understand better what was going on in the last seconds before the crash in the Cockpit, the pilots simulated in the Simulator of the flight the Boeing 737 Max 8 of the Indonesian airline Lion Air. The machine was not crashed in the autumn of last year, because the pilots apparently, the new Software System received in the handle. The so-called MCAS is intended to stabilize the 737 Max 8 actually, in certain flight situations. However, in the case of the Lion Air flight has led to a defective Sensor, the opposite happened: The machine went crazy, because the MCAS was no correct data on the angle of attack, so the position of the aircraft in the air stream.
In the case of the test in the Simulator showed that the MCAS was significantly stronger in the control intervention, as the pilots had expected, reports the New York Times, citing two persons in the case of the Tests in the past few days. In the case of the simulated failure of a sensor only had a few seconds the pilot, therefore, to turn the System off. So far, the MCAS is programmed to turn on for ten seconds and then for five seconds, paused it.
switch, which is not more help
the pilots then have the opportunity to bring by means of a switch on the control horn to the nose of the plane upwards again. However, because in the event of the Lion Air flight, the Sensor continues to deliver incorrect data, the MCAS again. At the Moment, the pilots would have been able to disable with two other switches, one Motor, with the aid of the MCAS pushed the nose of the aircraft down. But you didn’t know that apparently. Instead, you should have tried more than two dozen Times with the switch on the control horn, to overcome the MCAS.
Against the threat of a crash, you could align but nothing more. Under the special conditions of the Lion Air flight, as it portrays the “New York Times” had been in the Simulator after three interventions of the MCAS – so after about 40 seconds, and the aircraft no longer controllable.
in the Future, Boeing wool to enter the pilot more room for manoeuvre, Reuters reported citing an Insider, are familiar with the new training. The Software Update to stop the repeated automatic intervention of the MCAS. In addition, the System will do differently in the future with the data from the Sensors Differed significantly from each other, should be disabled the MCAS.
Before the ban on flights for the 737 Max 8 is lifted, is expected to take, according to experts, the next few months. The Update must not only be approved by the Federal aviation Agency FAA, other regulatory authorities have already announced their own tests. This Wednesday, Boeing will introduce the new features for the first time. (Editorial Tamedia)
Created: 26.03.2019, 20:26 PM