AHMEDABAD, India (Reuters) -Officials from the U.S. National Transportation Safety Board (NTSB) surveyed the site of Air India plane crash that killed at least 271 people, sources said on Sunday, with families continuing to wait for DNA profiling results to identify charred bodies.

The only survivor of the tragic Air India plane crash recalled his experience of walking off the plane after the accident. Viswash Kumar Ramesh, a British national, was onboard the doomed flight AI171, which took off from Ahmedabad on Thursday 12 June, bound for London Gatwick.

This comes nearly a month after a Turkish company managing operations at nine major Indian airports lost its security clearance, following Ankara's stance supporting Pakistan during Operation Sindoor.

An early focus of the probe includes a possible loss or reduction of thrust.