Southwest Airlines is among the companies that grounded Boeing 737 MAX aircraft because of a software failure that caused fatal crashes of Lion Air and Ethiopian Airlines planes. The FAA said Wednesday it has found a new flaw in the plane that needs to be fixed. Ralph Freso/Getty Images hide caption
Boeing Chief Executive Dennis Muilenburg speaks during a press conference after the annual shareholders meeting in Chicago on April 29. Jim Young - Pool/Getty Images hide caption
Raytheon and United Technologies are combining in what they describe as a merger of equals. Jim Watson/AFP/Getty Images hide caption
Boeing said on Sunday that it was aware of problems with a key safety indicator in 2017, but it didn't inform airlines or the FAA until after the Lion Air crash a year later. Here, 737 Max jets built for American Airlines (left) and Air Canada are parked at the airport adjacent to a Boeing production facility in Renton, Wash., in April. Elaine Thompson/AP hide caption
Boeing Chief Executive Officer Dennis Muilenburg speaks at the Boeing Annual Shareholders Meeting on Friday in Chicago. Pool/Getty Images hide caption
A Boeing employee works on the fuselage of a 737 Max 9 test plane at the company's factory in Renton, Wash., on March 14. Orders for durable goods jumped 2.7% last month, fueled in part by strong demand for commercial aircraft. Stephen Brashear/Getty Images hide caption
Acting Secretary of Defense Patrick Shanahan was cleared by the Pentagon's Inspector General of allegations of ethics violations. Shanahan is seen here testifying at a House Armed Services Committee hearing last month. Drew Angerer/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., on March 28. Boeing said its financial outlook is uncertain as it deals with the 737 Max grounding. Mark Ralston/AFP/Getty Images hide caption
Analysts say Boeing CEO Dennis Muilenburg and the company were slow to take responsibility in the crashes of two 737 Max planes within months of each other. Anna Moneymaker/Bloomberg via Getty Images hide caption
A new Airbus A320neo aircraft is presented by the Spanish airline Vueling at Barcelona's airport on Sept. 27, 2018. The Trump administration is preparing to slap tariffs on imports from Europe, citing subsidies of Airbus jets. Josep Lago/AFP/Getty Images hide caption
A Boeing 737 MAX 8 airplane sits on the assembly line on March 27, in Renton, Wash. Boeing is slowing production of its grounded Max airliner while it works on fixing flight-control software in the wake of fatal crashes. Ted S. Warren/AP hide caption
An Ethiopian Airlines Boeing 737 Max 8 sits grounded in Addis Ababa, Ethiopia, in March. Ethiopian officials on Thursday released the initial report into last month's crash of a Max 8. Mulugeta Ayene/AP hide caption
At a Senate hearing March 27, Daniel Elwell, acting director of the Federal Aviation Administration, said airline pilots had enough training to handle Boeing's flight control software. But some pilots disagree. Andrew Harnik/AP hide caption
On the day of the Lion Air crash, Verian Utama (left) was traveling on the flight with a former pro rider named Andrea Manfredi (right), a friend who also perished. Courtesy of Verian Utama's family hide caption
Federal Aviation Administration Acting Administrator Daniel Elwell (left), National Transportation Safety Board Chairman Robert Sumwalt, and Department of Transportation Inspector General Calvin Scovel, appear before a Senate Transportation subcommittee on commercial airline safety on Wednesday to discuss two recent Boeing 737 Max crashes. Alex Brandon/AP hide caption