Doubt it: and, when concrete nimbus is in the neighbourhood it is a good idea to have raw data back-up, e,g, DME and monitor it. This should be a basic airmanship method, especially as so many airports are noise sensitive on SIDS and will punish the company severely for transgressions. Magenta line is not guaranteed; same as the speed limits displayed on my TomTom. Bust the real ones and TomTom is no defence.