[ad_1]
An Air Canada Boeing 737 MAX 8 approaching Toronto Pearson International Airport on March 13, 2019, before the entry into force of a global grounding. By Cole Burston (GETTY IMAGES NORTH AMERICA / AFP / File)
Boeing is in the process of finalizing a software update and driver training related to the MCAS anti-stall feature, which are under scrutiny after two 737 Max 8 crashes, said Sunday the CEO of the company.
"Boeing is in the process of finalizing the development of a previously announced software update and a review of the pilot training that will address the behavior of the MCAS flight control law in response to inputs from erroneous sensors, "said Dennis Muilenburg, president and general manager of the American aircraft manufacturer. declaration.
On Friday, two unnamed sources in the industry told AFP that the upgrade should be ready in about 10 days.
Muilenburg's announcement came after the Ethiopian Transport Minister said on Sunday that the black box data recovered from the Ethiopian Airlines aircraft that crashed last week show "obvious similarities" with the Lion Air crash in Indonesia, which involved the same type of aircraft Max 8.
Industry sources have warned that the upgrade to MCAS does not indicate a cause of the crash in Ethiopia, as indicated by Muilenburg's statement.
He added that the modification of the MCAS is in progress "while the investigators continue to work to draw definitive conclusions".
The Maneuvering Enhancement System (MCAS) is an automated safety feature of the 737 Max 8 designed to prevent the aircraft from entering a stall or losing lift.
The plane Lion Air, which crashed in October, killing 189 people, and the aircraft of Ethiopian Airlines, which broke down last Sunday, killing 157 people, were equipped with the system.
Both aircraft experienced steep climbs and descents and fluctuating variable speeds in the same manner before crashing shortly after take-off.
A malfunction of the system was involved in the Lion Air accident.
The 737 Max 8 and 9 have been grounded around the world since the crash of Ethiopia.
MCAS was introduced by Boeing on the 737 Max 8 because its heavier and more fuel-efficient engines have altered the aerodynamic qualities of the full-bodied aircraft and can cause the aircraft to pitch up under certain flight conditions manual.
Angle attack sensors from the aircraft instruct the MCAS to automatically point the nose of the aircraft down if it is likely to come off stall.
According to the flight data recorder, the pilots of Lion Air flight 610 had difficulty controlling the aircraft because the MCAS automated system repeatedly pushed the nose of the aircraft after take-off.
Ethiopian Airlines flight pilots reported similar difficulties before the aircraft plunged into the ground shortly after takeoff.
A preliminary report on the Lion Air accident attributed in part to a faulty attack angle sensor that triggered the MCAS system and automatically forced the aircraft to sting.
After the Indonesian accident, Boeing was criticized for failing to properly inform 737 pilots of the operation of the MCAS or given training on the system.
As a result of this accident, the company issued a bulletin to airlines operating the 737 Max 8, telling pilots how to replace the MCAS system and indicating that it was working on software updates.
[ad_2]
Source link
