United States Navy officials admitted members of the organization drew what some perceived as obscene images in the sky in Washington this week.
But commanders at Naval Air Station Whidbey Island did not see the amusing side and have ordered an inquiry.
In case there was any doubt, the US Navy has confirmed that there is "zero training value" in drawing genitalia in the sky.
Officials from the Naval Air Station Whidbey Island told KREM in a statement that the drawings were "absolutely unacceptable".
"The Navy apologises for this irresponsible and immature act", she added.
A mother in Okanogan, Washington, told the station she was upset because she might have to explain the drawings to her kids.
"We have grounded the aircrew and are conducting a thorough investigation - and we will hold those responsible accountable for their actions".
Officials went on to say they apologized for the "unacceptable action" and are investigating.
KREM 2 asked the Federal Aviation Administration about the incident, and the FAA responded that while there is no safety risk to giant dicks painted in the sky, they "cannot police morality".