All but two of the 181 passengers and crew on board the Boeing 737-800 operated by Jeju Air died when it crashed at Muan International Airport, in southern South Korea, on Sunday.
Investigators say the pilot received a warning from air traffic controllers of possible bird strikes and the plane issued a distress signal before the crash.
The bereaved families visited the site on Wednesday for the first time since the crash for an emotional memorial service.
The country is observing seven days of national mourning following the deadliest disaster in South Korea’s aviation history in decades.
