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Status: Information verified through data from accident investigation authorities
Date:Wednesday 16 February 2022
Time:15:13
Type:Silhouette image of generic SW4 model; specific model in this crash may look slightly different
Swearingen SA226-AT Merlin IV
Operator:Colcharter
Registration: HK-5225
MSN: AT-027
First flight: 1974
Crew:Fatalities: 0 / Occupants: 2
Passengers:Fatalities: 0 / Occupants: 3
Total:Fatalities: 0 / Occupants: 5
Aircraft damage: Substantial
Location:San Andres Island-Gustavo Rojas Pinilla Airport (ADZ) (   Colombia)
Phase: Taxi (TXI)
Nature:Ambulance
Departure airport:San Andres Island-Gustavo Rojas Pinilla Airport (ADZ/SKSP), Colombia
Destination airport:Medellín-Enrique Olaya Herrera Airport (EOH/SKMD), Colombia
Narrative:
The Swearingen SA226-AT Merlin IV, HK-5225, belonging to the company Colcharter, was scheduled to perform two flights as an air ambulance, first from Barranquilla to San Andres (ADZ) and then with a patient to Medellin (EOH). The first leg was uneventful.
The controller cleared the flight to back track on runway 06/24 to the threshold of runway 06 for takeoff.
After having taxied about 200 m, the right engine apparently experienced a substantial periodic acceleration. After the right engine accelerated, there was a trajectory change to the left side of the runway centerline. The crew attempted to keep the aircraft within the runway, however, the crew's efforts did not have a positive result, allowing the aircraft to drift out of the runway into the safety zone. When the aircraft was over the safety zone, the crew attempted to use the braking system, however, the brakes were not effective due to the poor traction of the aircraft's wheels with the grass surface in the safety zone.
The aircraft continued to taxi to the left of the runway, until coming to a complete stop when the nose of the aircraft collided with a concrete wall bordering the airport.
The aircraft suffered substantial damage in the nose area, however, the stress concentration due to the impact was more evident in the left front fuselage area, structurally compromising a large part of the skin.

Accident investigation:
Investigating agency: Aerocivil
Status: Investigation ongoing
Accident number: COL-22-10-GIA
Download report: Preliminary report
Language: 

Classification:
Runway excursion (veer-off)

Sources:
» Aerocivil


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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from San Andres Island-Gustavo Rojas Pinilla Airport to Medellín-Enrique Olaya Herrera Airport as the crow flies is 970 km (606 miles).
Accident location: Exact; as reported in the official accident report.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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GAPPRE
GAPPRE
Global Action Plan for the Prevention of Runway Excursions (GAPPRE): recommendations and guidance material to prevent runway excursions

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