One thing I have found out is when one CA hinge comes loose, chances are at least one more will come loose too. If you want to replace them just cut through them all to remove the control surface and use a non-CA hinge. I like to use [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXET57&P=ML]Robart Hinge Points[/link] as a replacement, and glue them in with [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXCX67&P=ML]Zap Hinge Glue[/link]. This is very easy combination to work with and holds great.

I'm in the process of rebuilding a plane that was assembled with CA hinges will be using those hinges and glue when I finish covering and assembling it.

Hogflyer