Hi Genghis,
Yes it is, but what I am trying to find out is why a flight training organisation has made the statement that use of carb heat on the approach can cause carb icing. For a certainty Piper do say fly the approach with cold selected but the POH then seems to say that this is in order to obtain full power on a go around and avoid detonation. There is no mention of carb heat causing icing and so I repeat, Is there any official publication, bulletin, AD, AIC etc: that has caused this FTO to make such a claim with specific reference to the PA28 ?
Thanks all for the input and happy new year.