Ignition lock seized???

[BucksTherapy]

I have a 99 Electra Glide and the ignition lock is seized in the unlock position. I have the key but something let go inside the lock and the key will no longer turn.
I have read the instructions for removing the lockset which won't work if the key won't turn counterclockwise.
What needs to happen to get the lock set out so I can replace it?

 

[glider]

Probably best to go to a locksmith without drilling the tumblers out.

 

[BucksTherapy]

Thanks for your note. I took it to a locksmith and he basically said he couldn't help. Apparently the problem is inside the lock.

I think the next step is to drill out the tumblers. I have never done this can anyone offer advice?