Chesley ¡°Sully¡± Sullenberger, who in 2009 landed a US Airways flight safely on the Hudson River in New York, told a congressional panel on Wednesday that pilots of the now-grounded 737 Max should get new simulator training before the plane returns to service.

He also said that the Federal Aviation Administration¡¯s system of certifying new aircraft is not working after two deadly crashes since October killed 346 people: ¡°Our current system of aircraft design and certification has failed us.¡±

Boeing said in May it had completed an update to software, known as MCAS, which would stop erroneous data from triggering an anti-stall system that automatically turned down the noses of the two planes that crashed, despite pilot efforts to stop it.