• Regulators knew there was high risk after first 737 Max crash, The Wall Street Journal says.
  • The FAA decided it would be enough to inform pilots of the possible hazard, the newspaper reports.
  • More than 500 of Boeing's 737 Max planes have been grounded since mid-March.
A Boeing 737 MAX 8 airplane

Previously unreported analysis by the Federal Aviation Administration of the first Boeing Max crash suggests it "didn't take that much" for a sensor to malfunction and that a similar disaster  was possible.

Just over five months after that Lion Air crash in Indonesia, Ethiopian Airlines Flight 302 crashed in March, leading to the worldwide grounding of all 737 Max aircraft. The two crashes killed 346 people.