What happened
During an observation flight, the crew encountered unknown technical problems that necessitated an immediate response. Unable to continue normal operations or return to a suitable airfield, the pilot executed an emergency landing on a beach located in Bispham, north of Blackpool. The aircraft sustained significant damage upon impact and was declared beyond repair. Both members of the crew escaped the incident without sustaining any injuries.
Findings
The source material indicates that the event was triggered by unknown technical problems encountered while airborne. No specific mechanical failure or contributing factor is detailed in the provided text, other than the general classification of the issue as a technical problem requiring an emergency landing.