A Default setting to Max Power in the event of a Engine Control system failure is fraught with peril.....especially if the aircraft has very strong engines.
I had one in an empty Chinook that was also low on Fuel.....it was amazing the Rotor Blades stayed with us! Sadly....when you raise the Lever to control the Nr.....the good engine followed and that gave us way...way....way too much Ooomph going to the Rotor System.
Shutting down the bad engine was the only answer in the failure I had.....and deciding which engine was the bad one was complicated by the screaming of the Gearboxes and Crew.
The giveaway was one Engine was way above Topping N-1.....and the other was at Topping N-1. Torques were close with the bad engine being higher than the good engine.
For you Wokka drivers....it was an N-2 Overspeed Drive Shaft Failure....before it was in the Checklist or Flight Manual.