What happened
On the evening of November 16, 2008, a Cirrus SR22 (registration N224AG) departed Biggin Hill, United Kingdom, bound for Jersey under Visual Flight Rules (VFR). The pilot was cruising at flight level 50 over the English Channel. At approximately 17:10 UTC, the pilot began a descent toward 3,000 feet following clearance from Jersey Air Traffic Control.
During the descent, the aircraft experienced a sudden and violent deviation. Radar data indicated that the aircraft entered a steep descent with a vertical speed estimated between 6,700 and 8,300 feet per minute, accompanied by a sharp right turn. Shortly thereafter, the aircraft struck the water approximately 15 nautical miles north of Cherbourg, France. The impact was of such high energy that the airframe was destroyed, and the pilot was killed.
The investigation
The investigation focused on the aircraft's flight path, the meteorological conditions, and the pilot's decision-making. Investigators analyzed radar data from Avranches and Cherbourg, which reconstructed the final moments of the flight. The investigation also examined the aircraft's equipment, including the Cirrus Airframe Parachute System (CAPS) and the cockpit's automated systems.
Meteorological analysis revealed that while the pilot had been provided with weather briefings at departure, the conditions in the accident area included low cloud bases (stratocumulus as low as 1,650 feet) and intermittent mist or drizzle. The investigation also reviewed the pilot's experience and the regulatory requirements for operating a US-registered aircraft in European airspace.
Findings
- The pilot chose to proceed with the flight despite weather briefings indicating that VFR conditions would not be sustainable in the area.
- The aircraft likely entered cloud cover during the descent to 3,000 feet.
- The use of the autopilot may have created a false sense of security, potentially leading the pilot to inadvertently deviate from VFR requirements by entering IMC (Instrument Meteorological Conditions).
- The exact cause of the loss of control could not be determined, but the lack of external visual references due to the night and low visibility prevented the pilot from recovering the aircraft.
- The high-energy impact with the sea surface made survival impossible.