From the Aviation Herald:
Incident: Kalitta B742 at Bogota on Aug 26th 2008, engine failure
By Simon Hradecky, created Tuesday, Aug 26th 2008 15:25Z, last updated Tuesday, Aug 26th 2008 15:25Z
The crew of a Kalitta Air Boeing 747-200 on behalf of Centurion Air Cargo, flight WE264 from Bogota (Columbia) to Miami,FL (USA), reported an engine failure on takeoff from Bogota. The airplane dumped fuel in the area of Ambalema for 40 minutes, then returned to Bogota for a safe landing 90 minutes after departure.
The Aviation Herald