July 18 (Reuters) - A cockpit recording of dialogue between the two pilots of the Air India flight that crashed last month supports the view that the captain cut the flow of fuel to the plane's engines, said a source briefed on U.S. officials' early assessment of evidence.

The partial resumption will see restoration of some frequencies from Aug. 1, with full restoration planned from Oct. 1, Air India said.

Investigators probing the Air India crash that killed at least 260 people believe the actions of the jet’s pilots may have led to the crash, according to reports.Preliminary findings of the investigation into the Ahmedabad crash last month indicate that switches controlling fuel flow to the jet’s two engines were turned off,