Maurice was under no obligation to notify the AAIB of his Dunking of G-KIRK as it didn't occur in the UK, a UK Overseas Territory or a Crown Dependency.
Maurice is under no obligation to notify the AAIB of his Incorrect Landing incident in G-KURK as it didn't occur in the UK, a UK Overseas Territory or a Crown Dependency.
Not to the UK AAIB but there is an obligation to report to the Air Accident Investigation authority in the country in which the accident/serious incident occurred