A mechanic's mistake caused the T-50B deadly crash belonging to Black Eagles display team.
Three days earlier, a mechanic performed maintenance checks of the aircraft's flight control system halting a part of the system by inserting a wire. After the check, he forgot to remove this shut-off wire, thus failing to reactivate the aircraft pitch control.
The mechanic's superior committed suicide on Tuesday, said Korean Air Force spokesman.
Captain Kim, Wan – Hee died on November 15, when his T-50B jet aircraft crashed into the mountain in Hoengseong.