PA46: "Engine Torque Setting Problem"

[Foxy Loxy]

Hi all,

I am going to start by stating that I am an ATCO who does not have a PPL.

I've started this thread because I called a local standby today for a Malibu stating the above problem. The pilot diverted to us because we have a nice wide runway. I took it to mean that the a/c might go a bit wonky on the ground on landing, but in truth, it's a new one on me.

Can anyone tell me what this means, and what the possible consequences could be?

Thanks.