Posted Date: 16/11/2018
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Indonesian Lion Air Crash Survey Anti stall system or head down.

Indonesian Lion Air Crash Survey: Anti-stall system or head down

Original title: Lion Air Crash Survey: Anti-stall system or the head of the aircraft is facing down, Boeing does not inform the risk

According to various sources, the Indonesian Lion Air, which caused 189 deaths at the end of last month, was difficult to relate to the new automatic flight control system introduced on the Boeing 737. Boeing failed to inform the airlines of the potential danger of the system in advance.

At 6:20 local time on October 29, a Malaysian Lion Airlines passenger plane took off from Jakarta and went to Penang, the capital of Bangka Belitung Province. After 13 minutes of take-off, the passenger plane lost contact with the ground and was confirmed to have fallen into the sea of ??Java within 15 kilometers from the northeast coast of Jakarta.

According to Flightradar 24, the crash aircraft registration number PK-LQP, model Boeing 737MAX 8, is the first flight on July 30, 2018, and the new aircraft delivered on August 13. The crash was also the first major accident in the 737MAX (the latest model of the 737 family).

According to CNN's November 14 report, Lion Air Operations Director Zwingli Silalahi said on Wednesday that the new anti-stall system of the Boeing 737 MAX will automatically be activated under certain circumstances. Triggering the response, such as letting the head of the plane face down, may be one of the reasons why the plane crashed into the sea.

The Boeing 737MAX 8 manual we did not mention this, the pilot has never received training for this particular situation," said Zwingley, if the air crash investigation team (by the Indonesian National Transportation Safety Board, the United States The Transportation Safety Board and the Boeing Tripartite) ultimately believe that the pilot will receive additional training and the Lion Air pilot will receive the training.

Reuters reported on the 12th that the Boeing 737MAX model recently installed a tail-rotation protection system (anti-stall), but the relevant flight manual did not mention this system at all, which was considered by the safety experts of the air crash investigation team and the aircraft. Related to the wreck. Indonesian air crash investigators have called for more training for pilots driving the Boeing 737MAX.

Based on information recovered from the crashed aircraft data logger, the Federal Aviation Administration (FAA) issued an emergency order on Tuesday to warn pilots that even in manual flight mode, the anti-stall system on the Boeing 737MAX could cause the aircraft to drop sharply for up to 10 seconds. It is difficult for the pilot to control the aircraft during this time. Even if the pilot manually pulls up the nose, the nose will automatically repeat the lowering process after 5 seconds. The regulator also said that they are working with Boeing to assess whether to make further changes to the software design of the 737.

Lion Air Crash Survey Anti stall system or the head of the aircraft is facing down Boeing does not inform the risk.


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