RST Engineering wrote:

(b) You cannot explain why "drain the sumps" is a daily check list event
for both fuel trucks AND airplanes.

(c) You cannot explain why CessBeePipMoo all have drains at the low point of
the fueling system. It would be a hell of a lot cheaper not to have to put
them in there. Somebody somewhere thought it was a good idea.

Aren't there other, more common reasons for sumping the fuel, such as
removing sediment, checking fuel type, and removing water that may have
been introduced via a contaminated fuel source?

Any of these problems could take an aircraft down, so the value of having
the sumps is much greater than simply removing water that may have
condensed within the cells/bladders/tanks from the surrounding humid air.


(d) You cannot explain why a hangared 150 from this airport fifteen years
ago dumped it into a pasture off the end of the runway and then proceeded to
drain two QUARTS (yes, that's quarts) of water from the tanks.

And you can attest to the fact that the accident aircraft was indeed
hangared this entire time, ruling out leaky (which is pretty common with
old 150s) or non-existent fuel caps, and that the water was not introduced
from an external contaminated source?

--
Peter