U.S. Delves Into 787 Factory Issues as Boeing Probe Expands

  • Justice Department subpoenas focus on South Carolina plant
  • Boeing already under pressure over two 737 Max crashes

A Boeing Co. Dreamliner 787 plane sits on the production line at the company's final assembly facility in North Charleston, South Carolina.

Photographer: Travis Dove/Bloomberg
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The U.S. government has subpoenaed records from a Boeing Co. plant in South Carolina as well as employees who work there, signaling that its investigation of the U.S. planemaker now extends beyond the 737 Max, according to a person familiar with the matter.

The inquiry, which was first reported by the Seattle Times, has expanded to include a look into manufacturing of the 787 Dreamliner at a new Boeing plant in North Charleston, the person said.