Officials say the black boxes of a Boeing jetliner that crashed in South Korea last month stopped recording about four minutes before the accident.

South Korean acting President Choi Sang-mok ordered an emergency safety inspection of the country’s entire airline operation on Monday, a day after a fiery Jeju Air crash killed 179 people.

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 flight data and cockpit voice recorders on the Jeju Air jet that crashed on Dec. 29 stopped recording four minutes before the airliner hit a concrete structure at South Korea's Muan airport, the transport ministry said on Saturday.

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

Investigators of the South Korean airline crash on December 29 that killed 179 people have said the plane's flight recording devices stopped working minutes before the tragedy. Jeju Air's Boeing 737-800 burst into flames after it belly-landed at Muan International Airport in South Korea,