What happened
On 1 June 2007, a Europa Classic, registration G-HOFC, was conducting a private flight from Bodmin airfield in Cornwall toward Uckfield Farm strip in South Wales. During the flight, witnesses on the ground observed the aircraft maintaining a steady heading and altitude, with the engine appearing to operate normally.
However, the flight was interrupted when the tailplane began experiencing sudden, large-scale vertical oscillations. This movement was violent enough to dislodge papers and other loose objects from the cockpit. Shortly after these oscillations began, the horizontal stabilisers detached from the tail section. This was immediately followed by the wings folding upwards and separating from the aircraft. The engine ceased operation, and the remaining fuselage and structural components fell to the ground. The accident resulted in two fatalities.
The investigation
Technical examination of the wreckage confirmed that the aircraft experienced a catastrophic in-flight structural failure. The investigation identified specific mechanical irregularities regarding the right wing's structure, specifically involving the rear lift/drag pin. Furthermore, investigators found evidence suggesting that the tailplane surfaces were moving beyond their intended operational range, potentially due to flutter.
Findings
- The aircraft suffered a total structural disintegration in flight, involving the separation of both wings and the tailplanes.
- Tailplane flutter is suspected to have caused the excessive movement of the horizontal stabilisers.
- Structural irregularities were identified in the right wing attachment mechanism.
Safety action
Following the discovery of airworthiness concerns, the Popular Flying Association issued two Airworthiness Bulletins regarding tailplane integrity and attachment. These led to the implementation of Mandatory Permit Directives 2007-005 and 2007-006, requiring immediate and repetitive inspections of the aircraft type.