The CEO of Boeing has announced that the US aircraft maker will soon release a software update for its troubled 737 MAX jets. The announcement comes after an Ethiopian Airlines Boeing 737 MAX 8 jet went down on March 10, killing 157 people. It was the second fatal air crash in the 737 MAX 8 in less than half a year. At least 45 countries around the world have grounded the 737 MAX 8 aircrafts.