Domanda 50, Operational Procedures - ATPL - Airline Transport Pilot license

At the estimated time of arrival, at or above the planning minima.
During a period from 1 hour before to 1 hour after the estimated time of arrival at the aerodrome, at or above the planning minima.
At the estimated time of arrival better than the minimum conditions required for aerodrome use.
At the estimated time of arrival, and for a reasonable period before and after such a predicted time, equal to or better than the minimum conditions required for aerodrome use.