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At approximately 7:06 AM, as visibility remained low, the Boeing begun its taxi under the guidance of a "follow me" vehicle to reach the departure runway. Communication between the control tower and the flight crew soon became muddled. The crew was incorrectly informed that they could begin their takeoff from a different runway. Largely due to the lack of a proper aerodrome chart, the pilots failed to accurately recognize their taxiing position.
By 7:26 AM, the crew had expressed doubts about their location, but communication with ground control was convoluted. This confusion only intensified when another aircraft took off, further muddling the perceptions of the crew on VASP’s Boeing where they incorrectly assumed that clearing for takeoff from the left runway was valid.