Medical students who survived when an Air India plane crashed into their hostel in Ahmedabad say their first reaction was to help treat the injured.

Officials said they had found the cockpit voice recorder that may provide crucial clues about what caused the Air India flight to crash, killing at least 270 people.

The head of Boeing Commercial Airplanes, Stephanie Pope, met the chairman of Air India on Monday in India, two sources said, as the companies seek to find the cause of last week's fatal crash involving a Boeing 787 Dreamliner.

The father of the village postmaster has been named among those who died in the Air India plane crash last week. Kirit Patel was killed when the London-bound Air India plane crashed soon after taking off on Thursday from Ahmedabad, along with 240 other passengers.

An Air India Boeing 787-8 flight headed for New Delhi returned to Hong Kong shortly after takeoff Monday because of a "technical issue," Indian media reported.

Three days after the crash, only 35 bodies had been handed over to relatives from an overall official death toll of 270.

Air India's Chairman N. Chandrasekaran on Monday told staff that last week's plane crash that killed at least 271 people should be a catalyst to build a safer airline, urging employees to stay resolute amid any criticism.

Boeing's CEO pulled out of the Paris Air Show following the Air India crash, which has set a somber mood for the aviation and defense event at Le Bourget.