Not a problem in Hawaii, Our fuel lines are screened in humidity and salt air -an excellent conductor
We just have to worry about our landing gear parts rusting away.

Current Conditions
Humidity: 69%
Dew Point: 65 °F / 18 °C
Wind: 12 mph / 18 km/h from the NNW
Pressure: 29.85 in / 1011 hPa (Rising)
Visibility: 7.0 miles / 11.3 kilometers
UV: 1 out of 16
Clouds: Few 3000 ft / 914 m
Few 3800 ft / 1158 m
(Above Ground