SEATTLE: Dozens of Boeing 777 planes were grounded worldwide Monday (Tuesday in Manila) following a weekend scare on a United Airlines’ plane that suffered engine failure and scattered airplane debris over suburban Denver.
The incident on the flight out of Denver—which quickly returned to the airport after part of the engine caught fire and broke off—prompted United and other airlines to ground planes with the same Pratt & Whitney engine.
While no one was injured in the Denver incident, the episode is the latest setback for Boeing, which only recently resumed deliveries of the long-grounded 737 MAX following two fatal crashes of that plane.
Aviation experts said the incident especially raised questions about Pratt & Whitney and United over engine maintenance.
“It’s nothing like the MAX,” said Teal Group aviation analyst Richard Aboulafia. “After all these years of service it is unlikely to be a design issue with the engine, certainly it is something to do with maintenance.”
The Denver incident followed a Japan Airlines 777 incident in December involving the same type of engine, as well as an engine problem in February 2018 on a United flight.
“There might be a common theme” among the three incidents “but until the investigation is complete, we don’t know that,” said Scott Hamilton of Leeham News, an aviation news site…