On Sunday, an Ethiopian Airlines jet crashed, killing everyone on board.  

127 people (all passengers) were just minutes into the flight from Addis Ababa on Sunday morning when the Boeing 737 MAX 8 crashed.  

There is no evidence that leads to what caused the calamity, the only clue is the flight’s relationship with the Lion Air flight that had also went down in October; both flights were Boeing 737 MAX 8. The new model was first flown two years ago. A CNN aviation analyst and former Inspector General of the U.S. Transportation Department says it’s “highly suspicious . . . Here we have a brand-new aircraft that’s gone down twice in a year. That rings alarm bells in the aviation industry, because that just doesn’t happen.”  

A new safety system in the MAX 8 plane known as the Maneuvering Characteristics Augmentation System (MCAS) was installed to automatically pull the plane’s nose down if data suggest it is at risk.  

In October’s Lion Air incident, the system was responding to incorrect data which indicated that the noise was titled higher than it actually was.  

When the system began to pull the nose down, the pilots partook in an ineffective fight against it. Boeing argued, saying that the pilots should have turned the system off once they realized it was in operation.  

Both flights were operated by airline with strong safety records. The Lion Air flight went down 13 minutes after takeoff while the Ethiopian flight went down after only six minutes.