The failure of the anti-icing system was called the probable cause of icing on the S7 liner. This assumption was expressed in an interview with Izvestia by the pilot of civil aviation, the former commander of the aircraft Alexander Romanov on Saturday, December 4.
He also commented on the failure of the onboard autopilot.
“This is a modern spent aircraft, there are no problems. Disabling the autopilot is not some kind of criminal situation, besides, the crew controlled everything. It is normal for the autopilot to fail and shut down. I think that this is not the reason. There was icing, so here it is also not clear why the plane did not cope. The investigation will figure it out, ”said the pilot.
Romanov said that the Airbus A321 has a modified system, which does not cause complaints from the pilots. Additionally, the interlocutor suggested the reasons for the icing.
“Icing happened because we got into a zone of heavy icing. But I don’t think that’s the only problem. We need to understand more thoroughly. The engines are made in such a way that ice must be thrown off them. Therefore, something strange happened here, probably a failure of the anti-icing system, ”he concluded.
On December 2, the S7 airliner flew from Magadan to Novosibirsk, but was forced to land in Irkutsk.
On December 3, Izvestia found out that control problems began after the plane was put into direct autopilot mode. Then the ship began to sway strongly, and its speed began to fluctuate. The system gave a “stall danger” signal, and also notified about icing of the first and second engines. As a result of the buildup, the plane lost 2.7 thousand meters of height. There were 200 passengers on board.
Now a special commission is checking what anti-icing agents were used to treat the board. The actions of the pilots will be evaluated.
According to the source, the cause of the incident was probably a combination of factors. At the same time, it is noted that it was possible to avoid the tragedy precisely thanks to the correct actions of the pilot. If not for the proper response of the crew, the aircraft would have crashed in 10 seconds, the source said.
The record of the pilot’s negotiations with the ground on December 3 appeared at the disposal of Izvestia. On it, the pilot informs the dispatchers of the “severe icing”.
Source: IZ
Jane Stock is a technology author, who has written for 24 Hours World. She writes about the latest in technology news and trends, and is always on the lookout for new and innovative ways to improve his audience’s experience.
