What happened
On June 8, 2001, a Robin DR 400/180 R, registration I-ITBC, was performing a landing at the Alfina airfield near Castel Viscardo, Italy. The aircraft had been engaged in glider towing operations as part of training for the World Air Games. To mitigate the effects of a 15-knot southwest crosswind, the pilot elected to land on a parking area located to the left of runway 18, rather than using the designated runway.
During the landing roll, the aircraft initially made contact with the ground only on the left main gear. This caused the left wing to scrape the ground throughout the deceleration phase, inducing a heavy leftward yaw. While the pilot attempted to correct the deviation using right rudder, the nose gear strut failed approximately 19 meters into the roll. This failure caused the aircraft to pitch forward, resulting in the propeller striking the ground. The aircraft continued to veer left until it came to a stop near the edge of the taxiway junction. The pilot exited the aircraft without injury.
The investigation
The ANSV investigation examined the aircraft's wreckage, ground impact marks, and the flight's operational context. Investigators analyzed the structural damage to the airframe, specifically focusing on the left wing, the landing gear, and the propeller. The investigation also reviewed the pilot's landing technique, the airfield's operational procedures, and the accuracy of the performance data provided in the aircraft's operating manuals.
Findings
- The pilot performed the landing on a designated "Run-up and Stand-by Area" instead of the runway, which deviated from standard published procedures.
- The failure of the nose gear strut was the primary factor that led to the propeller strike and subsequent ground excursion.
- There was a discrepancy between the landing performance data found in the Aero Club d'Italia instruction manual and the official manufacturer's flight manual, which could hinder accurate mission planning.
- The airfield manager was reportedly unaware that similar off-runway landings had been practiced previously.