Vesna Vulovic, a flight attendant who alone, and miraculously, survived the midair explosion of a jetliner over Czechoslovakia in 1972 after plummeting thousands of feet onto a snowy hill, was reported dead on Saturday in Belgrade. She was 66.

Serbian radio reported her death without giving a cause.

Blic, a Serbian daily newspaper, said that locksmiths discovered her body in her apartment after forcing open the door. A neighbor said she had called Ms. Vulovic’s brother after Ms. Vulovic did not answer her phone calls.

Ms. Vulovic’s improbable story began on Jan. 26, 1972, in Copenhagen, where she was assigned to a Yugoslav Airlines crew for a flight to Belgrade. She recalled that she should not have been there; another flight attendant, also named Vesna, was supposed to be on the roster.

An hour into the flight, the plane, a DC-9, blew up over the Czech village of Srbska Kamenice. As others were believed to have been sucked out of the jet into subfreezing temperatures, Ms. Vulovic remained inside part of the shattered fuselage, wedged in by a food cart, as it plunged.