On December 11, 1969, a Korean Air YS-11 aircraft was hijacked. The passenger plane, which had departed from Gangneung en route to Seoul, was seized by North Korean operatives and forcibly taken to North Korea.
The YS-11 plane, carrying 47 passengers and 4 crew members, fell victim to a sudden attack by North Korean agent Cho Chang Hee during the flight. Disguised as a passenger, Cho stormed the cockpit shortly after takeoff. Brandishing a pistol, he threatened the pilots, forcing them to alter course and make an emergency landing at Sondok Airport near Hamhung, North Korea.
The 1960s saw heightened tensions between North and South Korea. North Korea actively engaged in military demonstrations and espionage against the South. At the time, there was a lack of awareness of aviation safety, and the airport security system was insufficient. North Korea sought to infiltrate the South through various means to sow social discord.
North Korea claimed that two pilots had voluntarily defected. The hijacked passengers and crew were detained in North Korea, and after protracted negotiations, only 39 were allowed to return to South Korea. Tragically, 4 crew members and 8 passengers were never repatriated. Their fate remains unknown to this day. However, in February 2001, one of the unreturned crew members was reunited with his mother, who visited Pyongyang as part of the third round of separated family reunions.
This incident further strained inter-Korean relations and deeply shocked the South Korean public. It is remembered not merely as an aircraft hijacking but as a symbolic event in the confrontation between the two Koreas. During the tense Cold War era, this incident left a lasting impact on the public and exposed the dark underbelly of inter-Korean relations.
The hijacking of the Korean Air YS-11 was a tragic event stemming from the intense Cold War rivalry between North and South Korea, social instability, and the nascent state of the aviation industry. This incident vividly illustrates the tensions in inter-Korean relations at the time. In its aftermath, awareness of aviation safety increased significantly, leading to the strengthening of airport security systems.