The Boeing headquarters is seen amid the coronavirus pandemic on April 29, in Arlington, Va. Boeing announced sweeping cost-cutting measures Wednesday after reporting a first-quarter loss of $641 million following the hit to the airline business from the coronavirus pandemic. Olivier Douliery/AFP via Getty Images hide caption
Grounded Boeing 737 Max airplanes fill a parking area adjacent to Boeing Field in Seattle on Feb. 19. Boeing said it will begin opening plants in Washington state in phases, starting April 20. Elaine Thompson/AP hide caption
Employees work on Airbus SE A321 fuselages at the company's final assembly line facility in Mobile, Ala. in 2017. Bloomberg/Bloomberg via Getty Images hide caption
Rescuers work at the scene of the Ethiopian Airlines 737 Max crash south of Addis Ababa, Ethiopia last year. Mulugeta Ayene/AP hide caption
A Boeing 737 Max 9 sits at the front of the assembly line at the company's airplane production facility in Renton, Wash., in February 2017. Elaine Thompson/AP hide caption
Why are some warnings heard, while others are ignored? Angela Hsieh hide caption
A Boeing 737 Max airplane being built for Norwegian Air International taxis for a test flight, at Renton Municipal Airport in Renton, Wash. Ted S. Warren/AP hide caption
A rescue worker combs the wreckage of a Ukraine International Airlines plane near Iran's Imam Khomeini International Airport on Wednesday. All 176 people on board died in the crash, which Ukraine is now investigating. Ebrahim Noroozi/AP hide caption
A rescue worker searches the scene where a Ukraine International Airlines plane crashed near Tehran's Imam Khomeini International Airport on Wednesday. All 176 people onboard the Boeing 737-800 were killed. Ebrahim Noroozi/AP hide caption
Search and rescue workers at the crash site of a Ukrainian Boeing 737 outside Tehran, Iran. The plane crashed just after takeoff, killing all 176 aboard. Anadolu Agency via Getty Images hide caption
Boeing announced Dennis Muilenburg is out as CEO. Andrew Harnik/AP hide caption
Boeing, NASA, and U.S. Army personnel work around the Boeing Starliner spacecraft shortly after it landed in White Sands, N.M., Sunday. Bill Ingalls/AP hide caption
A time exposure of the United Launch Alliance Atlas V rocket carrying the Boeing Starliner crew capsule on an flight test to the International Space Station lifts off in Cape Canaveral, Fla., on Friday. Terry Renna/AP hide caption
Boeing is the top U.S. exporter, and its decision to suspend production of the 737 Max is expected to ripple through the manufacturing supply chain and bring down economic growth. Jason Redmond/AFP via Getty Images hide caption
Southwest Airlines Boeing 737 Max aircraft are parked on the tarmac after being grounded, at the Southern California Logistics Airport in Victorville, Calif., in March. Mark Ralston/AFP via Getty Images hide caption