The expanse of white foam not only filled the hangar Saturday but it spilled out onto the tarmac where the wind blew puffs of it into the air like a snow storm.

The incident at Northeast Airport occurred during Agusta Aerospace's family day outing. Authorities said an employee's child hit a button that said "Don't hit button unless in an emergency" WPVI-TV in Philadelphia reported.

The Philadelphia Fire Department was called out to to clean up the mess. There was no word on any damage to the helicopter inside the hangar.