What happened
On 1 May 2018, a Rans S6-ES Coyote LI, registration G-YTLY, was conducting a private local flight from Longside Airfield. During the initial departure, the wind was light from the east. However, upon the pilot's return approximately 20 minutes later, the wind conditions had changed significantly, veering and increasing to an estimated 17 knots from 2/20º.
Due to these altered conditions, the pilot decided to utilize an asphalt taxiway as an alternative landing strip. This taxiway, which is roughly 15 metres wide, is commonly used by local microlight pilots for such purposes. While the approach itself was uneventful, a sudden gust of wind struck the aircraft just as the main wheels touched the ground. This gust lifted the right wing and pushed the aircraft to the left. In an attempt to maintain control, the pilot applied power, but the nose landing gear subsequently collapsed. The propeller made contact with the ground, and the aircraft veered off the taxiway before coming to a halt. There were no injuries to the pilot or the passenger.
The investigation
The investigation examined the aircraft's damage, which included a shock-loaded engine, a damaged propeller, and damage to the landing gear. Investigators reviewed the pilot's pre-flight preparations, noting that the pilot had consulted both the BBC weather and the Met Office's spot wind chart prior to departure. The investigation also considered the local weather patterns at Longside, which are known for sudden wind shifts.