One accident report and one AFM that takes it into account. However, there are thousands of accident reports that I have not read and many AFM's that I have not read.
Once again using your logic, if there is only one accident report on the subject, it does not appear to be a concern.
There are many well known accidents where there is only that report about the particular factor causing it. Pt2 probe icing on Air Florida in Washington, United DC-10 loss of all hydraulics due to engine explosion, faulty bulkhead repair on JAL 747 blowing the tail off, Engine falls off DC-10 in Chicago leading to slat retraction.
All these were causes for concern.
I was hoping that you might explain why the authors of this report should not be concerned. Simply because no one else ever had been before?
Actually, the original question was simply whether anyone else was taking the issue into account. It appears that some Citation operators are.
Thanks