The International Group for Historic Aircraft Recovery (Tighar) believes that Earhart and her navigator crashed on a Pacific island and died soon after.
A team was searching for evidence of the 1937 wreckage in the waters around Nikumaroro, but failed to find anything.
Earhart was the first woman to fly solo across the Atlantic Ocean in 1932.
She took off from Newfoundland in Canada and was heading for Paris in France, but landed well off-course in a field near Londonderry.
Yesterday marked the 115th anniversary of her birthday.
COMMENT RULES: Comments that are judged to be defamatory, abusive or in bad taste are not acceptable and contributors who consistently fall below certain criteria will be permanently blacklisted. The moderator will not enter into debate with individual contributors and the moderator’s decision is final. It is Belfast Telegraph policy to close comments on court cases, tribunals and active legal investigations. We may also close comments on articles which are being targeted for abuse. Problems with commenting? firstname.lastname@example.org