Here's one other source, TIGHAR's own article on Manning, with two sources footnoted:
With the three person crew aboard, the aircraft began its take-off roll just after 5:40 a.m. During take-off the Electra veered slightly to the right, and Amelia corrected to the left with a change of engine power; as described in the Luke Field Crash Report:, the aircraft “began to swing to the left with increasing speed, characteristic of a ground-loop…sliding on its belly amid a shower of sparks…”. Luckily there were no serious injuries. Manning had only a bruised elbow, but it was obvious that the World Flight venture was over for the time being. Public comments reported that Manning’s three month leave of absence could not be extended to permit him to participate in another attempt, but the Longs wrote, “Amelia…had talked to Manning, who was very gentlemanly about being replaced by Noonan when the flight resumed.”[19] Frederick Goerner spoke at the Amelia Earhart Symposium presented at the National Air and Space Museum library in 1983. He quoted Harry Manning’s comments years after the Luke Field accident: “Amelia Earhart was something of a prima donna. She gave the impression of being humble and shy; but she really had an ego, and could be tough as nails when the occasion required it. I got very fed up with her bull-headedness several times. That's why she brought Noonan into the picture --in the event I were to give up on the flight. AE herself was not a good navigator; and Noonan was a happy-go-lucky Irishman. He wasn't a 'constant' navigator. I always felt he let things go far too long...” [20] [21]
20. Aviation Journal (California), “Amelia Earhart Symposium”, February 1984, p 5
21. Lovell, Mary S., The Sound of Wings, The Life of Amelia Earhart, St. Martin’s Griffin, 1989, NY, p. 252