There were several similar VC10 incidents around that time. IIRC there was a problem wth the brake return line which could allow the brakes to pressurise with the parking brake off.
I believe one aircraft came to a grinding halt on the runway intersection at Melbourne, to the considerable displeasure of the airport authorities and, I imagine, not a few would-be air travellers in the State of Victoria.
It took some time for the problem to be diagnosed and for a while VC10 pilots were continually having their feet inspected! (to ensure heels were on the floor and away from the brake pedals on landing).
Nothing to do with the tragic accident at Addis, though.