Key points: Boeing's 737 MAX series was involved in two fatal crashes killing over 300 people
From the world's best-selling commercial jet, the 737, to the world's first jumbo jet, the 747, Boeing's aircraft have defined the modern aviation era and international travel for many around the globe.
But in recent months, the company has hit unprecedented turbulence after two separate air crashes involving its 737 MAX jets killed over 300 people within five months, which resulted in global suspensions of the fleet.
In the interim, Boeing has said it tested a software fix for the 737 MAX flight across 96 flights, and added that 67 per cent of carriers using the plane had tested the update in simulator sessions.
While questions will continue to be asked about why a manufacturer known for its admirable safety record let a crucial flaw through its design process, Dr Dell said more questions needed to be asked about how automated systems are tested.