I've read the South African report and nowhere does it say that the crew firewalled the throttles but, nowhere does it say they didn't firewall them!
Out of curiosity could someone post what sort of assumed temperature they would have been using at a 5558 feet airfield with a temperature 8 degrees above standard for the height. a 14mb qnh above standard and a light and variable wind. 9the conditions at the time) also what sort of rtow would have been used
I suspect that there wasn't a huge amount of extra thrust around to play with.