The right engine of a Utair Boeing 737-46M VQ-BHZ had caught fire on ground at Moscow’s Vnukovo Airport during a safety demonstration on the 17th of April. Flight UT447 was supposed to depart Vnukovo (VKO) for Makhachkala’s Uytash Airport (MCX) in Dagestan, Russia. Three passengers opened the emergency door and stepped onto the wing as they saw the flames coming out of the engine. The aircraft involved in the incident is 22 years old and has flown with Virgin Express, Virgin Blue, Air Transat, and Czech Airlines before joining the fleet in September 2010. A 737-800 was used to replace the plane and the passengers eventually arrived in Makhachkala 2.5 hours behind schedule.