Yesterday, a Sun Express Boeing 737-800 being preparing for a flight from Antalya,Turkey to Paderborn, Germany suffered a nose gear retraction on ground. Passengers had not yet boarded the aircraft. The nose gear retracted while technicians were replacing a nose gear tyre. technicians were working to replace one of the nose gear tyres when the nose gear retracted. A technician suffered a minor head injury and two cabin crew suffered minor injuries, all were taken to a hospital.
A replacement aircraft was available at the time and the flight reached Paderborn 100 minutes later than the scheduled arrival time.