Four minutes later, the odor returned and smoke became visible, prompting the pilots to make a "pan-pan-pan" radio call to Moncton air traffic control, the area control center (ACC) station in charge of air traffic over the Canadian province of Nova Scotia.
Catro minutos despois o olor volveu e o fume fíxose visible, levando aos pilotos a realizar unha chamada de radio "pan-pan-pan" ao control de tráfico aéreo de Moncton, o centro de control a cargo do tráfico sobre a provincia canadense de Nova Escocia.