Information from the 2 'black boxes' on Jeju Air jet crash is missing, South Korea reports

The two "black boxes" on the Korean Jeju Air jet that crashed on Dec. 29 stopped recording shortly before the jet crashed into a concrete structure. 

Both the flight data information and cockpit voice recorder stopped recording about four minutes before the crash, according to South Korea's transport ministry, reported the New York Post.

The Jeju Air aircraft, a Boeing 737-800, was carrying 175 passengers and six crew members from Bangkok, the capital of Thailand, when it skidded off the runway and crashed into a concrete structure at the Muan International Airport in South Korea. 

A total of 179 died in the crash, with just two crew members surviving  in one of the nation’s worst aviation disasters. The victims ranged in age from 3 to 78.

Sim Jai-dong, a former transport ministry accident investigator, said that he was surprised about the missing data. 

He stated that backup power may have been cut, according to The Post.