Planemike (your #373),
Caught beginning of it. Didn't the lady say that after they got off in Arizona: "300 rpm dropped off" (or words to that effect ?)
That is exactly the result you would expect if someone (?) pulled a two-speed prop back to "Coarse" while flying slowly. The Vultee BT-13 did the same.
Just an idea.
Danny42C.