, killing all 156 passengers and 10 crew on board. To date, it remains the deadliest aviation accident in Kazakhstan. At the time, the crash was the deadliest involving a Tupolev Tu-154 until Aeroflot Flight 3352 (Crashed due to colliding with maintenance equipment on the runway) crashed in 1984, killing 178 people.

At the time of the accident, Alma-Ata was experiencing a heat wave. It was around 00:39am and Flight 4225 took off from Alma-Ata Airport in Soviet Kazakhstan. Only a few seconds after take off, the flight reached 500 feet (150 m) when the plane reached a zone of hot air and was caught in a downdraft. The Tupolev stalled, plummeted nose down into a farm near the suburbs of Alma-Ata and slid into a ravine, caught fire and disintegrated, killing everyone on board instantly.

The Soviet aviation board concluded that the crash was caused by windshear which took place while the aircraft was near its maximum takeoff weight for the local conditions which included mountains.

The summary of the crash was Microburst- induced wind shear, loss of airspeed due to thermal currents causing a stall.

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