What happened
On May 14, 2006, a pilot operating a Diamond DV 20 Katana, registration F-GNJB, departed Saint-Cyr-l’Ecole for a local training flight intended to build navigation experience for a private pilot license. During the initial climb, at an altitude of approximately 300 feet, the aircraft entered a cloud layer, causing the pilot to lose all external visual references.
While attempting to execute a turn to land on the opposite runway, the pilot experienced a loss of control in both pitch and roll, triggering the aircraft's stall warning. The pilot responded by applying full power and focusing on the artificial horizon to maintain wing leveling. Following instructions from the Saint-Cyr controller, the pilot was transferred to Orly Approach for radar monitoring. The aircraft eventually emerged from the clouds at 1,500 feet and was guided to Etampes aerodrome, where the pilot landed safely at approximately 9:35 AM. There were no injuries and no damage to the aircraft.
The investigation
The investigation focused on the pilot's decision-making regarding weather conditions and the club's internal oversight. The pilot had reviewed weather forecasts (TAF) for nearby airfields earlier that morning but had not accounted for the most recent updates. Upon arrival at the aerodrome, the pilot noted overcast skies but was unable to accurately estimate the cloud base height.
Investigators also examined the flying club's internal regulations. The club's rules required pilots holding a basic certificate (BB) to be supervised by an instructor or obtain specific authorization before flying solo. The investigation found that the pilot was unaware of this requirement, believing his certification allowed for independent flight. Furthermore, the pilot had transitioned through three different instructors without a designated primary mentor, and none had reinforced the club's specific solo flight protocols.
Findings
- The primary cause of the incident was the decision to take off without evaluating the height of the cloud base above the aerodrome.
- Inadequate communication and lack of oversight within the flying club contributed to the pilot's unauthorized solo flight.
- The pilot's lack of familiarity with the club's specific operational regulations allowed the flight to proceed without necessary instructor supervision.