maybe a stupid question, but I'm looking at the logs on a completed and flying 10 that is for sale, and it seems like every year or two since new, the builder has had to chase fuel leaks in both wing tanks. coming from mooneys, that's usually a sign that the tank seals are failing and need to be redone to the tune of about 15k. on the mooney, once they're redone they're good for a couple decades and don't leak usually unless something like a gasket at the base of the tank where the fuel senders sit fails. most puzzling is pretty recently an a&p went in and patched some for them in the left tank this year, the left seems the most troublesome for them.
I guess I'm asking if the tanks just weren't sealed well during construction, or if it's just something that happens periodically and that is just a minor annoyance to be dealt with. and if it is abnormal, is it a major hassle or even possible to at some point just remove the tanks and completely reseal them or is it something that you have to take the plane to someone like weep no more in MN like you would a mooney that has the tools to get in there and seal them in place?
I guess I'm asking if the tanks just weren't sealed well during construction, or if it's just something that happens periodically and that is just a minor annoyance to be dealt with. and if it is abnormal, is it a major hassle or even possible to at some point just remove the tanks and completely reseal them or is it something that you have to take the plane to someone like weep no more in MN like you would a mooney that has the tools to get in there and seal them in place?