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

Flight recorders from the passenger jet that crashed in South Korea last month, killing more than 170 people, stopped working minutes before the plane belly-landed and exploded on the runway, investigators said Saturday.

Korean investigators' efforts to understand the Jeju Air Boeing 737-800 crash at Muan have suffered a setback after both flight recorders failed to capture the final 4min of the accident sequence. The aircraft overran at high speed,

After analyzing the devices, the U.S. National Transportation Safety Board concluded​ that both the flight data and cockpit voice recorders stopped working about four minutes before the crash.

The two flight recorders on board a South Korean airliner stopped working before the jet crashed during an emergency landing and subsequent crash that killed 179 of the 181 people on board, officials said Saturday.

The black boxes holding the flight data and cockpit voice recorders for the crashed Jeju Air flight that left 179 people dead stopped recording four minute

A device that could shed light on South Korea’s deadliest plane crash is missing a critical component, authorities have revealed, potentially delaying the investigation into the cause of the accident that killed 179 people.

The black boxes of a Boeing jetliner that crashed in South Korea last month stopped recording about four minutes before the accident, South Korean officials said Saturday, possibly complicating investigations into the cause of the disaster that killed 179 people.

The investigation into the tragic crash of Jeju Air flight 2216 is picking up pace. The focus is now on carefully extracting data from the plane’s two black boxes. While the initial extraction of information from the cockpit voice recorder is complete,

The discovery of the missing data suggests all power may have been cut, which is rare, a former government accident investigator said.