Yahoo TV

At a hearing before lawmakers, Pierson drew a link between faulty Angle of Attack sensors in two recent 737 MAX crashes that killed 346 people and what he called a “chaotic and alarming state” inside Boeing’s factory that undermined quality and safety.

“It is alarming that these sensors failed on multiple flights mere months after the airplanes were manufactured in a factory experiencing frequent wiring problems and functional test issues,” Pierson said.

737 MAX planes have been grounded after an Ethiopian Airlines aircraft fatally crashed earlier this year, just months after the crash of a Lion Air 737 MAX.

The FAA said on Wednesday it was investigating production issues at Boeing Co’s 737 MAX factory.