A three-part qualification test was administered to the navigators by Naval Lieutenant Ben H. Wyatt, consisting of a written, oral, and flying examination. For the flight exam, the pilot and navigator were sent over a predetermined course and upon their return, quizzed to determine which points they had passed. By August 11, none of the crews had passed the test. Pedlar's "Miss Doran" was found to have inaccurate compasses. Later, it was noted that only two teams had qualified ("El Encanto" and "Golden Eagle"), with one more likely to qualify ("Oklahoma") by the original date of Friday, August 12. On August 12, four crews had passed: "Oklahoma" (Griffin/Henley), "El Encanto" (Goddard/Hawkins), "Pabco Pacific Flyer" (Irving), and "Golden Eagle" (Frost/Scott). "Miss Doran" (Pedlar/Knope) passed with a new navigator on August 13. By the qualification deadline of August 15, nine crews had passed the tests; "Dallas Spirit" was the final qualifier.