Siddharth Philip And Ryan Beene Bloomberg

Back in October, Boeing Co. Chief Executive Officer Dave Calhoun sought to rally employees reeling from a manufacturing setback, this time involving wrongly drilled holes in a crucial aircraft section.

The fuselage section that ripped away from a Boeing Co. 737 Max jet midflight on Friday reflects a design feature in use for many years, suggesting investigators are likely to zero in on issues in the manufacturing process rather than a design flaw.

Back in October, Boeing Co. Chief Executive Officer Dave Calhoun sought to rally employees reeling from a manufacturing setback, this time involving wrongly drilled holes in a crucial aircraft section.

The fuselage section that ripped away from a Boeing Co. 737 Max jet midflight on Friday reflects a design feature in use for many years, suggesting investigators are likely to zero in on issues in the manufacturing process rather than a design flaw.