If you are referring to AD 09-22-02, the affected seats have 3/16" bolts where the back mounts to the seat bottom.
If your seat has 1/4" bolts, this AD has been compiled with. has been complied with.
I believe there are 3 AD notes on the seats, so it's important to know which AD you refer to.
As always, read the AD and or call American Champion Aircraft, they are very helpful.