What happened
On May 18, 2000, at 05:50 UTC, a Robin DR 400-180, registration F-BXJV, crashed in a field near Saint-Mard de Réno, France. The aircraft had departed from Saint-Cyr for Pontivy with two passengers on a professional flight. During the flight, the aircraft encountered deteriorating weather conditions characterized by low cloud ceilings and rain. Witnesses observed the aircraft flying at a low altitude before it suddenly pitched toward the ground. The impact resulted in 3 deaths and the total destruction of the aircraft.
The investigation
The investigation focused on the structural integrity of the aircraft and the flight conditions. Investigators examined the wreckage and found that the left wing had separated from the fuselage in flight. Analysis of the wing spar revealed that it had failed under a positive load factor involving both flexion and torsion. While some manufacturing non-conformities were found in the wood grain of the spar, these were determined not to be contributory to the accident.
Engine analysis confirmed the Lycoming engine was producing power at the moment of impact. The investigation also reviewed the pilot's flight preparation, noting that while he had consulted meteorological services via telephone, the flight plan took him directly into an approaching cold front. The investigation also noted that the emergency locator transmitter (ELT) was found in the manual position.
Findings
- The pilot attempted to continue a VFR flight into deteriorating weather conditions, eventually leading to a total loss of visual references.
- The pilot lacked the specific training and knowledge required to navigate effectively using instruments alone during the period of low visibility.
- The left wing separated from the aircraft due to an extreme load factor caused by a loss of control during a maneuver.
- Professional pressures regarding the scheduled business appointments likely influenced the decision to proceed with the flight despite the weather.