The passengers knew, that the aircraft was in danger. They had been told to put on their life vests, she said. The life vest saved Bahiya's life, as she did not learn to swim. At sea, she grabbed hold to a part of wrackage. In the beginning, she heard other survivors near to her, who later on probably drifted away or drowned. She was unconcious several times. At dawn, Bahiya was alone. A Comorian fishing boat spotted her and took her on board. She was conscious, and asked for water.
(my italics) Source :