before I explain the crash, to make the plane stall, press AG-2. here is the explanation. On 22 August 2006, at 15:04 (Moscow Time), a Tu-154 airliner of Saint Petersburg-based Pulkovo Airlines took off from Anapa Airport in Russia for Pulkovo Airport in Saint Petersburg.Half an hour later, there were thunderstorms in the vicinity of the flight, and the aircraft entered an area of severe turbulence. As a result, at 15:33, the crew requested and was given permission to climb to 39,000 feet (12,000 m). Just before 15:35, they reported to ATC reaching FL 390.At 15:35:02, the crew disengaged the autopilot. Almost immediately, the stall warning sounded and then the flight's angle of attack increased to 46 degrees while its forward airspeed dropped to zero. The flight sent an SOS signal and disappeared from radar contact. It entered a deep stall from which the crew could not recover.[3] Two of the three engines flamed out, and the crew was communicating with ATC during the stall, reporting descending. Inside the cockpit, as the time passed, stress increased, and eventually the crew was very distressed by the situation, especially in the final moment before the crash. At 15:38:29, the flight crashed 45 kilometres (28 mi; 24 nmi) north-west of Donetsk,[3] near the village of Sukha Balka,[2] killing all 170 people on board."At an altitude of 37,000 feet (11,000 m), the aircraft sent three SOS signals, dropped sharply in altitude and sent another SOS at 9,800 feet (3,000 m)," said Anatoli Samoshin, Vice Flight Operations Director at Pulkovo Aviation Enterprise. There were no other communications. The crash was witnessed by a local farmer and a young couple seeking shelter from the rain. They told reporters that they saw the aircraft falling out of the sky and that it burst into flames upon hitting the ground. They could see people in a number of seats that were thrown out of the aircraft on impact, but none showed any signs of life.