Boeing boss Dennis Muilenburg has insisted the company is "committed to safety for the long run", in his first interview since the two 737 Max aircraft crashes. statement in April.
An Ethiopian Airlines flight crashed in March, killing all 157 people on board. Five months earlier, the Lion Air disaster claimed 189 lives.
The airline industry's trade body IATA has said that Boeing's 737 Max aircraft is unlikely to re-enter service before August.