Accident sequenceKp. 16 (Chocoriari)

August 1st 2003

• Pick up truck on the top of the slope.• Pipe carrier taking 32” pipes beginning the ascent1.

Slope length: 200 m. ApproxInclination: 25° approx.

Chocoriari

• Pipe carrier stops its ascent and goes back to the bottom where it stops to allow the pick up to pass through..

• Pick up begins the descent2.

• When the pick up was descending, a challenger appears on the top of the hill.3.

• Challenger begins the descent rapidly and uncontrolled, quickly catches the pick up from behind.4.

• Challenger reaches the pick up, impacts it, driving both towards the pipe carrier which is stationary at the bottom.

5.

• Pick up is caught between the pipe carrier and challenger with great force.6.

Maintenance Supervisor Argentinean, Caught in (died)

Inspector TGPColombian (died)

Equipment Operator

Brazilian(died)

Welder

Colombian (Injured)

Pipe carrier taking 6 pipes 32”Operated by:

Without apparent injuries

Equipment Operator

Ecuadorian (died)

Challenger Operated by:

Mechanic/ArgentineanInjured

POSITIONS BEFORE THE ACCIDENTPOSITIONS BEFORE THE ACCIDENT

General view of the placeEquipment involved: Challenger, pipe

carrier, pick up

Challenger involved

Pick up condition after the crash

Pictures

Front part of Challenger which made contact with back part of the pick up

Impacted portion of the pipe carrier by the front part of the pick up

Equipment position after the accident ( pipe carrier was a little bit removed to rescue the passengers)