South Korea has decided to extend to April 18 the shutdown of Muan international airport where a Jeju Air passenger jet crashed last month, the transport ministry said on Saturday.

The nation’s transport ministry reviewed structures near airport runways after the deadly crash of a Jeju Air flight late last month.

After overcoming pariah status at the end of the last century, South Korea must learn what caused the catastrophe on Dec. 29 and what lessons to draw from it.

A former transport ministry accident investigator said the discovery suggests all power, including backup, may have been cut, which is rare.

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.

South Korea said it planned to improve the structures housing the antennas that guide landings at its airports this year after December's fatal crash of a Jeju Air plane, which skidded off the runway and burst into flames after hitting such a structure.

Investigators have confirmed the presence of bird feathers and blood in both engines of the Jeju Air jet that crashed last month in South Korea, killing 179 people, according to a source familiar with the ongoing probe.

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Investigators found bird feathers and blood in both engines of the Jeju Air jet that crashed in South Korea last month, killing 179 people, a person familiar with the probe told Reuters on Friday.

Investigators found bird feathers and blood in the two engines of the Boeing jet that crashed in South Korea on Dec. 29, a person familiar with the probe told Reuters on Friday. Jeju Air 7C2216, which departed from the Thai capital Bangkok for Muan county in southwestern South Korea,

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