Crashed in Indonesia Boeing 737 on the eve of the saved who happened to be in the cockpit, the third pilot. It is time to recognize the problem in the management and suggested how to disable a dangerous feature in the management.
Us media dig up all the new details that shed light on two of the crash Boeing 737 Max 8 that caused the crisis in the global civil aviation and led to the rejection of the use of these aircraft in most countries. These events followed the recent disaster of the liner of the airline Ethiopian Airlines. On Board were 149 passengers and eight crew members, they all died.
Some countries, including Russia, decided to close the airspace for aircraft Boeing 737 MAX.
The attention of experts, investigators, and civil aviation authorities in different countries have drawn the similarity of the last crash with the crash such as the latest aircraft Indonesian airline Lion Air October 29, 2018. He fell in the Java sea after 13 minutes after takeoff.
Decrypting data from the recorders showed that flight, the Indonesian crew of more than twenty times prevented the lowering of the nose of the plane, which caused the automatic system installed on this new type of aircraft. We are talking about the system of MCAS (maneuvering characteristics augmentation system). In earlier versions of its Boeing aircraft it is not installed, and that it is now the aircraft of MAX Corporation was notified by the airline only after the tragedy in Indonesia.
Previously it was known that the plane that crashed in the Java sea were similar problems with the management the day before the fateful flight, but then another crew managed to cope with the situation, to complete the flight from Bali to Jakarta and report malfunctions to the ground.
However, new details of the incident before the accident indicate that the collapse could have happened the day before, and the death of liner saved only luck. More precisely – not part of the crew, a professional pilot,
which by happy coincidence was flying in the cockpit, sitting in the jump seat.
Deadhead – the so-called aviation slang of the passengers who for any reasons does not pay for flights, or crew member flying as a passenger in the cabin of Liba in the cockpit when you want to send them to another airport.
When the crew encountered difficulties in the management of the pilot to recognize the problem and told the commander how to disable the ill-fated system MCAS and thus save the plane, found out by Bloomberg, according to two sources familiar with the investigation of the Indonesian disaster.
At the right time he suggested to disable the electric motor that drives the stabilizer of the plane that helped to cope with uncontrollable dive, caused by the MCAS system.
In the company of Lion Air refused to confirm or deny this information. “All data and information that we have on the flight and the plane, we handed over to the Committee. We are unable at this stage to provide further comments in light of the ongoing investigation of the incident,” said a company representative.
As you know, a day later the same plane, under the control of the other pilots because of a similar failure crashed into the sea. On Board were 189 people, none of them survived.
The new circumstances of the crash not happened offer new ways to look at how informed one of the pilots of the 737 Max was able to cope with the system of MCAS, and to avoid the crash, while others could not find a solution to cope with it, and their planes crashed.
By the way, the presence in the cockpit third pilot in the preliminary report of the National Committee for safety transportation of Indonesia, released 28 November, was not mentioned. It was pointed out several faults this aircraft on a previous flight and that a proper repair it was not.
Today, the system behavior MCAS capable in failure of the sensor of the angle of attack to destroy the plane, and certification of the Boeing 737 Max 8 in the United States riveted the attention of investigators.
With criticism of this system has previously made known in the aviation circle, the pilot of the Boeing 737, blogger Denis Okány. However, according to him, the disconnection of the motor actuator of the stabilizer is a mandatory action that must apply to the pilots, when they feel that the stabilizer of the airplane “runs away”. “If I at manual piloting suddenly starts to “run away” stabilizer, and continues to do so over and over again after I click on the wheel to return it back, then the options can not be is a situation for which there is an emergency RUNAWAY STABILIZER checklist — he wrote in the autumn in his blog. —
Should I disconnect the motor to continue to drive the stabilizer mechanically.
Is the act of memory, every pilot of the Boeing 737 should know by heart as the actions themselves, and the conditions for the beginning of their execution.”
Last week, the civil aviation authority, the US promised to fix the function of MCAS so that it is not activated in a normal situation. As a consequence of the fact, time, interested in the American firm, which produced the ill-fated sensors of angle of attack, which are installed on both sides of the aircraft, wrecked.