NEW YORK (AP) A chunk of weather-beaten flotsam that washed up on a New York shoreline after Tropical Storm Ian last fall has piqued the interest of experts who say it is likely part of the SS Savannah , which ran aground and broke apart in 1821, two years after it became the first vessel to cross the Atlantic Ocean partly under steam power.

The roughly 13-foot (4-meter) square piece of wreckage was spotted in October off Fire Island, a barrier island that hugs Long Islands southern shore, and is now in the custody of the Fire Island Lighthouse Preservation Society. It will work with National Park Service officials to identify the wreckage and put it on public display.

It was pretty thrilling to find it, said Betsy DeMaria, a museum technician at the park services Fire Island National Seashore. We definitely are going to have some subject matter experts take a look at it and help us get a better view of what we have here.

It may be difficult to identify the wreckage with 100% certainty, but park service officials said the Savannah is a top contender among Fire Islands known shipwrecks.