For The Boeing Co. (BA), the strike may be over, but the fallout continues. Just days after resolving an eight-week strike by 27,000 unionized machinist workers, the Chicago-based aerospace giant announced that the job action will force it to delay the first test flight of its problem-plagued 787 Dreamliner passenger jet until next year.

Boeing was planning to make the inaugural flight of the next-generation jetliner – already delayed four times – during the fourth quarter. But company spokesman Jim Proulx said the strike – which started Sept. 6 and forced Boeing to temporarily shutter its commercial aircraft business – forced the firm to push the test flight into next year.

Boeing is conducting a special assessment to determine just how much the strike affected its production schedule. The company will revise the Dreamliner’s schedule – including a new date for that first test flight – based