Amazon's search effort was shut down the week of October 29, without any measurable success.[59][60] Major Cynthia Ryan later said it had been more of a hindrance than a help.[60] She said that persons purporting to have seen the aircraft on the Mechanical Turk or have special knowledge clogged her email during critical days of the search, and for even months afterward. Many of the ostensible sightings proved to be images of CAP aircraft flying search grids, or simply mistaken artifacts of old images.