"He seems to ignore the fact that in those conditions the aircraft should not have been where it was in the first place, which as you know is my own opinion"
Your sentence is somewhat contradictory - if the above is your opinion it cannot be a "fact".
It would surely be more correct to write something along the lines of "He seems to ignore the possibility that in those conditions the aircraft should not have been where it was in the first place, which as you know is my own opinion". No-one can surely take issue with the latter statement, as it represents your opinion which is as valid as any other.
This may seem like arguing semantics, but it is, in my opinion, the root of the whole problem - we are where we are because sundry Air Marshals and politicians insist on representing opinions and suppositions as facts.