A helicopter carrying the owner and the chairman of the Turkish conglomerate Zorlu Holding, Ahmet Nazif Zorlu, and his guests, made a controlled emergency landing on Sunday.Zorlu, his guests and the cabin crew were safely taken out of the aircraft.The holding has issued a press release regarding the incident, saying "Our Bell-430 helicopter made a controlled emergency landing in (western province of) Aydın's Karacasu district because of a technical error. Zorlu Group Chairman Ahmet Nazif Zorlu, his guests and the cabin crew escaped uninjured after the landing."Zorlu Holding, one of the largest conglomerates of Turkey, is the parent company of leading Turkish electronic manufacturer Vestel. The group also operates in energy and textile sectors.The factory of Vestel in Manisa was once featured in National Geographic's "Mega Structures" series.