Introduction
On 27 May 2016, a private Robin DR 400/140 B aircraft, registration HB-KEX, experienced a runway excursion during a touch-and-go landing at Sion Airport (LSGS). The flight was conducted under visual flight rules (VFR) by a private pilot.
Aircraft and Operator
The aircraft was owned and operated by Groupe de Vol à Moteur Sion, Aéro-Club du Valais. The type is a Robin DR 400/140 B.
Pilot Information
The pilot was a Swiss citizen born in 1969, holding an EASA private pilot licence (PPL(A)) issued by the Swiss Federal Office of Civil Aviation. Total flight time was 79 hours 6 minutes, with 10 hours 6 minutes in the last 90 days, all on type.
Flight Details
The flight was a private local circuit at Sion Airport, consisting of touch-and-go landings. The intended runway was runway 25.
Event Description
During the first landing, the aircraft touched down approximately 3 to 4 meters left of the runway centerline. During the deceleration phase, the pilot attempted to steer the aircraft back to the center without losing excessive speed. At a speed of about 30 to 35 knots, the aircraft became unstable. The pilot decided to reduce power to idle and avoid braking to maintain a stable attitude. As the aircraft was pointing slightly left with no obstacles in that direction, the pilot elected not to make further corrections and continued straight. The aircraft decelerated slowly and came to rest in the central grassy area adjacent to the runway.
Outcome
The aircraft was not damaged. No injuries were reported among the sole occupant (the pilot). There was no other damage.