Water in tank

[n86121]

There are a few ways water can get in the tanks. The fill ports sit in little 'swimming pools' that will fill with rain water, UNLESS:

Periodically replace the seals around the base of the fuel caps; when they dry out over the years, the encourage water to seep into the tanks past them.

Also, I keep some long pipe cleaners in my toolkit. It is imperative that the thru-wing drain holes are clear. I also drool a bit of fuel around the fill with every filling, to make sure these drains are clear. If not, I stop and clear them with the pipe-cleaners.

....I learned this the interesting way,...having experienced a front engine cutoff on rotation out of a 2600 ft runway in a valley one time....