Obviously it's been a while now that the EA-6B's have had some aging structural issues. A couple years ago, the program office wanted to know if they could extend the life expectancy of the airframe indefinitely by operationally limiting the a/c to 3Gs. That's the program that I worked on. Turns out this past year they've had to replace the center wing portion due to fatigue failure. My memory is not helping here, but I do know that 3 locations on the a/c were being looked at. Were all three in the vicinity of the center wing inner panel? It's your standard 7050/7025 aircraft aluminum being used. If anyone knows about this, please enlighten me! Last week I was told that the A-6's had been limited to 4Gs for the same type problem late in their career.