By CBS 2 Chicago Staff

CHICAGO (CBS) — Safety concern for Chicago-based Boeing from a group of its own engineers.

They work on key safety tasks and make reports to the federal aviation administration.

An FAA survey of a small sample of engineers found one-third were concerned about being able to work free from pressure from their supervisors.

Boeing said it will follow up and survey all 1,400 employees in the unit.

CBS 2 Chicago Staff