FENNER, N.Y. >> An energy company that operates a wind farm in central New York says it trying to determine why a 113-foot-long blade fell off one of its windmills.

The Post-Standard of Syracuse reports that officials in the Madison County town of Fenner say it appears the blade fell off Wednesday morning at Enel Green Power-North America's wind farm. The blade landed near the 200-foot-tall structure located in an open field.

Town official say they believe a bolt may have failed on the 187-ton windmill, one of 20 located at the Fenner Wind Farm, which was built in 2001 on a hill 15 miles east of Syracuse.

Local officials say the windmill that lost the blade is the same one that collapsed in December 2009.

Company officials say they're working with the turbine supplier to investigate what happened.

Information from: The Post-Standard, http://www.syracuse.com