Let's take a stationary widebody aircraft at MTOW. Lock up the brakes and go to TOGA. Will it move?
From
Airbus 340-600 Crash: A Study on HFACS - AviationKnowledge
"Preconditions for unsafe acts - Loss of situational awareness and complacency. The Airbus technician in charge of the engine run test was unaware that the aircraft was moving until the customer representative told him so.
He testified to have often carried out this kind of test, but at a higher aircraft weight."
So I guess the tyre friction at MTOW is strong enough to prevent the aircraft from moving.
A330/A340s don't, but I think you are allowed to take only one engine at a time to TOGA.
" Violations - During the test for detecting oil leaks, the procedure to apply thrust on two engines only was not systematically carried out. All four engines were brought to full power,
procedures required running up two engines – the one leaking and one on the other wing (
to prevent torquing and yawing of the fuselage).The Aircraft Maintenance Manual (AMM) and the CAM (Customer Acceptance Manual) state that the engines tests must be carried out with the use of wheel chocks for the main landing gears."
http://www.flightglobal.com/blogs/ai...-600-incident/