Boeing 777 Engines Made by Pratt & Whitney Already Faced New Scrutiny

Boeing 777 Engines Made by Pratt & Whitney Already Faced New Scrutiny

Boeing 777 Engines Made by Pratt & Whitney Already Faced New Scrutiny

Pieces of an airplane engine scattered in a neighborhood Saturday in Broomfield, Colo.

Pieces of an airplane engine scattered in a neighborhood Saturday in Broomfield, Colo.

Photo: Michael Ciaglo/Getty Images