An Air India flight bound for New Delhi has returned to Hong Kong as a precautionary measure, after the pilot suspected a technical issue mid-air.

The cockpit voice recorder (CVR), commonly referred to as one of the two black boxes of the aircraft, has now been recovered from the debris, local media reported. The critical piece of equipment could include pilots' conversations from the cockpit, alarms and background sounds from the moments before the devastating crash.

A new video of last week's Air India plane crash, which killed 270 people, shows the lone survivor, Vishwas Kumar Ramesh, walking away from the crash site as the crashed flight turned into a fireball with plumes of black smoke engulfing the area.

HONG KONG -- An Air India flight returned to Hong Kong on Monday shortly after takeoff due to a midair technical issue, days after another of the airline's flights crashed and killed at least 270 people.

A new bombshell video provides evidence that the Air India Boeing 787 lost power immediately after take-off, an aviation expert claims. Commercial airline pilot Steve Schreiber said the HD-quality clip is a “gamechanger” in diagnosing the cause of the deadly crash.

All but one of the 242 people on board the London-bound flight died when it crashed into a residential area in Ahmedabad shortly after take-off.