This really should not be an issue. Maybe I have been flying a different AW139.
Operating at the gross weight of 6400 KG, I think if you accidently over-torque this aircraft a torque limiter is the least of your problems. I can't think of any time over the last 3 years flying this aircraft under normal operations (max gross weight at up to 40 degrees C) that I have been so close to a limit on torque that this has even been an issue. If operating at the higher gross weight of 6800 KG disregard the previous statement.
If you need to use more than 220% AEO on a regular basis, I think you need to take a look at your operations or weights, IMHO.
If I ever need to use more than that, I want it all available as it will be an emergency.
Last edited by platinumpure; 14th Jun 2009 at 15:58.