India's aviation safety watchdog said on Tuesday surveillance conducted on Air India's Boeing 787 fleet did not reveal any major safety concerns, days after one of its jets crashed, killing at least 271 people.

The black boxes will provide cockpit conversations and data related to the plane's engine and control settings to investigators and help them in determining the cause of the crash.

An Air India flight bound for New Delhi was forced to return to Hong Kong shortly after takeoff on Monday due to what the airline called a "technical issue" — the second serious incident involving one of its Boeing 787 Dreamliners in less than a week. CBS News reported that Flight AI315 departed as ...