I’ve just recently begun playing my INN airport again. While I was having a look around, I found a Helipad with a Helicopter… any one else seen it?
Also I found this random Austrian plane sitting in, what I can only describe as ‘the naughty corner’ 
Eva 
Edit: for some reason I can’t attach my screenshots… 
The helipad sometimes has a helicopter on it, which if you see it and click on it gets you 50 coins
I tried pushing on it (I’m on phone) but nothing happened…
Eva
The helicopter comes in once a (game) day.
It’s a Airbus Rescue Helicopter (not sure about the model) mentioned in this Instagram post by WoA: https://www.instagram.com/p/B8OVCK4Bldy/?igshid=10x1w3gv8eell
Playable Helicopters would definitely be a good addition to the game in the future