What the **** is intermeditate idle
"Intermediate idle (memory?? 62%) is required for ground aircon ops." What the???
Gen ties i am presuming you have a 208 endorsement. Could you explain where the intermediate idle detent is? Or do you just set 62% by the gauge. Unless of course you are just winding me up in which case hook line and sinker.
There is no risk of flame out simply by being in low idle, however there is a risk of flameout moving from hi to lo in flight, if that handle comes back one more notch then bingo flameout due to your own stupidity.
It is pretty simple lo on the ground hi in the air. There is only one correct way to do it. It is not a matter of "well it works for me".
Getting away from the caloundra incident as it hi/lo idle does not seem to be a factor. But the level of knowledge from people supposedly with endorsements is very worrying.
Have seen said instructor do one stupid act in the past, so maybe this should not really suprise me, am not commenting on his skill more his judgement.