An Easyjet Switzerland Airbus A320-200, registration HB-JXB performing flight U2-1234 from Budapest (Hungary) to Basel/Mulhouse (Switzerland/France), was enroute at FL380 about 110nm eastsoutheast of Stuttgart (Germany) when the crew reported smoke on the flight deck and decided to divert to Stuttgart for a safe landing on runway 25 about 30 minutes later.
The airline reported the aircraft diverted to Stuttgart due to a technical defect. The 162 passengers disembarked normally and were bussed to Basel.
A ground observer reported emergency services reacted to a call because of smoke in the cockpit, were in their stand by positions for landing and after a first examination of the aircraft accompanied the aircraft from the runway to the terminal and were overall engaged for about one hour after landing.
Full Av Herald report here