The Boeing Co. (BA). is pushing back the schedule of its troubled 787 Dreamliner jet program by about six months as it works to unwind delays caused by the recently concluded union-machinists strike, and by thousands of improperly installed fasteners on the first couple of jetliners on the production line. This puts the high-profile airliner program about two years behind schedule.

The Chicago-based aerospace giant also has unveiled a series of management changes it says will improve supervision of both supply-chain management and production quality at improving oversight of supply-chain and quality problems that led to delays on all of Boeing’s jet programs in recent months.

With the move, the fuel-efficient jet’s first flight has been shifted into the second quarter of 2009 and first delivery into the first quarter of 2010. Prior to the strike that halted much of the company’s commercial airplane work from early September into November,

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