Boeing uncovers another defect on 787 Dreamliner

Boeing said on Thursday a supplier told the planemaker that certain 787 Dreamliner parts were improperly manufactured, the latest in a series of problems to plague the wide-body aircraft.

The company did not name the supplier, nor did it identify the part, although the Wall Street Journal earlier reported that the defect involved certain titanium parts that are weaker than they should be.

"While our investigation is ongoing, we have determined that this does not present an immediate safety of flight concern for the active in-service fleet," a company spokeswoman said in an emailed statement.

Undelivered aircraft would be reworked as needed, Boeing said, adding that any fleet actions would be determined through its normal review process and confirmed with the US Federal Aviation Administration.

The FAA did not immediately respond to Reuters request for comment.