2 pilots from Swiss cannot fly. They drink too much alcohol. This happens in May in Genf.
The crew notices the alcohol. The crew tells the bosses. They tell them before the flight starts.
The pilots are in the hotel. The company stops their work. New pilots replace the 2 pilots.
Swiss checks the event now. The 2 pilots must not fly. The company gives them hard rules.
Safety is very important for the company. The company keeps the names secret. The goal of the flight is also secret.