The flier left the pipes behind and it wasn’t until 3 p.m., with the devices still lying around the screening area, when the supervisor finally realized he should notify someone.

He called a TSA bomb specialist — who took another two hours to arrive.

The expert decided the pipes could, indeed, be dangerous and notified the PAPD bomb squad. It shut down the area and hauled the objects away to the police bomb range in the Bronx, where they were found to be not a threat.