Boeing’s 737 MAX evolved to meet surging international demand for air travel and in the process became its top-selling plane. WSJ’s Jason Bellini looks at how the grounding of the fleet following the Ethiopian Airlines crash could have a significant impact on Boeing’s future. Photo: GettyLE BOURGET, France—Efforts to get Boeing Co.’s 737 MAX jetliners back in the air have been delayed in part by concerns about whether the average pilot has enough physical strength to turn a manual crank in extreme emergencies. The concerns have made the issue the focus of engineering analysis, simulator sessions and flight testing by the plane maker and American air-safety officials, according to people familiar with the details. The extent of the internal debate hasn’t been previously reported.

Source: Wall Street Journal June 19, 2019 09:53 UTC