And should all Boeing 737 Max 8 jetliners be grounded ? The Ethiopian Airlines jet that crashed shortly after takeoff on Sunday, killing all 157 people aboard, is the same make and model as the plane that crashed off Indonesia last year with 189 deaths Officials lost contact with Flight 302, a Boeing 737 Max 8 jetliner flying from Addis Ababa, the Ethiopian capital, to Nairobi, the Kenyan capital, at 8:44 a.m. (1:44 a.m. ET), authorities said. That was about six minutes after the plane took off from Bole International Airport, they said. Tewolde GebreMariam, the airline’s chief executive, said that the captain reported “difficulties” and asked to return to the airport but that then the plane “was lost from the radar — it disappeared.” The Ethiopian Airlines jet had been in service for only four months and had no known technical issues, GebreMariam said. In late October, Lion Air Flight JT610 — also a Boeing 737 Max 8, which had been in service for only 2½ months — crashed into the sea shortly after takeoff from Jakarta, the Indonesian capital. Indonesian authorities said that contact with Flight JT610 was lost after 13 minutes and that the captain reported a “flight control problem.” Pilots flying the same plane a day earlier had experienced a similar problem, authorities said.