From CAP 382 MOR Scheme
3.3.3 Incident: Means an occurrence, other than an accident, associated with the operation of an aircraft which affects, or would affect, the safety of operation.
Applicability
5.1 Category of Aircraft Involved
The ANO specifies the aircraft covered by the MOR Scheme as:
• Any aircraft operated under an air operator's certificate granted by the CAA
• Any turbine-powered aircraft which has a certificate of airworthiness issued by the
CAA
In the case of organisations providing a service or facility for aircraft operating over or in the UK (e.g. Air Traffic Services, airfields, etc.) any occurrence meeting the required criteria should be reported regardless of the nationality of the aircraft involved.
The last bit of this could apply.