Cap 382
Mister Geezer
I think a report should be accepted as it does seem to fall within the scope of CAP 382 Mandatory Occurrence Reporting Scheme. I think Appendix B Para k would cover it.
Subsequently the CAA should exercise their responsibility as at Para 2.3 d) where they "take such steps as are open to it to persuade foreign aviation authorities and organisations to take any necessary remedial and preventative action in relation to reported occurrences".