sentences:  No official investigation has ever been conducted on the crash by the Hungarian authorities.The aircraft was allegedly shot down during final approach, probably due to its assumed involvement in the Lebanese Civil War.Korean Air Lines Flight 902 (KAL902, KE902) was a civilian Boeing 707 airliner shot down by Soviet Air Force Sukhoi Su-15 fighters on 20 April 1978, near Murmansk, Soviet Union, after it violated Soviet airspace and failed to respond to Soviet interceptors.