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

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

As the investigation continues into the specific cause of the Jeju Air plane crash, authorities announced that all 179 of those who died have been identified as of Wednesday morning in South Korea.

A Jeju Air plane crash in South Korea became the country’s deadliest plane disaster in decades Sunday, killing 179 people with only two survivors and shocking the country and world, prompting an ...