"IF" the story is true...goes to show that jet guys have NO business in prop airliners, unless they have flown them extensively in the past....better to call the guys from the CAF for these machines. Most of them are old enough to remember.
Years ago in SQ (B707) mentioned to the F/O before start (joking)..."have a look out the right window and count fifteen blades..."
The Flight Engineer nearly fell off his seat laughing...but the young F/O had no idea what we were talking about. It took two hours of the seven hour flight to BAH to "explain" about the old days in round piston machines.