OT. Sumakit ata ulo sa pag-intindi nung ng comment na iyon.

Well, first I am not an engineer.
It may seem logical that gasoline (fuel) together with an electrical-mechanical device (fuel pump) is a recipe for a fire accident.
But if I am right, it is improbable to create combustion when the fuel pump is submerged because you need oxygen for the combustion process to occur.

The probability is therefore very low for this to happen. Although I don't have the exact statistics, the fact that we don;t hear problems about this kind of fuel delivery system and it is still being used today means my thoughts are right.