Information presented to the Captain on arrival consisted of problems with:
- Speed indication
- Lateral instability
- Pitch instability (to a lesser extent)
And certainly one more ... the trim wheels position
That's a important item for the control of a aircraft
But seems the captain forget this important item in his "screening" of instruments
If he was not able to see clearly the position of the Bonin (or Robert) stick (for some reasons) .. at least in the position he occupied in the cockpit .. the captain had full view on the trim wheels .....
There is none so blind as those who will not see