The DC-3 aircraft operated on a round trip cargo flight between Villavicencio to Pacoa, Colombia. After arrival at Pacoa, bad weather conditions forced the flight crew to spend the night there. The next day, the aircraft took off from Pacoa at 06:45 local time. After 10 minutes of flight there was a vibration in an engine, reason for which they decided to land on the airstrip at Villa Gladys. The onboard technician checked the aircraft and performed the corresponding tests with normal results. The flight was then to resume with a take off from runway 29. During the aircraft’s takeoff run the plane made a right turn and the right wing hit the runway. The aircraft became airborne but immediately crashed into some, seriously injuring the onboard technician and killing his two crew members. CAUSES: Since no engine tests or analysis were performed and the aircraft was totally destroyed, the cause of this accident is declared undetermined. Contributing factors: The lack of analysis by the crew when taking off from a waterlogged and muddy runway prevented the aircraft from developing the required performance.