Here's what investors need to know before Boeing's earnings as Dreamliner issues mount

A Boeing Co. Dreamliner 787 plane with AirEuropa livery moves past the company's final assembly facility in North Charleston, South Carolina, U.S., on Tuesday, Dec. 6, 2016.
Travis Dove | Bloomberg | Getty Images

Boeing is expected to report its seventh consecutive quarterly loss before the market opens on Wednesday, according to analyst estimates.