Yesterday I had a call to look at an O3 Ford ignition that had stopped working.
The key didn't turn and the "hey stupid you left the key in the lock" chime was pinging away. It was the actuator that had got wedged out of the plug and was jamming the switch and preventing rotation.
I popped the ears off and was able to reset the actuator.
This was the new style 8 cut ignitions without the sidebar.
I replaced it with a side bar style ignition.