Mitú-Fabio Alberto León Bentley

Wrong approach configuration on part of the crew. Execution of the landing procedure on runway 20 despite the fact that aircraft was unstable on approach. At runway threshold, the aircraft altitude was too high and its speed upon touchdown was excessive (132 knots). The airplane touched down 562 metres past the runway threshold, well beyond the touchdown zone. All brakes systems were activated but the upper right thrust reverser deployed and retracted shortly later due to technical reasons, which was considered as a contributory factor. The following factors also contributed to the mishap:
- Poor techniques used by the pilot-in-command on approach and after touchdown,
- Deviation from standard operating procedures (SOP),
- Non-adherence to published procedures,
- No reaction or corrective action to the EGPWS alarm.

Lack of adequate and effective procedures for fuel handling by the company and crew. Non-compliance by the crew of the aircraft, of the recommendations made by the Fire Fighting Service Airport and Control Tower.

At the time of the accident, weather conditions were good, the crew was fit for flying and the flight conditions were considered as normal. It was determined that the crew noted two consecutives loud 'bang' before control was lost, and it is believed that the aircraft suffered a structural failure of undetermined origin at the altitude of 23,300 feet.

Low situational alert by the pilot-in-command during the final stage of the approach to Mitú Airport and his failure to adequately plan the approach to Yopal Airport during an emergency situation. The following contributing factors were identified:
- Passive attitude of the crew, especially the captain during critical situation,
- Poor crew resources management,
- Lack of crew communication,
- Relative low copilot experience.

The decision and inappropriate operation of the pilot to return with a right hand turn with an uncontrolled fire in the n°2 engine leading to a loss of lift on the wing on that side and a loss of control over the aircraft. It was also determined that the aircraft was not airworthy at the time of the accident. The crew flying experience could not be determined as the crew failed to complete their personal logbook. Also, the captain's medical certificate was not valid anymore.

The following findings were identified:
- Wrong approach configuration on part of the crew,
- Poor approach planning and execution, causing the aircraft to be unstable on short final,
- The landing speed was excessive and the aircraft landed too far down the runway,
- Unnecessary shut down of the engine n°2, causing the hydraulic systems of the main brakes to be unserviceable,
- Late application of the brakes after touchdown.

Decision by the crew to abort takeoff from an inappropriate field due to the wet conditions and soft surface which produced higher coefficients of friction and a lower acceleration factor that prevented reaching takeoff speed after which the crew determined to discontinue the takeoff without sufficient stopping distance, which led to the accident.

Loss of situational awareness on part of the crew after he deviated from the standard approach procedures. The lack of visibility was considered as a contributing factor.