 It's very unlikely. I'm almost 100% sure Hezbollah does not store their weapons at the Beirut airport. That's not how the Beirut airport works. Hezbollah doesn't control the Beirut airport. There are different factions in Lebanon that all have some security measures over the Beirut airport, but not in a way where Hezbollah could store weapons. That's not how Hezbollah brings weapons into the country.