What happened
On 17 April 2017, a Piper PA-28-151 Cherokee Warrior, registration G-LUSH, was conducting a private flight near Blackbushe Airport. Following a 40-minute local flight, the pilot returned to the airfield intending to complete two circuits. During the approach, the pilot utilized carburettor heat. After successfully completing a touch-and-go, the pilot returned the carburettor heat to the off position.
While performing a crosswind turn at 500 ft agl, the pilot experienced a sudden and significant loss of engine power. Due to the low altitude and limited time to troubleshoot the issue, the pilot opted to perform an emergency landing in a nearby field. The aircraft struck trees during the descent, causing the wings to detach and resulting in damage to the fuselage and propeller. The pilot escaped the wreckage without injury.
The investigation
Investigators examined the aircraft and the environmental conditions present at the time of the accident. A maintenance organization inspected the engine and aircraft components but found no identifiable mechanical defects. The investigation also reviewed meteorological data, noting a temperature of 11°C and a dew point of 4°C. According to CAA safety guidelines regarding piston engine icing, these specific atmospheric conditions are categorized as being conducive to serious carburettor icing.
Findings
- The pilot experienced a sudden loss of power during a turn following a touch-and-go maneuver.
- The aircraft sustained heavy damage, including the detachment of both wings, due to contact with trees.
- Carburettor icing is considered a likely contributing factor, as the temperature and dew point were within ranges where icing is known to occur.
- No mechanical failures were found in the engine or airframe during post-accident inspections.