http://avherald.com/h?article=48546eb6&opt=0A THY Turkish Airlines Airbus A320-200, registration TC-JPE performing flight TK-1878 from Milan Malpensa (Italy) to Istanbul (Turkey) with 97 passengers, landed on Istanbul Ataturk Airport's runway 05 at 10:22L (07:22Z) but rolled right just before touchdown causing the right engine and wing to contact the runway and a hard touch down. The crew initiated a go-around, then declared emergency due to an engine (V2527) inoperative. The crew subsequently reported an unsafe gear indication. The aircraft positioned for an emergency landing on runway 35L, touched down about 20 minutes after the go around, but with the right main gear collapsed the aircraft skidded on its right engine, with sparks and smoke trailing the engine, and veered right off the runway spinning nearly 180 degrees. The aircraft was evacuated via slides while emergency services started to spray the aircraft. There were no injuries, the aircraft received substantial damage to the right hand main gear, right hand engine and its pylon as well as to leading and trailing edge high lift devices at the right hand wing.
Not sure what happened here. Maybe he hit wake turbulence or wind shear. Maybe he let the approach speed get too low and stalled. Whatever, why the go around?