Does 'She further indicated that the hijackers were not aware of her phone call, and that they had put all the passengers in the back of the plane.' hold a position of neutrality in relation to 'She made a phone call that the hijackers might not have been aware of.'
She further indicated that the hijackers were not aware of her phone call, and that they had put all the passengers in the back of the plane.###She made a phone call that the hijackers might not have been aware of.