wigglyamp, camlobe, Keepitup,
thank You ! Now I can say, that this AD is well known and is being performed in Europe. You are right, this AD came to EASA from UK.
When you say almost nobody does it or nobody knows about it, are you referring to where you come from ?
I am talking about my country only (somewhere in Eastern Europe). There is no equipment available for this check.
I know, that somebody is going to get toolset from Finland to perform inspection in this country.
Interesting thing: there is no approved method mentioned in the AD. Theoretically, can maintenance depressurise pitot tubes (imitating flight at particular altitude) and ask some local dispatcher: "What altitude do you see?" ? Is it real, does anybody do so ?
P.S. Main question was about performance of this AD over the Europe. THanks again.