The regional flight from Punta Arenas Airport, approximately 300 kilometres (190 mi) distant, overran the runway on arrival at Puerto Williams, killing 20 of the 66 passengers.

The co-pilot was First Officer Juan Antonio Loyola Román; he had a total of 2,493 flight hours, 637 of them on the BAe 146.

[2][3] The flight departed Punta Arenas at 14:51 hours local time with no significant issues.

At 15:15, the aircraft was cleared for a VOR A approach into Puerto Williams Airport on runway 26.

[1][3] The probable cause was found to be a failure of good planning made by the pilot during the approach when he decided to change runway and misapplication of the landing procedure.