A free app for Android, by i6 Games.

Airplane Firefighter Sim is an exciting action game where you need to put out a lot of fires in the air. The game is all about fighting and saving lives, so get ready for the adventure of your lifetime.

You need to get up in the air and fight the flames spread all over the city. Use the water cannon to extinguish the fires, and be sure to use the right tools for each job. 

Be careful and slow down when you drop the water, because if you miss it, you’ll have to fill the plane up with more water.