The hits keep on coming for Richard and Mayumi Heene.

As the amateur scientists and would-be reality stars from Fort Collins, Colo. stare down potential criminal charges as well as scrutiny from Child Protective Services, their newest worry is the Federal Aviation Authority (FAA).

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The FAA plans to investigate the Oct. 15 "balloon boy" incident to ascertain whether the Heenes violated regulations that prohibit the launch of large unmanned balloons, the Washington Post reports.

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Specifically, by launching their manmade balloon without proper notification, the Heenes could have dangerously interfered with air traffic. If charged, they face "financial penalties or an 'enforcement letter'," the Post reports.

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Colorado's Larimer County Sheriff Jim Alderden noted Monday that it may take a week or longer for criminal charges to filed against Richard Heene, 43, for staging a hoax (the false disappearance of son Falcon, 6) and endangering their child.

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