Days after the plane crash in India, it has been unveiled that the flight's black box has gotten damaged. Sources stated that the development is a mystery.

The black box units from the wreckage of Air India Flight AI-171, which crashed 36 seconds after takeoff from Ahmedabad on June 12, killing 274 people, including 33 on the ground, have sustained damage.

Air India said on Sunday it is temporarily reducing less than 5% of its narrowbody jet routes for "operational stability", its second such reduction following a plane crash earlier this month that killed all but one of the 242 people on board.