Question 1: Has anyone heard of a procedure on the 747 to stow the inboard reversers first during deceleration in order to avoid debris being blown up and sucked into the outboard engines?
Question 2: The discrepancy between what the FCOM says and what I observe in real life is quite drastic. According to the FCOM, the movement of the reverse thrust levers from full reverse to the idle detent should be initiated latest by 60 knots. When the engines have decelerated to reverse idle, the reverse thrust levers should be positioned to the full down (forward thrust = stowed) position. That would mean that the reversers would be fully stowed at around 30 - 40 knots, just before reaching taxi speed. Does anyone with experience and maybe some technical background on the 747 have any information about the possibility of engine damage because of debris ingestion caused by reaching the fully stowed position at low speeds instead of higher speeds (e.g. around 60 knots)?