Within a day, issued a statement urging airlines to suspend use of 777 jets with the same Pratt & Whitney PW4000 engines - effectively grounding 128 jets as investigations played out."If there is anything Boeing has learned from the MAX situation, it's to take action immediately," one industry source familiar with Boeing's thinking said. Boeing's response to Saturday's engine failure reflects the challenges its brand and image face as the company rebuilds its core commercial jet programs and its corporate finances. Saturday's dramatic incident, and a separate incident the same day in the Netherlands during which another PW4000 engine blew apart on a 747, sparked a storm on social media, where widely shared videos showed jet engines on fire mid-air and a massive engine blade wedged into the roof of a car.