Re: low temperature correction
Popay,
The DA for a Cat 1 ILS is obviously at a barometric point which nominally occurs at about 200 ft above the threshold.
Using the tables from my company's manuals, at sea level and -30 C, there is a 40 ft error.
The approach criteria is designed around decisions at the minima, NOT below it, which is where you are by not applying any correction. I don't see temperature limits on any ILS plate from Jepps. What obstacle protection guarantees do you have when initiating a go around at 160 ft.?
So, I would still prefer to apply the correction. It's safe.