Choppie - as Bravo 73 says - getting to the pedal stops in extreme manoeuvres is usually Loss of Tailrotor Authority, LTA, (it is working fine but you can't apply any more pitch to it).
If you get to the stops doing normal manoeuvres then chances are you have Loss of Tailrotor Effectiveness,LTE, but you are unlikely to experience this in anything but a 206 - the TR is just not big or powerful enough for the aircraft.