The charred tail section of Delta Flight 191 sits near a runway at Dallas-Fort Worth International Airport in August 1985 after it crashed on approach. Delta quickly retired the "191" designation. Carlos Osorio/AP hide caption

itoggle caption Carlos Osorio/AP

Passengers move away from Asiana Airlines Flight 214 on Saturday in San Francisco. This photo was taken by a passenger. Eugene Anthony Rah/Reuters/Landov hide caption

itoggle caption Eugene Anthony Rah/Reuters/Landov

The wreckage of a crashed Lion Air 737 sits in water near the airport in Bali, Indonesia, Saturday, in a photo released by Indonesian police. All 108 people aboard survived the crash. AP hide caption

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This image provided by NASA taken early Friday morning Nov. 5, 2010 shows Hurricane Tomas approximately 175 miles west of Port-au-Prince, Haiti, and moving northeast near 9 mph. Tomas strengthened to a Category One Hurricane overnight with maximum sustained winds now at 80 mph with higher gusts.  NASA hide caption

itoggle caption NASA