Jan 28 Space Shuttle Challenger disaster Mar 31 Mexicana Flight 940 Apr 02 TWA Flight 840 Apr 17 Hindawi affair May 03 Air Lanka Flight 512 Jun 18 Grand Canyon Airlines Flight 6 Aug 31 Aeroméxico Flight 498 Sep 05 Pan Am Flight 73 Oct 19 Mozambican Tupolev Tu-134 crash Oct 25 Piedmont Airlines Flight 467 Nov 06 British Int'l Helicopters Chinook crash Dec 25 Iraqi Airways Flight 163