MORs are usually raised in the following circumstances:
In the event of a hazardous situation occurring
In the event that a hazardous situation would occur unless corrective was taken
Whenever the reported believes that there is a safety operational, maintenance or airworthiness-related issue that should be investigated by the CAA.
I believe that a Quarterly Digest of MoRs is published but not sure how a non-AOC holder gets access to that.
G.