The missing data deepens the puzzle of what caused the deadly air disaster in Muan, South Korea, late last month.

The two black boxes on the Boeing jet involved in the worst aviation disaster on South Korean soil stopped recording about four minutes before the accident, the transport ministry said on Saturday. So

South Korean and United States investigators are still probing the cause of the crash of Jeju Air flight 2216.

Jeju Air jet’s ‘black box’ stopped recording just minutes before the airliner hit a concrete structure at South Korea's Muan airport on December 29, the transport ministry said on Saturday. Without the black box data, the flight information and cockpit voice recorders are missing.

The damaged flight data recorder had been deemed unrecoverable for data extraction by South Korean authorities, who sent it to the United States for analysis at the US National Transportation Safety B

The black boxes of the ill-fated Jeju Air flight stopped recording four minutes before the crash, South Korea 's transport ministry has revealed. The Boeing 737-800 was flying from Thailand to Muan in South Korea on December 29, when it belly-landed at Muan airport and exploded after hitting a concrete barrier.

South Korea’s leading low-cost carrier, heavy with debt and its stock already near record lows, is now facing intense public and government scrutiny.

The black boxes from the Jeju Air Co. passenger plane that crashed last month have been found to lack crucial data from the final four minutes before the explosion, Yonhap News Agency reported, citing South Korean investigators.

Before it suffered the deadliest crash in South Korea's history, budget airline Jeju Air was moving fast: racking up record passenger numbers and flying its aircraft more than domestic rivals and many of its global peers,