The fireworks for Sunday evening were announced in the program folders, but shortly before the start of the five-day spectacle it was clear: This year the Rupertikirtag will end without a pyrotechnic show. “The implementing company has not received a permit,” said the Rupertikirtag organizer, Old Town Association. And: The company in question should have taken care of this approval itself. It is an exception under the Aviation Act, which must be applied for from the Supreme Civil Aviation Authority in the Ministry of Transport. But Christian Czech, whose company has been …