Boeing CEO says the Alaska Airlines blowout was caused by a 'quality escape'

• Dave Calhoun told CNBC that a "quality escape" led to the Alaska Airlines blowout.
• This week he told employees: "We're going to approach this number one acknowledging our mistake."
• Alaska Airlines has canceled all its flights on Boeing 737 Max 9 jets as it awaits revised inspection instructions.

Boeing CEO Dave Calhoun told CNBC on Wednesday that the Alaska Airlines blowout was caused by a "quality escape."