Overview
A cargo flight from Bogotá to San Andrés Island encountered atmospheric turbulence while cruising at an altitude of 16,000 feet. During this event, both artificial horizon instruments failed, causing the aircraft to enter an uncontrolled descent. The crew was able to regain control at an altitude of 4,000 feet.
Divert and Landing
The pilot declared an emergency and was cleared to divert to Medellín-José Maria Cordova Airport, where the aircraft landed safely. Both pilots escaped with minor injuries.
Damage Assessment
Post-accident inspection revealed substantial airframe damage, including a crack in the lower main spar boom extending across 35% of its chord. It is believed that the initial damage had been caused by a landing gear collapse on 14 February 1988, which was then exacerbated by the loss of control during the turbulence on this flight.
Outcome
The aircraft was written off due to the extent of the damage.