On August 15, Frederick Giles was disqualified as he had not arrived in time to meet the navigation qualification test deadline. Giles would go on to attempt a solo flight from San Francisco to Honolulu in November as the first leg of a planned flight to Australia. A missing component on a spare compass for "Miss Doran" sparked fears of vandalism the night before the flight, and competitors vowed to protect their aircraft with shotguns overnight. Pedlar later stated the missing magnet was probably an oversight by the maintenance crew.