Originally Posted by
vilas
You require DME and ht/dist check also. Air Canada SOP didn't have it they crashed short of RW dispite being on CDFA profile only a parallel little short of the actual.
For those not familiar and the sake of completeness, also because this actually is MDA (OCA) discussion:
That a/c
https://www.tsb.gc.ca/eng/rapports-r.../a15h0002.html busted minima by 380 feet without visual reference. If they followed the charted profile (some pilots do with their IR not SOP) they may had just crashed onto the runway instead of ploughing through the ravine. Like these clowns
https://aviation-safety.net/database...?id=20150304-0