An investigation is underway to determine if travelers are at risk taking off and landing at MacArthur Airport in Ronkonkoma.

News 12 Long Island has learned that cracks along an apron where planes pull up outside the expanded Southwest Terminal is a cause for concern. Officials say concrete work was done in 2004 at the cost of $83 million. The fear now is that chunks of concrete can get sucked into airplane engines.

A spokesperson for Southwest Airlines say they are collecting information to begin working on repairs. Some believe the cracks could have occurred because the concrete work was done in bad weather. The Suffolk District Attorney?s office is said to be investigating.