Failure to guide pilots and drawbacks in MCAS software design could be the two mistakes that led to Boeing's plane crash.
A segment of Ethiopian airlines in the field. Photo: AFP.
The crash of the Ethiopian plane on March 10 killed 157 people and the air lion tragedy at the end of October last year in Indonesia caused 189 deaths to investigate the 737 Max 8 aircraft. Boeing, when the two planes were in the same expression before the accident.
In the case of Ethiopia Airlines, only three minutes after take-off, the plane shows signs of increase, unusual descent, speed beyond the safety limit and the pilot must request an emergency landing. In the case of Leon Ayer, on the last 12-minute journey, the first plane drops 20 times and the captain also ask for emergency appeal.
greed AtlanticThe Boeing 737 Max has a different control feature than previous models 737 because its engine is positioned high on the wing and rising forward. This change in position makes the plane "pick up" during the flight, which puts the plane at risk. Flight Control Control System (MCAS) was added by Boeing at 737 Max to resolve the situation by automatically controlling the plane to tilt its tip when the sensor detects the risk of failure.
The most common hypothesis for the downfall of the Leon Air is a broken sensor that caused the MCAS to misinform and control the aircraft for continuous landing until it fell into the sea, despite attempts to control the pilot. The question after the accident is whether the Lion pilots can pass exactly how MCAS is running or how to turn off the system. Now, with an Ethiopian plane crash, the same question reappeared.
"The first is that the MCAS system relies only on a single data source from the angle sensor to provide an automatic matching option without unnecessary sensors or comparative data," said Wally McGinn, a former Air Force pilot and flight instructor. Second, Boeing did not prepare pilots how to handle the MCAS system when they believed there was a problem.
According to Thanh, with any inexperienced cargo manager, disconnecting the MCAS system to regain control of the aircraft is a very simple operation to complete their ability to perform. "It is certainly easier to deal with engine failure or loss of a hydraulic system," he wrote.
However, when the plane unexpectedly craved his nose and the pilot did not know well about the MCAS and did not understand the reason, the pressure on them was great. When a series of warning lights flared and the sirens sounded, the less experienced pilots fell easily into panic and panic. Therefore, training, piloting on new systems as well as how to handle situations is the minimum that airlines can do.
"As far as I'm concerned, from a pilot's point of view, we do not have to ban the flight of the entire fleet, but just do not allow all pilots to control this level until they're trained." A full guide on MCAS, "Magathan shares.
So far, 737 Max 8 has been banned from flying around the world Boeing, the famous aircraft manufacturer for safety and reliability, will suffer huge losses. Shares in Boeing fell 12% a few days after the plane crashed in Ethiopia, causing the company's capitalization to be over $ 30 billion.
The Max 737 production line is still operating, but the American group has announced that it will stop supplying planes to passengers until an investigation into the results of the Ethiopian plane.