dell30rb
Final Approach
Yes.
Look at the error bars. There is no statistically significant increase (that is, no risk increase that can be reliably inferred from the data).
Source, please? Are you sure you're not confusing increased risk per year with increased risk per flight hour? That confusion seems to be the origin of the aviation community's "danger zone" belief, as far as I've been able to tell.
I agree the small increase above 10,000 is not statistically significant, but it certainly does not go down.
I can't positively cite a source off hand (i've heard this multiple places) but pretty sure I read it in Richard Collins's book "The Next Hour"