Thanks to an aircraft machinists strike, the Gulf Coast hurricanes, and the Fed's restrictive monetary policy, output fell by 0.3%, after rising 0.3% in August.
New home construction and manufacturing came in softer than expected, while retail sales fell and underlying inflation took its first step down in six months.
The second-straight increase in core capital goods orders points to stabilization in equipment investment, which has been a drag on GDP in recent quarters.