Mini wrote
"warming up" a jet engine was something I always considered the preserve of AN 124's etc... ie not normal practice
As an air traffic controller I can assure you that we had (a year or two back)an instruction that Bmi a321's would require to hold before the first flight of the morning with power on to "bring the oils up to temperature"...so it seemed that they at least had it as normal practise. As for the Antonov...NOTHING they did was in the least normal ...a magnificent aircraft ..loved them!!