Around ten minutes after take-off, as the crew prepared for the onboard meal service, David Mark Robinson, a passenger seated in Row 7, became agitated, stood up and began to make his way down the aisle.
Uns dez minutos despois da engalaxe, cando a tripulación se preparaba para servir a comida, David Mark Robinson, un pasaxeiros sentado na fila 7, axitouse, púxose en pé e comezou a abrirse camiño polo corredor.