Quote from the Av Herald (
Incident: Delta B744 at New York on Dec 11th 2010, fire in galley)
"During the descent towards JFK the crew reported, the fire had gone out, they had a number of fuel pumps malfunctioning and wanted to remain in the close vicinity of the airport in case they needed to immediately land, but they wanted to dump fuel for about 45 minutes. The airplane entered a holding near the airport, dumped fuel and landed safely on runway 31L about 90 minutes after departure."