Mumbai, Aug 12: The helicopter, which crashed into the Arabian Sea while ferrying 25 ONGC employees, has been located 180 miles off Sagar Kiran lying upside down, even as the DGCA announced an inquiry into the cause of the crash. The night-long search operations by the vessels of ONGC, navy and coast guard led to the location of MI-72 helicopter lying upside down in the water, an ONGC spokesperson said here today. Efforts are on to bring up the chopper which crashed yesterday three minutes after take-off with 29 persons aboard, including four crew members of Mesco aviation. The spokesperson said only three bodies have so far been recovered, while 24 others are fear trapped in the chopper. Two survived the crash. Bureau Report