News FAA chief defends safety certification process of Boeing 737 Max 8 planes involved in two crashes March 27, 2019March 27, 2019 Ledyard King, USA TODAY Comments Off on FAA chief defends safety certification process of Boeing 737 Max 8 planes involved in two crashes FAA chief defends the system used to certify the safety of Boeing's 737 Max 8 airplanes in wake of two deadly plane crashes abroad.