Complex sentence: Aeroflot Flight 1491, an Antonov An-10, suffers in-flight structural failure on approach to Kharkov Airport in the Ukraine; all 122 passengers and crew on board are killed.
Split into simpler sentences: Aeroflot Flight 1491, an Antonov An-10, suffers a in-flight structural failure while descending to land at Kharkov Airport in the Ukraine. All 122 passengers and crew on board are killed.