Can anyone explain this to me?
We had a major discussion today regarding the correction you shall apply to the altimeter when the temperature is below standard, i.e. 4%/10 degree below. Should this correction be taken from the altitude or height listed on the approachplate, e.g. OM crossing altitude 1400' but OM crossing height only 500'?
And what about an MSA of 14000', if ATC informs you that temperature at the airport is 10 degrees below standard, do you take 4% of the 14000 feet, or only the assumed height?
please clear this up for us
