WASHINGTON, DC – Big industry production fell lower in September than it had since late 1974, largely as a result of hurricanes Gustav and Ike.

The Federal Reserve reported production at US factories, mines and utilities plunged 2.8% last month, in addition to a 1% drop in August.

The Fed estimated hurricane-related disruptions accounted for about 2.25 points of the total drop. In addition, a strike affecting the commercial aircraft industry also was a factor, accounting for around 50 basis points.

Economists originally forecast a September decline of 0.8%.