What happened
On February 20, 1991, LAN Chile Flight 1069 operated a regional passenger service connecting Punta Arenas Airport to Puerto Williams Airport. The aircraft arrived at its destination after traveling approximately 300 kilometers (190 miles) from the departure point. Upon landing at Puerto Williams Airport, the aircraft failed to stop within the designated runway limits and overran the end of the pavement.
Investigation
The accident involved a total of 72 individuals aboard the flight. Of these, 66 were passengers and 6 were crew members. The overrun resulted in significant loss of life, with 20 fatalities recorded among the passengers. Fortunately, all 6 crew members survived the incident.
Findings
The primary outcome of the event was the runway excursion at Puerto Williams Airport. The specific mechanical or operational causes for the overrun are not detailed in the provided source material, but the immediate consequence was the fatal injury to twenty passengers during the post-landing phase.