The Jeju Air Flight 2216 crash triggered by a bird strike and dual-engine failure, has raised pressing questions around aviation safety, wildlife management, and airport emergency preparedness. Here’s what we know so far,

South Korean authorities said on Wednesday they will change the concrete barriers used for navigation at some airports across the country after the Jeju Air crash that left 179 people dead.

South Korean authorities announced on Wednesday sweeping changes to airport safety measures following the Dec 29 crash of a Jeju Air Boeing 737-800, which resulted in 179 fatalities and marked the deadliest aviation disaster in the country’s history.

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. South Korean investigators previously said the flight data and cockpit voice recorders were key to finding out the cause of last month's crash that killed 179 people.

South Korea will extend runway safety areas and redesign infrastructure after the crash of a Jeju Air Co. flight last month that killed almost everyone on board, sparking criticism that the design of the airport might have exacerbated the accident.