Boeing CEO Dennis Muilenburg has stated that there was "no surprise, or gap, or unknown here or something that somehow slipped through a certification process."[63] On April 29, 2019, he stated the design of the aircraft was not flawed and reiterated that it was designed per Boeing's standards.[64] In a May 29 interview with CBS, Boeing admitted that it had botched the software implementation and lamented the poor communications.[65]