What happened
On 17 April 2011, a Jabiru SK, registration G-HINZ, was conducting a private flight returning to Manchester Barton Airport. The aircraft was on a standard approach to Runway 27, with the pilot maintaining an altitude of approximately 250 ft aal. While descending through 200 ft aal, the pilot observed a reduction in airspeed and responded by increasing engine power.
Following this power adjustment, the aircraft underwent a series of pitch oscillations, moving up, then down, before experiencing a sudden downward pitch. This resulted in the aircraft striking the runway surface. The impact caused the nosewheel to detach, and the aircraft slid approximately 30 to 40 metres along the runway. Both occupants were wearing appropriate safety harnesses and sustained no injuries.
The investigation
The investigation was based on the aircraft accident report submitted by the pilot. Investigators examined the aircraft's components, noting damage to the propeller, engine (which had been shock-loaded), cabin floor, and the nosewheel assembly. As part of the technical assessment, the Airspeed Indicator (ASI) was tested and confirmed to be functioning accurately. The pilot was unable to pinpoint a specific single cause for the flight instability during the descent.